Maga Techs

Category: Computing

  • What is Cloud-first? Explaining the benefits and costs of adopting the cloud

    What is Cloud-first? Explaining the benefits and costs of adopting the cloud

     

    Cloud-first

    With the rise of telework and working from home, an increasing number of companies are considering introducing cloud services to improve operational efficiency. The term “cloud-first” is also becoming more common.

    However, when introducing the cloud, you may have concerns or questions, such as:

    • I don’t understand the effects (benefits).

    • Are the security measures robust?

    • Can it be customized for our company?

    • Won’t the cost of migrating from our current system to the cloud be enormous?

    Therefore, this time we will explain in detail, from the term “cloud-first” to information about the cloud itself. Please use this as a reference if you are considering introducing the cloud but haven’t been able to take the plunge.

     

    What is Cloud-First?

    Cloud-first is a way of thinking that prioritizes using cloud services provided by cloud vendors, rather than building your own in-house infrastructure system.
    The “Basic Policy on the Use of Cloud Services in Government Information Systems” issued in June 2018 also includes wording related to cloud-first.

     

    What is the Cloud in the First Place?

    The cloud is a form of service where you can access systems on the internet and use services as needed, without having to own your own infrastructure environment.
    Examples of cloud environments that companies need to build themselves include:

    • Amazon Web Services (AWS)

    • Microsoft Azure (Azure)

    • Google Cloud

     

    4 Benefits of Introducing the Cloud

    Government agencies have also issued basic policies based on the cloud-first concept, and it is expected that cloud usage will increase further from now on. Let’s first review the benefits of introducing the cloud.

    Low Initial Costs
    First, one benefit of introducing the cloud is that initial costs can be kept low. With on-premises (in-house operation) systems, initial costs include purchasing software and construction costs. There is also the risk that after purchase, the system may not suit the company or the company may not be able to utilize it effectively.
    In comparison, the cloud offers advantages such as being able to start using a service with no initial cost and switch to a different cloud if it doesn’t fit, or being able to change to a service where the cloud vendor has a broader scope of responsibility, allowing the company to focus on development.

    Easy Introduction
    When using existing cloud services as they are, similar to the low initial costs, there is no hassle of purchasing hardware or developing systems, making introduction easy. Contracts are made, and services are used based on content that matches the company’s operations.

    Accessible from Anywhere with an Internet Connection
    With cloud usage, services can be used from anywhere as long as there is an internet connection. Being accessible not only from PCs but also from multiple devices like tablets and smartphones can be a benefit for some companies.
    Since data can be managed on the network, information sharing is also easy. Recently, with the increase in telework and working from home, many companies have decided to introduce the cloud as a result.

    No Hassle of Maintenance and Management
    Compared to operating a system in-house, the cloud has the advantage of not requiring the hassle of maintenance and management. Services can be used including regular updates and maintenance, and many of these tasks are automated, allowing the company to concentrate on its own business.

     

    What About Cloud Security?

    When introducing the cloud, data is managed over the internet. Many companies might feel anxious about security, such as the risk of unauthorized access by third parties.
    Below, we explain points for using the cloud safely.

    Organize Your Company’s Data Importance and Clarify Measures for Each
    To use the cloud safely, it is important to organize the importance of your company’s data before introduction. Furthermore, as a point when selecting a service, it is necessary to understand the term “division of responsibilities.”
    The division of responsibilities is a boundary line that defines which parts of the infrastructure the cloud service provider and the client company are responsible for, from start to end. As the scope of responsibility also applies to security responsibility, it is necessary to check the service details based on the division of responsibilities before use.
    Choose services and clouds that match the importance of your data, and clarify the risks and their countermeasures.

    Select a Cloud Vendor that Matches Your Company’s Security Policy
    Along with organizing the importance of your company’s data, reconfirm your company’s security policy and choose a cloud that matches it.
    For example, confirmation is necessary as there are cases where industry guidelines or related laws and regulations might be violated. If there is no cloud vendor that matches your company’s security policy, you need to consider options such as:

    • Continuing with on-premises (in-house operation)

    • Multi-cloud (combining multiple cloud systems)

    • Hybrid cloud (using both on-premises and cloud services)

     

    Can the Cloud Be Customized for Your Company?

    Next, we will explain cloud customizability for companies considering introducing the cloud.

    Customizability Varies Depending on the Type of Cloud
    Cloud customizability differs depending on the type of cloud.
    Clouds are broadly classified into three types. Their characteristics are summarized below.

    SaaS (Software)
    SaaS stands for “Software as a Service,” and it is premised on using the application functions provided by the service provider as they are.
    It is characterized by low customizability, as it does not require complicated settings or design.

    PaaS (Platform)
    PaaS stands for “Platform as a Service,” where the provider offers development tools and OS functions needed to use applications.
    Unlike SaaS, which uses a completed service, PaaS requires system construction according to the company’s operations, so a certain level of specialized knowledge is necessary.
    However, its customizability is higher than that of SaaS.

    IaaS (Infrastructure)
    IaaS stands for “Infrastructure as a Service,” and it is the cloud with the highest customizability. As it is limited to providing infrastructure functions like servers and networks, the company can customize and apply elements such as the OS and memory capacity to suit its needs.
    Due to its high degree of freedom, it may be necessary to have staff with specialized knowledge in-house or outsource to an external party.

     

    Cloud Migration Costs

    You might also have questions about how much it costs to migrate to the cloud.
    Here, we explain the costs associated with cloud migration.

    Migration Costs Can Be High if the Existing System is Complex
    The cost of migrating to the cloud varies depending on the complexity and scale of the existing system being used. This is because before migration, it is necessary to analyze the impact and risks of the migration, and system design will be carried out accordingly.

    It is Important to Simulate Migration Costs Based on Your Company’s Current System
    Grasp the current state (needs) of your company’s system and check if there are services that match it. Then, simulate whether migrating to the cloud would be beneficial.

     

    Summary: The Cloud Can Optimize Operations Through Proper Introduction

    This time, we explained the “cloud” and “cloud-first,” terms that have become common recently. If the cloud can be introduced according to the needs of your company’s operations, it can lead to:

    • Reduction of costs and effort

    • Increased efficiency of regular operations
      This allows you to optimize your business operations.
      Companies considering introducing the cloud should start by organizing the importance of their operational data, reconfirming their security policy, and beginning with simulations.

     

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  • Difference between cloud and VPS? A clear explanation of how to choose the right service for your company!

    Difference between cloud and VPS? A clear explanation of how to choose the right service for your company!

    Do you know the difference between the cloud and VPS? Both utilize virtualization technology, but strictly speaking, they are different. So, what exactly are the differences?

    In this article, we will explain the basics of the cloud and VPS, as well as the differences between them in an easy-to-understand way. We will also explain how to choose the right service for your company from the perspective of whether you should choose the cloud or VPS, so please read to the end.

    Difference between cloud and VPS

     

    What is the Cloud?

    The cloud refers to a “virtual infrastructure on the internet.” Instead of storing data on devices like PCs or smartphones, storing and operating it in a virtual space (server) that exists on the internet is called “cloud computing.”

    Generally, the cloud is classified into three categories: “SaaS,” “PaaS,” and “IaaS.”

    TypeFeaturesService Examples
    SaaSRuns applications and software on the cloud・G Suite
    ・Office365
    ・Online storage
    PaaSProvides application development environments on the cloud・Google App Engine
    ・Microsoft Azure
    IaaSProvides system infrastructure on the cloud・Google Compute Engine
    ・Amazon Elastic Compute Cloud

    Additionally, within the cloud, there are “public clouds” and “private clouds,” each with different characteristics. Please see the reference article below for details.

    Features

    High Customizability
    Because the cloud allows you to freely use multiple servers, it offers higher customizability compared to VPS. This enables flexible operation according to your company’s objectives. However, please understand that the degree of freedom is lower compared to on-premises environments where you prepare all the equipment yourself.

    Many Services Use a Pay-as-You-Go Model
    Many cloud services adopt a pay-as-you-go pricing model. This is a system where the fee fluctuates based on resource usage; the more you use, the higher the cost. Therefore, when introducing cloud services, it is necessary to correctly understand the billing conditions and use them appropriately.

    High Flexibility and Scalability
    A major characteristic of the cloud is its high flexibility and scalability. Because a single contract allows you to use multiple virtual servers, you can increase or decrease resources according to your company’s situation, or operate by dividing virtual servers for different purposes. This ability to achieve flexible management that can respond to change is a significant advantage of the cloud.

    Usage Scenarios

    Main usage scenarios for the cloud include:

    • Cost savings by leveraging the pay-as-you-go model

    • Reducing costs for introducing servers and software

    • Improving operational efficiency by omitting maintenance

    • Starting small with the assumption of future resource expansion

    • Operating multiple servers according to purpose

    • Running websites with sudden traffic fluctuations

    As you can see, the cloud has a wide variety of usage scenarios. If you are considering using virtual servers, please use this as a reference.

     

    What is VPS?

    Overview

    VPS is an abbreviation for “Virtual Private Server.” Simply put, VPS is a service that builds independent virtual servers on a physical server, allowing you to use them as if they were dedicated servers just for your company.

    A similar service to VPS is “shared hosting,” but the two are clearly different. With shared hosting, multiple users share one physical server, so there are restrictions on the OS and memory, and your usage may be affected by other users.

    On the other hand, while VPS also involves multiple users sharing one physical server, it utilizes virtualization technology so you can use it as if a dedicated server for each user were built on the physical server. For example, in VPS, a guest OS for each user is prepared on top of the host OS of the physical server, and users do not interfere with each other.

    Furthermore, because you can freely use applications, memory, etc., in your own environment, flexible operation tailored to the situation is possible. Thus, a major advantage of VPS is its higher degree of freedom compared to traditional shared hosting, and the absence of failures or slowdowns caused by other users.

    However, because VPS is a service form that essentially uses only a single virtual server, its freedom and customizability are lower compared to the cloud, which allows the use of multiple virtual servers.

    Features

    Easy to Introduce and Operate
    VPS uses a simple mechanism where one virtual server is allocated to one user. Therefore, it is relatively easy to introduce even without specialized IT knowledge. Additionally, because hardware resources dedicated to the user are allocated to the VPS virtual server, it is less susceptible to the influence of other users, which is another feature that helps reduce operational workload.

    Many Services Use a Flat-Rate Model
    While we explained that many cloud services use a pay-as-you-go model, most VPS services use a flat-rate model. The amount varies depending on the VPS provider and plan, but you pay a predetermined fee each month. Therefore, one characteristic of VPS compared to the cloud is that it is easier to plan budgets.

    Resources are Predetermined
    With VPS, the usable resources (CPU, memory, SSD, data capacity) are determined for each plan, similar to a physical server. Basically, you cannot change the contracted plan later, so it is important to choose the optimal service and plan based on your company’s purpose, usage, and budget for using VPS.

    Usage Scenarios

    Main usage scenarios for VPS include:

    • Operating with only one server

    • Cost optimization through monthly flat fees

    • Operating systems that do not require customization

    • Ensuring stability without being affected by other users

    As you can see, the usage scenarios for VPS differ from those for the cloud. Understand the characteristics of each and choose the service that suits your company.

    Differences Between Cloud and VPS

    We have explained cloud and VPS separately up to this point, but what exactly are the differences?
    This chapter explains the differences between the two in an easy-to-understand way.

    Initial Cost

    Regarding initial costs, there is no significant difference between cloud and VPS. Both are services that operate by renting a virtual server environment, so there is no need to prepare physical servers or network equipment, and in many cases, they can be used with no initial cost.

    Pricing Structure

    Many cloud services adopt a pay-as-you-go model where the cost increases with usage, while many VPS services adopt a flat-rate model where a fixed amount is paid monthly. Each pricing structure has its pros and cons, so it is important to choose the optimal service according to your company’s situation.

    Number of Virtual Servers

    The cloud allows the use of multiple virtual servers according to the purpose, but VPS only allows the use of one virtual server. For simple operation with a single server, VPS is sufficient, but if customization is needed, you should choose the cloud.

    Scalability

    The cloud is highly scalable, allowing you to freely increase or decrease resources as needed. On the other hand, VPS does not allow flexible resource changes, so if you need to reassess resources, you may have to cancel the service and sign a new contract.

    Customizability

    Because the cloud allows you to freely use multiple servers, its customizability is relatively high. On the other hand, VPS builds independent virtual servers on a single physical server, so customizability is lower. If you want to achieve flexible operation, the cloud is a recommended choice.

     

    Summary

    The following table summarizes the differences between cloud and VPS.

    ItemCloudVPS
    Initial CostOften freeOften free
    Pricing StructureOften pay-as-you-goOften monthly flat-rate
    Number of Virtual ServersMultiple servers can be usedOnly one server can be used
    ScalabilityHighLow
    CustomizabilityHighLow

    As you can see, there are various differences between cloud and VPS. They are services with different characteristics, so it is important to choose the optimal one according to your company’s situation.

     

    How to Choose Between Cloud and VPS for Your Company

    In the previous chapter, we detailed the differences between cloud and VPS. However, when it comes to actually choosing a service, some people may get confused and not know the criteria for judgment.

    Therefore, in this chapter, we will explain how to choose the optimal service for your company from the perspective of “whether to choose cloud or VPS.”

    As a basis for thinking, it’s easy to understand if you think of “the cloud as an evolved form of VPS.” First, judge whether VPS can meet your company’s requirements, and if it’s difficult, consider the cloud.

    Cost

    When introducing a new service, cost is an important point. To manage a business efficiently, it is necessary to minimize introduction costs and maximize cost performance.

    As mentioned earlier, because the cloud is an evolved form of VPS, the cloud generally tends to be more expensive than VPS. If you have budget flexibility, you should consider the cloud, but if you want to keep costs as low as possible, choose VPS.

    Intended Use

    When your company considers cloud or VPS, it is important to clarify its intended use. Although the cloud tends to be more expensive than VPS, the cloud allows flexible customization and free expansion, so depending on your company’s requirements, using the cloud may be essential.

    Cases where cloud usage is required include situations where multiple virtual servers are needed, or when operating with the assumption of resource expansion. First, calmly analyze your company’s situation and specify the necessary functions and requirements.

    Then, based on that, decide whether to choose cloud or VPS, considering your budget. Additionally, since many cloud services use a pay-as-you-go model, to make running costs easier to manage, you should choose one with clear billing conditions.

    Need for Customization

    When choosing between cloud and VPS, the need for customization is a point you must check. This is because if you need individual customization tailored to your company’s situation, it is often difficult to achieve with VPS.

    If no customization is needed and you are performing general system operation, VPS is sufficient. However, if you are operating with the assumption of customization, using the cloud is the recommended option. By clarifying your intended use and considering the need for customization in this way, you can make an appropriate decision.

     

    Google Cloud (GCP) is Recommended for Cloud Use

    Both the cloud and VPS are convenient services that utilize virtual servers, but using the cloud is recommended to survive in an era of rapid change. The cloud allows you to flexibly respond to unexpected changes, and it is possible to build a stable management foundation that allows you to continue your business calmly even if problems occur.

    There are various cloud services on the market, but cost performance and operational efficiency vary greatly depending on which service you choose, so please select carefully.

    For example, service reliability is a very important point. You don’t want to use a service that might be discontinued at any time, right? Also, because the cloud is a pay-as-you-go service, choose one with easy-to-understand billing conditions. Otherwise, there is a risk of unexpectedly high charges.

    Additionally, you need to consider factors such as ensuring security to prevent information accidents and data processing speed to improve productivity. Taking these various elements into account, it is important to choose the cloud service that best suits your company.

    And one service that meets all these elements at a high level is “Google Cloud (GCP),” a public cloud service provided by Google. Google Cloud (GCP) is also used as the infrastructure for operating Google’s services such as Gmail, YouTube, and Google Maps, and its major characteristic is its proven track record of service operation.

    Here are some reasons why Google Cloud (GCP) is recommended for cloud use:

    Google’s Growth Potential

    Google’s technology, which is at the forefront of the world, evolves daily. Because Google Cloud (GCP) is a cloud service provided by Google, the service itself continues to grow along with Google’s evolution.

    New features are added and usability is improved in short cycles, allowing companies to always leverage the latest technology for their management. This ability to freely utilize Google’s infrastructure is a major reason for Google Cloud (GCP)’s popularity.

    Easy Cost Management

    Google Cloud (GCP) is a service provided 100% in the cloud, so there are no initial costs. The monthly fee is “pay-as-you-go,” meaning you pay only for what you use, not a fixed amount each month.

    Therefore, there is no worry about incurring unnecessary costs, and you can use the service according to your company’s situation. Furthermore, Google Cloud (GCP)’s billing system is designed to be simple and easy to understand, and you can check your bill amount anytime from the management console.

    Thus, in addition to the functional advantage of being able to use Google’s infrastructure, the ease of managing incurred costs is another attraction of Google Cloud (GCP).

    High Security Level

    Google Cloud (GCP) has a high level of security with third-party certifications, undergoing many annual audits such as “SSAE 16 / ISAE 3402 Type II: SOC 2/ SOC 3,” “ISO 27001 / FISMA Moderate,” and “PCI DSS v3.0,” so you can use it for actual business with confidence.

    Because Google Cloud (GCP) is a highly robust service, it is increasingly used not only as a primary environment but also as a sub-environment for hybrid clouds. By using Google Cloud (GCP) to create redundancy, you can achieve more secure cloud operation.

    Fast Data Processing Speed

    Google services are famous for their fast data processing speed. For example, with the big data analysis service “BigQuery” built into Google Cloud (GCP), queries that usually take a long time can be completed in seconds or tens of seconds for data volumes of several terabytes or petabytes. Data processing speed is an important point directly linked to work productivity, and this is one reason why Google Cloud (GCP) is chosen.

    The following article is helpful regarding BigQuery.

     

    Conclusion

    In this article, we have explained the basics and differences between the cloud and VPS in an easy-to-understand manner. We hope you now understand the characteristics of each and how to choose a service that fits your company.

    Recently, the importance of virtualization technology is increasing due to changes in the social environment and increases in data volume. While both the cloud and VPS utilize virtual servers, they actually have many differences in terms of pricing structure, scalability, and customizability.

    Both are convenient services, but using the cloud is recommended to survive in an era of rapid change. The cloud allows you to flexibly respond to unexpected changes, and it is possible to build a stable management foundation that allows you to continue your business calmly even if problems occur.

    There are numerous cloud services on the market, but if you are considering introduction, please consider Google Cloud (GCP) as an option. By utilizing Google Cloud (GCP), companies can enjoy many benefits, including a high security level and high-speed data processing.

     

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  • What is multi-cloud? A thorough explanation of the advantages and disadvantages, as well as five steps to using it!

    What is multi-cloud? A thorough explanation of the advantages and disadvantages, as well as five steps to using it!

    Multi-cloud refers to a method of combining cloud services from multiple different providers, leveraging the strengths of each to build a more optimal operational environment.

    Generally, it is sometimes treated as a synonym for hybrid cloud. However, more often, multi-cloud specifically refers to an operational method that aims for optimization by using multiple public clouds provided by different vendors together.

    Additionally, unlike private cloud, it utilizes the cloud environments and service areas provided by vendors without integrating them. This allows for designing an optimal cloud environment for various purposes, such as building backup and recovery systems, or using different services for specific business processes or phases.

    multi-cloud

    Difference Between Multi-cloud and Hybrid Cloud

    A term often confused with multi-cloud is “hybrid cloud.” Hybrid cloud refers to a cloud operational model that combines different types of services, such as private cloud and public cloud.

    The clear difference between multi-cloud and hybrid cloud lies in whether cloud environments from multiple vendors are used together or mixed together according to business requirements and objectives.

    In multi-cloud, since the same type of service from multiple vendors is used concurrently, they can be used simultaneously depending on the business process or phase, and rapid recovery is possible even in the event of a major failure. This enables operation in an optimal environment without disrupting business.

    On the other hand, hybrid cloud primarily mixes private and public clouds, interconnecting them to build a system. This allows for ensuring data management security and risk distribution while keeping costs down.

    Thus, multi-cloud and hybrid cloud are distinguished as different concepts. It is important to correctly understand their respective characteristics and differences.

    If you are interested in hybrid cloud, the following article is recommended:
    What is Hybrid Cloud? A thorough explanation of its advantages, disadvantages, and key points for construction!

    Advantages of Multi-cloud

    What benefits can companies enjoy by introducing multi-cloud? Here are some representative ones.

    Freedom to Customize
    When selecting a cloud environment, companies need to make comprehensive decisions based on business requirements, considering each vendor’s unique features, pricing, and adoption of advanced technologies like IoT, AI, and blockchain.
    With multi-cloud, you can combine the advantages of multiple vendors—their environments, functions, and service characteristics—to build a custom solution unique to your company. This makes it possible to customize and build a unique cloud environment tailored to specific purposes.

    Avoiding Vendor Lock-in
    Vendor lock-in is a problem where a company becomes overly dependent on a specific vendor’s functions or technologies, losing system flexibility. Examples include unexpected service termination or price revisions. High dependency on a vendor carries the risk of proportionally high impact on the business.
    However, multi-cloud, which uses services from multiple different providers concurrently, can reduce dependency on any single vendor, thus avoiding vendor lock-in and leading to more stable business continuity.

    Risk Distribution
    With multi-cloud, using multiple vendors facilitates risk distribution through system redundancy, backups, and recovery. Even with highly reliable cloud models from major providers, system downtime or inadequate backup/recovery setups during failures are not guaranteed.
    However, because multi-cloud uses the same type of service from multiple vendors, it not only distributes risk but also contributes to ensuring business availability.

     

    Disadvantages of Multi-cloud

    Multi-cloud also has disadvantages, not just advantages. It’s important to understand these beforehand to avoid panic after implementation.

    High Operational Load
    Since multi-cloud involves using multiple services simultaneously, the variety of cloud management consoles can complicate operations and potentially increase the operational burden.
    While it excels in risk distribution, BCP measures, and redundancy, when operating a diversified multi-cloud environment, it is crucial to establish a system that centralizes management and operation across the multiple cloud environments.

    High Operational Costs
    While multi-cloud offers many functions, receiving services from multiple vendors can sometimes lead to higher operational costs.
    Also, due to the nature of multi-cloud using multiple environments, you might miss out on typical volume discounts, potentially increasing initial costs as well. This highlights the disadvantage of consistently higher costs.

    Potential Increase in Security Risks
    Because multi-cloud uses multiple cloud environments, the increase in security standards and targets can make vulnerabilities in security strength a risk.
    While effective for risk distribution, managing multi-cloud becomes proportionally more complex as more environments are used concurrently. Naturally, setting common IDs and passwords for convenience would increase the risk. To enhance security and system convenience simultaneously, it is important to establish a management framework different from traditional security measures.

     

    What You Can Achieve with Multi-cloud

    What specific things can be achieved by introducing multi-cloud? Let’s look at some concrete examples.

    Use Different Cloud Environments for Different Services
    By utilizing multi-cloud, you can use different cloud environments for different services. This is effective, for example, when adopting different OSes for internal systems versus external services, or when using different versions of software.

    Use Different Cloud Services for Different Functions
    Multi-cloud allows you to use multiple clouds not only per service but also per function. Recently, to leverage new technologies like AI and IoT, there are situations where you need to use cloud services that support them.
    In such scenarios, multi-cloud enables, for example, using Company A’s cloud service, which excels in voice recognition, together with Company B’s cloud service, which has a superior chatbot, to further improve your company’s productivity.

    Enable Global Expansion
    For companies considering global expansion, complying with local regulations (e.g., data must be stored in domestic data centers) can be a major issue. However, by utilizing multi-cloud, you can separate cloud environments for domestic services and those for overseas, allowing for flexible compliance with regulations.

    Distribute Risks Like Failures
    If a cloud server goes down due to a failure or trouble, there’s a risk your business could stall. However, since multi-cloud does not depend on a specific vendor, you can flexibly distribute risks and handle recovery, enabling more stable system operation.

     

    5 Steps for Utilizing Multi-cloud

    When utilizing multi-cloud, proceed sequentially through the following five steps:

    1. Visualize Issues

    2. Examine the Need for Multi-cloud

    3. Compare Multiple Cloud Services

    4. Decide on Operational Management Method

    5. Formulate a Migration Plan

     

    Let’s look at each step in order.

    1. Visualize Your Company’s Issues
    First, it is crucial to visualize your company’s current issues. Only by correctly grasping the challenges and problems can you consider the optimal multi-cloud configuration for your company. Therefore, examine the situation from multiple angles and carefully. It is no exaggeration to say that this initial step determines the success or failure of multi-cloud adoption.

    2. Examine the Need for Multi-cloud
    Once issues are visualized, next consider whether multi-cloud is necessary. Depending on the nature of the issue, methods other than multi-cloud might be more effective. Therefore, it is important to carefully consider whether multi-cloud is truly effective for solving the problem.

    3. Compare Multiple Cloud Services
    Once you decide to adopt multi-cloud, compare and consider multiple cloud services. Even when simply saying “cloud services,” their types are diverse, and each service has its own characteristics and strengths. So, check various services and select the one most suitable for your company.

    4. Decide on Operational Management Method
    After deciding which cloud services to adopt, determine the specific operational management methods. Because multi-cloud involves running multiple clouds in parallel, the operational and management burden tends to be higher. Clearly envision the actual post-implementation operation and consider methods that minimize effort.

    5. Formulate a Migration Plan
    Once the details of operational management are finalized, finally formulate a migration plan. Decide on the data to be migrated and the migration method when moving from the current environment to the multi-cloud environment. The optimal migration method varies depending on the situation, so it’s important to discuss ideas with multiple people and consider it from various perspectives.

     

    If You’re Going to Use the Cloud, Google Cloud is Recommended

    As mentioned earlier, when introducing multi-cloud, it is important to compare and consider multiple cloud services. While various cloud services exist in the market, if you’re going to adopt one, Google Cloud is recommended.

    Below, we explain the overview of Google Cloud and the reasons for the recommendation.

    What is Google Cloud?
    Google Cloud is a public cloud service provided by Google. Other services in the same category include Microsoft’s “Azure” and Amazon’s “AWS.”
    With Google Cloud, you can utilize Google’s secure and highly stable IT platform environment within your own company. It enables seamless realization of “IT strategies that go beyond just using the cloud,” such as big data integration with Google Workspace.
    Furthermore, excellent data analysis tools like “BigQuery” are available, enabling not just a few experts but the entire organization to leverage data for management strategy formulation and business improvement. Additionally, by utilizing Google Cloud’s diverse range of services, highly accurate data analysis can be achieved.

    User-Friendly Interface
    A major characteristic of Google Cloud is its user-friendly interface. Many operations can be completed with button clicks or drag-and-drop, making it easy for even those without specialized knowledge to use.

    Fast Data Processing Speed
    Google Cloud is based on the same infrastructure as YouTube, which streams 60 billion hours of video monthly, and Gmail, used by over a billion users. Therefore, it boasts fast and stable performance, enabling smooth real-time processing even for large amounts of data.

    Flexible Scaling
    As Google Cloud is a 100% cloud-based service, it can scale flexibly according to the situation. Even if data volume increases in the future, resources can be easily added, allowing for secure service operation.
    Additionally, Google Cloud supports auto-scaling, automatically increasing or decreasing resources based on your company’s situation. This eliminates the need for administrators to change settings or perform complex resource adjustments each time. Since Google Cloud handles these tedious tasks automatically, your company can focus on core business activities, directly leading to improved efficiency and productivity.

    High Security Level
    Google Cloud features a high level of security with third-party certifications, undergoing various annual audits such as:

    • SSAE16 / ISAE 3402 Type II: SOC 2/SOC 3

    • ISO 27001, FISMA Moderate

    • PCI DSS v3.0
      This allows you to manage and operate your cloud environment under secure conditions, reducing various risks like information leaks and enabling safe work progression.

     

    Summary

    This article introduced everything from the basics of what multi-cloud is, to its advantages and disadvantages, and five steps for its utilization, covering all perspectives at once.

    In today’s rapidly changing world, multi-cloud is a very effective option. By introducing multi-cloud, companies can enjoy various benefits such as flexible customization and avoidance of vendor lock-in.

    While various cloud services exist in the market, if you’re going to adopt one, Google Cloud is recommended. It offers numerous advantages for companies, including a user-friendly interface, fast data processing, and a high level of security.

     

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  • What kind of work and skills do you need to know if you become a cloud engineer?

    What kind of work and skills do you need to know if you become a cloud engineer?

    In this article, we will explain the outline, work content, required skills, demand, future potential, etc. of cloud engineers.

    In the last few years, the word “cloud” has become quite familiar to our lives.
    The use of cloud services such as online storage has become widespread among individuals, and cloud computing is steadily increasing, especially in companies.

    And the demand for cloud engineers to cope with this rapidly increasing “cloudization” is increasing, and it is also attracting attention as an engineer’s career.

    Let’s take a concrete look at cloud engineers.

     

    1. What is a cloud engineer?

    1.1 Born due to changes in the infrastructure environment accompanying the cloud era

    A cloud engineer is an engineer who designs, builds, operates, and maintains infrastructure such as servers and networks in a cloud environment .

    Cloud (Cloud Computing) is a form of using necessary functions at a destination connected to a network via the Internet.
    By using this cloud, “clouding” has the advantages of speeding up installation, reducing costs, and reducing operational load. In the past, infrastructure engineers and network engineers had to spend time on network and server installation and management. The work load such as is also lightened.

    Cloud engineers are often involved in cloud computing, and need to have knowledge and experience around infrastructure and be familiar with the cloud.

    From such a trend, it seems that infrastructure engineers are also required to acquire cloud knowledge and technology and become cloud engineers who are strong in “infrastructure + cloud”.

    It can be said that cloud engineers were born from the changes in the infrastructure environment accompanying the cloud era.

     

    2. What the cloud engineer does

    Cloud engineers are engaged in work in the following cloud environment *, and the work content may differ slightly depending on the environment.

    Types of cloud environment *
    Public cloud: Cloud service that can rent the infrastructure environment required for system operation
    Private cloud: Cloud that is built and operated exclusively by the company
    Hybrid cloud: Cloud environment that uses both public cloud and private cloud

    2.1 Infrastructure design on the cloud

    The important work of a cloud engineer is design work on the cloud.

    The public cloud does not require the physical design of your own data center, but we will design by taking advantage of the features and services of the cloud service you use .
    In the hybrid cloud, it is also necessary to design the connection part that connects the data center and the cloud, and it will be useful to have knowledge of the network because design information is added to routers and switches and router installation work is required. ..

    There are various cases such as migration work from on-premises to the cloud and launching a new system on the cloud, but in each case, it is important to design considering the high availability * and scalability * that are the characteristics of the cloud. Will be.
    In addition, each cloud service provides learning resources and tools to support your design.
    For example, on AWS, the AWS Well-Architected Tool allows you to check whether the design is in line with the optimal use of AWS.

     

    High Availability *
    Obtain higher reliability by keeping the system running without stopping due to a failure or the like.

    Extensibility *
    Obtain higher processing performance by distributing processing

    2.2 Building the cloud

    We will build a system environment on the cloud by using various functions provided by the cloud service.

    When creating a virtual server , you set the server location, network settings, load balancer for redundancy and load balancing, backup, and so on.
    In addition, cloud storage settings for data sharing and storage , virtual network construction, and selection of optimal database services are performed.

    In addition, infrastructure may be coded to simplify infrastructure management, change management, and improve efficiency by automating infrastructure construction .

    2.3 Cloud operation and maintenance

    As with on-premises, it is the job of the cloud engineer to operate and maintain after construction.

    We have tasks such as tuning for stable operation of various services, management of operating costs , version upgrades of OS / middleware / applications, patch application , authority management , and system monitoring .

     

    3. What skills are required of cloud engineers?

    cloud engineer

    3.1 Knowledge of public cloud services

    Engineers involved in cloud operations need not only basic knowledge of the cloud, but also knowledge and skills related to public cloud services such as AWS .

    Various cloud services provide certifications by level and specialty, as well as a wealth of training and learning sources .
    Qualifications allow you to systematically study services and architectures that you do not normally use, so it is a good idea to try them.

    In recent projects for cloud engineers, it seems that the number of businesses dealing with typical public cloud services such as AWS (Amazon Web Services) , Azure (Microsoft Azure) , and GCP (Google Cloud Platform) is increasing rapidly.
    Even if you have no work experience, holding a certification will be useful as a proof of knowledge and skills for such cases.

    3.2 Knowledge and skills of the latest cloud-related technology

    Cloud trends are constantly changing as companies become more “cloud-first”.

    One of the skills you need to know is to grasp and understand the latest trends in container technology, serverless computing, security and more.

     

    3.3 Knowledge and experience of cloud technology

    3.3.1 Server virtualization

    Virtual server , which is the most basic of the cloud environment Understand the procedures and optional functions for using a virtual server
    on the cloud, knowledge about server virtualization technology, and the advantages and disadvantages of server virtualization.

    3.3.2 Network virtualization

    It is a good idea to acquire the following knowledge and skills regarding network virtualization technology. -A technology that divides the network to enable the exchange of limited data in

    VLAN (Virtual LAN) -VPN (Virtual Private Network) Makes a private connection like a dedicated line to realize a network connection method with a high security level. Technology – NFV (Network Functions Virtualization) Technology that implements network functions as application software on a virtual server in order to flexibly respond to configuration changes of network devices.

    Also, for VPN services provided by major cloud services

    • Amazon VPC (Virtual Private Cloud)
    • Azure VPN Gateway
    • Google Cloud VPN

    And so on.

    3.3.3 Database technology

    Each cloud service provides various database services.

    • Free RDBMS such as MySQL and Postgre
    • Paid RDBMS such as Oracle, Microsoft SQL Server
    • Database services provided by each cloud service (Amazon RDS, Azure SQL Database, Google Cloud SQL, etc.)
    • NoSQL (database that is not a relational database)

    RDBMS is most often used, but for big data analysis and IoT, a distributed database such as NoSQL that distributes a large amount of data and performs high-speed processing is used.

    By understanding the characteristics of each database, acquiring knowledge, and selecting a database according to the purpose of use, you can build a faster and more scalable cloud environment.

     

    4. Demand and future potential of cloud engineers

    ■ The domestic market size of cloud services has grown to 1.9 trillion yen (FY2018)
    ■ The movement to move existing corporate systems to the public cloud is in full swing
    ■ AWS, Azure, GCP (Google) global vendors are becoming oligopolistic

    • (Reference source: MM Research Institute: From the 2019 Domestic Cloud Service Demand Trend Survey )

    According to the [Cloud Service Market Scale / Results / Forecast] report released by MM Research Institute, the movement to cloud the infrastructure of companies is accelerating, and it is expected to reach 4,475.4 billion yen in FY2011. It can be predicted that the demand for cloud engineers will increase as the number of cloud-related businesses and operations increases.

    In the public cloud services industry, AWS usage is more than half, and more and more companies are deploying Azure and GCP .

    In the future, each cloud service company will compete to evolve cloud technology by providing new services and parts used in the latest technologies such as machine learning and IoT, which are not limited to infrastructure.

     

    In addition, Gartner Inc. predicts that 80% of companies will close their data centers by 2025, and with the birth of technologies such as cloud services and IoT, the advantages of conventional on-premises data centers will be diminished. I point out that I will go.
    * Reference source: The Data Center is Dead (Gartner Blog Network) )

    From the above, it can be expected that the demand for cloud engineers will increase, and it can be considered that there is a future.

    5. Summary

    Nowadays, which is called the cloud era, many cloud engineers are needed and demand is increasing, but there is still a shortage of engineers specializing in the cloud.

    Even infrastructure engineers who have only on-premises experience can apply their knowledge and experience of infrastructure to the cloud and further expand their knowledge.
    Based on the experience you have cultivated so far, let’s spread the knowledge and understanding of the cloud and gain experience.

    Even if you are an application engineer with no experience in infrastructure, if you can understand the code, it will be easier to catch up with the infrastructure, so you will be able to deepen your understanding of the cloud.

    Cloud engineers have high skills required such as knowledge and experience of infrastructure, knowledge of cloud and knowledge of various public services, but it can be said that it is a valuable career to aim for from the viewpoint of demand and future potential.

    How about aiming to become a cloud engineer by referring to the contents of this article?

     

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  • What kind of work and skills do you need to know if you become a cloud engineer?

    What kind of work and skills do you need to know if you become a cloud engineer?

    In this article, we will explain the outline, work content, required skills, demand, future potential, etc. of cloud engineers.

    In the last few years, the word “cloud” has become quite familiar to our lives.
    The use of cloud services such as online storage has become widespread among individuals, and cloud computing is steadily increasing, especially in companies.

    And the demand for cloud engineers to cope with this rapidly increasing “cloudization” is increasing, and it is also attracting attention as an engineer’s career.

    Let’s take a concrete look at cloud engineers.

     

    1. What is a cloud engineer?

    1.1 Born due to changes in the infrastructure environment accompanying the cloud era

    A cloud engineer is an engineer who designs, builds, operates, and maintains infrastructure such as servers and networks in a cloud environment .

    Cloud (Cloud Computing) is a form of using necessary functions at a destination connected to a network via the Internet.
    By using this cloud, “clouding” has the advantages of speeding up installation, reducing costs, and reducing operational load. In the past, infrastructure engineers and network engineers had to spend time on network and server installation and management. The work load such as is also lightened.

    Cloud engineers are often involved in cloud computing, and need to have knowledge and experience around infrastructure and be familiar with the cloud.

    From such a trend, it seems that infrastructure engineers are also required to acquire cloud knowledge and technology and become cloud engineers who are strong in “infrastructure + cloud”.

    It can be said that cloud engineers were born from the changes in the infrastructure environment accompanying the cloud era.

     

    2. What the cloud engineer does

    Cloud engineers are engaged in work in the following cloud environment *, and the work content may differ slightly depending on the environment.

    Types of cloud environment *
    Public cloud: Cloud service that can rent the infrastructure environment required for system operation
    Private cloud: Cloud that is built and operated exclusively by the company
    Hybrid cloud: Cloud environment that uses both public cloud and private cloud

    2.1 Infrastructure design on the cloud

    The important work of a cloud engineer is design work on the cloud.

    The public cloud does not require the physical design of your own data center, but we will design by taking advantage of the features and services of the cloud service you use .
    In the hybrid cloud, it is also necessary to design the connection part that connects the data center and the cloud, and it will be useful to have knowledge of the network because design information is added to routers and switches and router installation work is required. ..

    There are various cases such as migration work from on-premises to the cloud and launching a new system on the cloud, but in each case, it is important to design considering the high availability * and scalability * that are the characteristics of the cloud. Will be.
    In addition, each cloud service provides learning resources and tools to support your design.
    For example, on AWS, the AWS Well-Architected Tool allows you to check whether the design is in line with the optimal use of AWS.

     

    High Availability *
    Obtain higher reliability by keeping the system running without stopping due to a failure or the like.

    Extensibility *
    Obtain higher processing performance by distributing processing

    2.2 Building the cloud

    We will build a system environment on the cloud by using various functions provided by the cloud service.

    When creating a virtual server , you set the server location, network settings, load balancer for redundancy and load balancing, backup, and so on.
    In addition, cloud storage settings for data sharing and storage , virtual network construction, and selection of optimal database services are performed.

    In addition, infrastructure may be coded to simplify infrastructure management, change management, and improve efficiency by automating infrastructure construction .

    2.3 Cloud operation and maintenance

    As with on-premises, it is the job of the cloud engineer to operate and maintain after construction.

    We have tasks such as tuning for stable operation of various services, management of operating costs , version upgrades of OS / middleware / applications, patch application , authority management , and system monitoring .

     

    3. What skills are required of cloud engineers?

    cloud engineer

    3.1 Knowledge of public cloud services

    Engineers involved in cloud operations need not only basic knowledge of the cloud, but also knowledge and skills related to public cloud services such as AWS .

    Various cloud services provide certifications by level and specialty, as well as a wealth of training and learning sources .
    Qualifications allow you to systematically study services and architectures that you do not normally use, so it is a good idea to try them.

    In recent projects for cloud engineers, it seems that the number of businesses dealing with typical public cloud services such as AWS (Amazon Web Services) , Azure (Microsoft Azure) , and GCP (Google Cloud Platform) is increasing rapidly.
    Even if you have no work experience, holding a certification will be useful as a proof of knowledge and skills for such cases.

    3.2 Knowledge and skills of the latest cloud-related technology

    Cloud trends are constantly changing as companies become more “cloud-first”.

    One of the skills you need to know is to grasp and understand the latest trends in container technology, serverless computing, security and more.

     

    3.3 Knowledge and experience of cloud technology

    3.3.1 Server virtualization

    Virtual server , which is the most basic of the cloud environment Understand the procedures and optional functions for using a virtual server
    on the cloud, knowledge about server virtualization technology, and the advantages and disadvantages of server virtualization.

    3.3.2 Network virtualization

    It is a good idea to acquire the following knowledge and skills regarding network virtualization technology. -A technology that divides the network to enable the exchange of limited data in

    VLAN (Virtual LAN) -VPN (Virtual Private Network) Makes a private connection like a dedicated line to realize a network connection method with a high security level. Technology – NFV (Network Functions Virtualization) Technology that implements network functions as application software on a virtual server in order to flexibly respond to configuration changes of network devices.

    Also, for VPN services provided by major cloud services

    • Amazon VPC (Virtual Private Cloud)
    • Azure VPN Gateway
    • Google Cloud VPN

    And so on.

    3.3.3 Database technology

    Each cloud service provides various database services.

    • Free RDBMS such as MySQL and Postgre
    • Paid RDBMS such as Oracle, Microsoft SQL Server
    • Database services provided by each cloud service (Amazon RDS, Azure SQL Database, Google Cloud SQL, etc.)
    • NoSQL (database that is not a relational database)

    RDBMS is most often used, but for big data analysis and IoT, a distributed database such as NoSQL that distributes a large amount of data and performs high-speed processing is used.

    By understanding the characteristics of each database, acquiring knowledge, and selecting a database according to the purpose of use, you can build a faster and more scalable cloud environment.

     

    4. Demand and future potential of cloud engineers

    ■ The domestic market size of cloud services has grown to 1.9 trillion yen (FY2018)
    ■ The movement to move existing corporate systems to the public cloud is in full swing
    ■ AWS, Azure, GCP (Google) global vendors are becoming oligopolistic

    • (Reference source: MM Research Institute: From the 2019 Domestic Cloud Service Demand Trend Survey )

    According to the [Cloud Service Market Scale / Results / Forecast] report released by MM Research Institute, the movement to cloud the infrastructure of companies is accelerating, and it is expected to reach 4,475.4 billion yen in FY2011. It can be predicted that the demand for cloud engineers will increase as the number of cloud-related businesses and operations increases.

    In the public cloud services industry, AWS usage is more than half, and more and more companies are deploying Azure and GCP .

    In the future, each cloud service company will compete to evolve cloud technology by providing new services and parts used in the latest technologies such as machine learning and IoT, which are not limited to infrastructure.

     

    In addition, Gartner Inc. predicts that 80% of companies will close their data centers by 2025, and with the birth of technologies such as cloud services and IoT, the advantages of conventional on-premises data centers will be diminished. I point out that I will go.
    * Reference source: The Data Center is Dead (Gartner Blog Network) )

    From the above, it can be expected that the demand for cloud engineers will increase, and it can be considered that there is a future.

    5. Summary

    Nowadays, which is called the cloud era, many cloud engineers are needed and demand is increasing, but there is still a shortage of engineers specializing in the cloud.

    Even infrastructure engineers who have only on-premises experience can apply their knowledge and experience of infrastructure to the cloud and further expand their knowledge.
    Based on the experience you have cultivated so far, let’s spread the knowledge and understanding of the cloud and gain experience.

    Even if you are an application engineer with no experience in infrastructure, if you can understand the code, it will be easier to catch up with the infrastructure, so you will be able to deepen your understanding of the cloud.

    Cloud engineers have high skills required such as knowledge and experience of infrastructure, knowledge of cloud and knowledge of various public services, but it can be said that it is a valuable career to aim for from the viewpoint of demand and future potential.

    How about aiming to become a cloud engineer by referring to the contents of this article?

     

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  • What is a Linux engineer? Explains work content, annual income, qualifications, current demand, etc.

    What is a Linux engineer? Explains work content, annual income, qualifications, current demand, etc.

    A Linux engineer is an engineer who specializes in handling Linux among infrastructure engineers. This time, I would like to introduce the detailed work contents, the annual income that you actually get, and the future demand that you are worried about if you aim from now on.

     

    1. What is a Linux engineer?

    A Linux engineer is a type of infrastructure engineer, especially a server engineer, and refers to an engineer who specializes in using the OS called Linux.

    1.1 Linux engineer definition

    Now, I would like to explain the definition of Linux engineer in a little more detail.

     

    ■ A type of infrastructure engineer

    Linux engineers are occupations that belong to “infrastructure engineers” when classified into major categories. Infrastructure engineers are mainly in charge of IT infrastructure design, construction, management, and transportation, and the occupations called network engineers and server engineers fall under this category of infrastructure engineers. Among these server engineers, engineers who specialize in using Linux are called Linux engineers.

    What is an infrastructure engineer? The actual work content, skills, career, qualifications, and future potential are all disclosed!

     

    ■ Linux-specific human resources

    As mentioned above, a Linux engineer is an infrastructure engineer who specializes in Linux.

    Linux is currently the mainstream server OS . The reason is that it uses the GPL (General Public License) license system, which allows you to freely modify and redistribute it, that is, it can be used free of charge. Therefore, it is cheaper and more cost effective than installing a paid server OS.

    The fact that you can modify it more freely means that you can see the contents of the code. Therefore, when an error occurs, it has the advantage of being easy to identify where it occurred.

    In addition, since the configuration can be changed flexibly, many ultra-lightweight distributions are offered to take advantage of this. Therefore, it is easy to operate lightweight even with low performance equipment.

    5 Linux distributions! Introducing recommended apps!

    2. Roles and work contents of Linux engineers

    What is a Linux engineer? Explains work content, annual income, qualifications, current demand, etc. [Freelance engineer project information | Professional engineer]

    The work of a Linux engineer is as follows.

    Requirement definitionHear customer requests and consider what to configure
    designConsider which hardware to use and what settings to use
    constructionProcure and connect the actual machine and set according to the designed contents
    testMake sure it’s done as designed
    Operation / maintenanceMonitor the operating status and respond when trouble occurs

    2.1 Requirements definition

    First, we will hear from the customer about the required functions and performance, and consider what kind of system to build. We will consider the direction of Linux server design and aim to build a highly usable and highly reliable infrastructure. At this stage, a thorough pre-assessment and POC will be conducted to determine the applicability of OSS products, virtualization, and migration.

    2.2 Design

    Consider the standard configuration. If necessary, perform “security design” and “select driver and firmware versions” while being aware of compatibility with the hardware to be used. Also, the setting values ​​of various servers are decided here. In addition, it is necessary to make detailed decisions such as log management and other measures after the start of operation.

    2.3 Build

    We will procure the equipment and build it by actually connecting it. We will install his OS (Linux) and middleware (Apache and MySQL) on the server equipment according to the determined standard configuration. Here, it is necessary to firmly build a highly usable and highly reliable infrastructure.

    2.4 test

    Make a detailed check to see if it works as described in the design document.

    2.5 Operation / Maintenance

    We monitor the built server every day to see if it is operating normally, and if a failure occurs, we will promptly troubleshoot it.

    3. Skills required of Linux engineers

    What is a Linux engineer? Explains work content, annual income, qualifications, current demand, etc. [Freelance engineer project information | Professional engineer]

    The skills required of Linux engineers are not limited to Linux skills and knowledge. This section introduces the skills required for Linux engineers other than those related to Linux.

    3.1 Communication skills

    Communication skills are also important for smooth communication with customers and accurate requirement definition.

    IT infrastructure is being introduced not only in IT-related industries, but also in services in various fields and scales such as distribution and manufacturing. In other words, not all customers are knowledgeable about IT infrastructure and Linux, so the skills to extract and understand what customers really need are important.

    If there is a discrepancy in recognition at the requirement definition stage, it may cause service down or error later, and it may damage the customer.

    3.2 High level of understanding and development experience of various open source software (OSS)

    In order to meet the various needs of customers, it is also important to have knowledge and utilization skills of various open source software (OSS) other than Linux.

    3.3 Assessment

    In the work of Linux engineers, there are many projects such as migrating existing systems to Linux and developing systems that meet customer requirements by utilizing OSS.

    It is necessary to thoroughly perform an assessment * 1 and PoC * 2 in advance to determine whether OSS products are applicable, virtualizable, and migrateable. In addition, it is necessary to consider and formulate a migration method, evaluate the degree of impact on performance and operation due to virtualization, and formulate a work plan for each process.

    Therefore, knowledge that enables accurate assessment is required.

    * 1 Assessment: Evaluation of design and migration based on surveys and analysis conducted on the desk, etc.

    * 2 PoC (Proof of Concept): Proof of concept = verifying whether new concepts and ideas are feasible

    3.4 Business knowledge such as accounting and production control

    Especially for business applications, when the purpose is to develop applications such as accounting and production control, the skill to have business knowledge suitable for the site and to compile specifications from the user’s point of view as appropriate. You will need.

    3.5 Programming skills

    In order to design a system, even non-programmers need to have a good understanding of what programming can do.

    Programming skills are also important for Linux engineers, as there are occasions when immediate code correction is required in the field.

    4. Qualifications to help Linux engineers

    What is a Linux engineer? Explains work content, annual income, qualifications, current demand, etc. [Freelance engineer project information | Professional engineer]

    There are two qualifications that can be useful to Linux engineers: Each test has the following characteristics.

    • LinuC:
    Qualifications that emphasize being in line with business practices in USA

    • LPIC:
    An international exam that is qualified outside of USA

    4.1 LinuC

    LinuC is a test that places particular emphasis on being in line with the practices of Linux engineers in USA. Especially for those who want to become an infrastructure engineer in the future , this qualification is especially recommended because it gives them the knowledge necessary for practical work.

    Application receptionas needed
    test dayMonday-Saturday, excluding holidays
    Examination hallPearson VUE official test venues nationwide
    [ List of test venues (test centers) ]
    PrerequisitesLinuC-1: None
    LinuC-2: Have a valid LinuC-1
    LinuC-3: Have a valid LinuC-2
    Examination fee
    (tax included, per subject)    		LinuC-1: 16500 USD
    LinuC-2: 16500 USD
    LinuC-3: 16500 USD

     

     As of December 2016, it was announced that 180,000 people have been certified worldwide. This qualification is recommended for those who are also considering overseas .

    Application receptionas needed
    test dayMonday-Saturday, excluding holidays
    Examination hallPearson VUE official test venues nationwide
    [ List of test venues (test centers) ]
    PrerequisitesLPIC-1: None
    LPIC-2: Have a valid LPIC-1
    LPIC-3: Have a valid LPIC-2
    Examination fee
    (tax included, per subject)    		LPIC-1: 30,000 USD
    LPIC-2: 30,000 USD
    LPIC-3: 30,000 USD

     

    What kind of qualification is LPIC? I summarized from the difficulty level to the study method

    5. Estimated annual income for Linux engineers

    What is a Linux engineer? Explains work content, annual income, qualifications, current demand, etc. [Freelance engineer project information | Professional engineer]

    According to the announcement of average annual income.jp, the average annual income of all infrastructure engineers is 5.5 million USD.

    In particular, the demand for infrastructure engineers is increasing year by year, and as a result, the average annual income seems to be on the rise due to the shortage of engineers. In some cases, the maximum annual income exceeds 10 million USD.

    The average annual income of the above-mentioned “LPIC” holders is 4.5 million USDto 6.5 million USD.

    6. The future of Linux engineers

    What is a Linux engineer? Explains work content, annual income, qualifications, current demand, etc. [Freelance engineer project information | Professional engineer]

    If you want to become a Linux engineer, you may be wondering what will happen in the future even if it is good now. In this article, I would like to introduce the future potential of Linux engineers.

    6.1 Demand for infrastructure engineers is stable

    Recently, the number of cases where the system is built on the cloud instead of the actual machine has increased, but the demand for Linux is still high.

    This is because AWS (Amazon Web Service) , a popular cloud service, offers ” Amazon Linux ” that can be used in much the same way as a type of Linux called ” Cent OS ” . You can also build virtual machines using “Cent OS” on GCP (Google Cloud Platform).

    For these reasons, the demand for infrastructure engineers who can handle Linux will not decline in the future.

    Is the LAMP environment old? Explaining how to build a LAMP environment on AWS and future trends

    6.2 Linux is an important skill in the cloud era

    LinuC, which is a qualification for Linux engineers, was revised in 2023 to include not only physical servers but also on-premises and public cloud utilization.

    Previously, the scope of questions was limited to primitive commands used on physical servers, but after the revision, knowledge of integrated monitoring and automation tools is also required.

    In addition, such public cloud engineers are receiving increasing attention, and engineers with Linux expertise used there are also in increasing demand .

    The range of questions for LinuC will be revised from April 2023! We interviewed   about the difficulty level and the merits of acquiring qualifications.

    7. Summary

    Infrastructure engineers are a type of job that will continue to be in demand. By deepening your knowledge of Linux, you will be able to apply it more and it will be useful in any field. If you are aiming to become an infrastructure engineer, please learn about Linux as well.

     

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  • What is DevOps that you often hear? I will explain in an easy-to-understand manner

    What is DevOps that you often hear? I will explain in an easy-to-understand manner

    In recent years, when agile-like development methods have become widespread, the term “DevOps” has become well known.
    There is no strict definition for the word DevOps, so people may think differently and have a vague image.

    In this article, we will explain in an easy-to-understand manner the concept of DevOps and specific approaches.

    1. What is DevOps?

    Although the word DevOps has no clear definition, it is widely known with the following implications.

    DevOps is a concept that shows various efforts to increase the value of business by developing and operating a system in cooperation with a development team ( Dev elopment) and an operation team ( Operation s ) . So what was the idea behind DevOps in the first place?

    1.1 Purpose of DevOps

    The purpose of DevOps depends on the environment, but
    “Developers and operators work together to provide users with products and services quickly and continuously. ,” depending on the environment .

    In the first place, the background to the birth of DevOps is that with the development of the IT industry, the software development period has been shortened, and the need for flexible response to various changes has increased. As a result, the development side
    who wants to proceed with development one after another and develop new services, and the operation side who wants to maintain stable service operation. tend to conflict, and various problems are likely to occur.

    Therefore, based on the idea of ​​DevOps, there is a movement to increase the value of the business by solving the problems on the development side and the operation side and implementing various efforts to realize DevOps.

    The concept of DevOps and specific initiatives are described in the next section.

    2. DevOps concept

    DevOps is based on the following idea advocated by engineers of the photo sharing service “Flickr”.

     

    [DevOps concept]
    ◆ Respect Respect
    each other . Treating with compassion leads to smooth communication

    ◆ Trust all members
    involved in the Trust system Trust system

    ◆ Healthy attitude about failure Take a healthy attitude without blaming the
    other person for failure person for failure

    ◆ Avoiding Blame
    Do not blame the other person . Don’t blame it because mistakes can happen

     

    In order to realize DevOps, it is important for all team members to fully understand this idea, and for each and every one of them to be aware of it and act toward their goals.

    3. Specific DevOps Initiatives

    What is DevOps that you often hear? I will explain in an easy-to-understand manner [Freelance engineer project information | Professional engineer]

    The figure is an example of the process flow that realizes DevOps.

    As a concrete initiative, we will release the product in a short cycle, take in feedback from the user while the service is running, automate the series of flow from development plan to implementation, test, deployment, and speedily Make additional features and improvements.

    It is possible to proceed efficiently by using various tools suitable for executing each process.

    In the next section, we will give a brief explanation of the contents of each process and the tools that are often used to realize DevOps.

    3.1 DevOps process

    3.1.1 Plan (PLAN)

    Determine the requirements for the application to be developed, the execution plan of each process such as infrastructure and monitoring.

     

    3.1.2 Build (BUILD)

    It is a process of creating an executable file and a distribution package based on the developed source code.
    Often, the series of steps involved in this build is automated.

     

    3.1.3 CONTINUOUS INTEGRATION

    Continuous integration is “committing daily developed source code etc. to a configuration management file and automatically executing builds and tests “.

    Frequent builds and tests can help you detect bugs early, improve software quality, and reduce software release times.
    Continuous integration stands for CONTINUOUS INTEGRATION “CI” .

    There is also a technique called CONTINUOUS DELIVERY that automates the entire release process, not just build and test .

     

    3.1.4 Deploy (DEPLOY)

    Deploying simply means “making it ready for use” , which makes the files that are made executable by the build workable.
    Perform continuous integration and automatically deploy the built application to production if there are no problems.

     

    3.1.5 OPERATE

    Here, it is a process also called a “monitor” that monitors the performance of the server and application access, response time, and so on.
    Decide what to monitor while considering not to increase the load due to the accumulation of monitoring data.
    At the beginning of the introduction, narrow down the items to the minimum necessary.

    [Main items to be monitored]
    ◆ Server CPU usage rate, memory usage rate, number of processes, number of errors
    ◆ Confirmation of application processes, number of accesses, response time

     

    3.1.6 CONTINUOUS FEEDBACK

    Ensure that you continue to receive user feedback, such as by configuring a service desk that you can customize for your users.
    This allows you to quickly understand system requests and changes and reflect them in the development process.

    3.2 Tools used to achieve DevOps

    What is DevOps that you often hear? I will explain in an easy-to-understand manner [Freelance engineer project information | Professional engineer]

    Many tools are used to effectively implement DevOps.
    Each tool has various characteristics, and it is necessary to consider and determine the tool to be used depending on the software to be developed and the combination of multiple tools.

    3.2.1 Virtualization tools

    ◆ Docker

    It virtualizes the application execution environment and automatically configures the execution environment.
    A lightweight and disposable development environment can be prepared, so you can recreate and rebuild the server at any time.
    In addition, since the same thing as the production environment can be reproduced in the development environment, it is possible to test and check the operation in the development environment and reflect it in the production environment as it is.

    3.2.2 Configuration management tool

    ◆ Ansible
    ◆ Chef

    Manages and controls the configuration around the server and infrastructure.
    By automating operations such as construction, testing, and operation, efficiency can be improved and work time can be shortened.

    3.2.3 CI / CD tools

    ◆ Jenkins
    ◆ CircleCI

    Automatically run source code builds and tests.

    3.2.4 Monitor Tool

    ◆ Zabbix
    ◆ Nagios

    It automatically monitors servers and applications.

    3.2.5 Communication tools

    ◆ Slack

    In order to ensure smooth communication between the development team and the operations team, we use chat tools to communicate in an open situation.

    3.2.6 Test automation tool

    ◆ Selenium

    Automation of unit tests, integration tests, application tests, etc. enables improvement of test quality and effective utilization of human and system resources, leading to improvement of software quality.

    3.2.7 Source code / version control tools

    ◆ GitHub
    ◆ git

    Source code and version control are indispensable as the convenience of software increases and the number of frequent changes and additional functions becomes more complicated.

    4. Summary

    If DevOps can be realized well, it can be developed and operated efficiently, and it has the advantage of being able to provide better services to users quickly.

    In order for both sides to work efficiently beyond the boundaries of the development team and the operations team, everyone in the entire organization should clearly understand the purpose of “What is DevOps for?” Toward the same goal. It is important to keep it.
    With that attitude in mind, in order to bring DevOps to a level that can be incorporated into actual development and operation, it is good to first gradually understand the mechanism of DevOps and acquire knowledge of the tools to be introduced. Probably.

     

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  • What is DevOps that you often hear? I will explain in an easy-to-understand manner

    What is DevOps that you often hear? I will explain in an easy-to-understand manner

    In recent years, when agile-like development methods have become widespread, the term “DevOps” has become well known.
    There is no strict definition for the word DevOps, so people may think differently and have a vague image.

    In this article, we will explain in an easy-to-understand manner the concept of DevOps and specific approaches.

    1. What is DevOps?

    Although the word DevOps has no clear definition, it is widely known with the following implications.

    DevOps is a concept that shows various efforts to increase the value of business by developing and operating a system in cooperation with a development team ( Dev elopment) and an operation team ( Operation s ) . So what was the idea behind DevOps in the first place?

    1.1 Purpose of DevOps

    The purpose of DevOps depends on the environment, but
    “Developers and operators work together to provide users with products and services quickly and continuously. ,” depending on the environment .

    In the first place, the background to the birth of DevOps is that with the development of the IT industry, the software development period has been shortened, and the need for flexible response to various changes has increased. As a result, the development side
    who wants to proceed with development one after another and develop new services, and the operation side who wants to maintain stable service operation. tend to conflict, and various problems are likely to occur.

    Therefore, based on the idea of ​​DevOps, there is a movement to increase the value of the business by solving the problems on the development side and the operation side and implementing various efforts to realize DevOps.

    The concept of DevOps and specific initiatives are described in the next section.

    2. DevOps concept

    DevOps is based on the following idea advocated by engineers of the photo sharing service “Flickr”.

     

    [DevOps concept]
    ◆ Respect Respect
    each other . Treating with compassion leads to smooth communication

    ◆ Trust all members
    involved in the Trust system Trust system

    ◆ Healthy attitude about failure Take a healthy attitude without blaming the
    other person for failure person for failure

    ◆ Avoiding Blame
    Do not blame the other person . Don’t blame it because mistakes can happen

     

    In order to realize DevOps, it is important for all team members to fully understand this idea, and for each and every one of them to be aware of it and act toward their goals.

    3. Specific DevOps Initiatives

    What is DevOps that you often hear? I will explain in an easy-to-understand manner [Freelance engineer project information | Professional engineer]

    The figure is an example of the process flow that realizes DevOps.

    As a concrete initiative, we will release the product in a short cycle, take in feedback from the user while the service is running, automate the series of flow from development plan to implementation, test, deployment, and speedily Make additional features and improvements.

    It is possible to proceed efficiently by using various tools suitable for executing each process.

    In the next section, we will give a brief explanation of the contents of each process and the tools that are often used to realize DevOps.

    3.1 DevOps process

    3.1.1 Plan (PLAN)

    Determine the requirements for the application to be developed, the execution plan of each process such as infrastructure and monitoring.

     

    3.1.2 Build (BUILD)

    It is a process of creating an executable file and a distribution package based on the developed source code.
    Often, the series of steps involved in this build is automated.

     

    3.1.3 CONTINUOUS INTEGRATION

    Continuous integration is “committing daily developed source code etc. to a configuration management file and automatically executing builds and tests “.

    Frequent builds and tests can help you detect bugs early, improve software quality, and reduce software release times.
    Continuous integration stands for CONTINUOUS INTEGRATION “CI” .

    There is also a technique called CONTINUOUS DELIVERY that automates the entire release process, not just build and test .

     

    3.1.4 Deploy (DEPLOY)

    Deploying simply means “making it ready for use” , which makes the files that are made executable by the build workable.
    Perform continuous integration and automatically deploy the built application to production if there are no problems.

     

    3.1.5 OPERATE

    Here, it is a process also called a “monitor” that monitors the performance of the server and application access, response time, and so on.
    Decide what to monitor while considering not to increase the load due to the accumulation of monitoring data.
    At the beginning of the introduction, narrow down the items to the minimum necessary.

    [Main items to be monitored]
    ◆ Server CPU usage rate, memory usage rate, number of processes, number of errors
    ◆ Confirmation of application processes, number of accesses, response time

     

    3.1.6 CONTINUOUS FEEDBACK

    Ensure that you continue to receive user feedback, such as by configuring a service desk that you can customize for your users.
    This allows you to quickly understand system requests and changes and reflect them in the development process.

    3.2 Tools used to achieve DevOps

    What is DevOps that you often hear? I will explain in an easy-to-understand manner [Freelance engineer project information | Professional engineer]

    Many tools are used to effectively implement DevOps.
    Each tool has various characteristics, and it is necessary to consider and determine the tool to be used depending on the software to be developed and the combination of multiple tools.

    3.2.1 Virtualization tools

    ◆ Docker

    It virtualizes the application execution environment and automatically configures the execution environment.
    A lightweight and disposable development environment can be prepared, so you can recreate and rebuild the server at any time.
    In addition, since the same thing as the production environment can be reproduced in the development environment, it is possible to test and check the operation in the development environment and reflect it in the production environment as it is.

    3.2.2 Configuration management tool

    ◆ Ansible
    ◆ Chef

    Manages and controls the configuration around the server and infrastructure.
    By automating operations such as construction, testing, and operation, efficiency can be improved and work time can be shortened.

    3.2.3 CI / CD tools

    ◆ Jenkins
    ◆ CircleCI

    Automatically run source code builds and tests.

    3.2.4 Monitor Tool

    ◆ Zabbix
    ◆ Nagios

    It automatically monitors servers and applications.

    3.2.5 Communication tools

    ◆ Slack

    In order to ensure smooth communication between the development team and the operations team, we use chat tools to communicate in an open situation.

    3.2.6 Test automation tool

    ◆ Selenium

    Automation of unit tests, integration tests, application tests, etc. enables improvement of test quality and effective utilization of human and system resources, leading to improvement of software quality.

    3.2.7 Source code / version control tools

    ◆ GitHub
    ◆ git

    Source code and version control are indispensable as the convenience of software increases and the number of frequent changes and additional functions becomes more complicated.

    4. Summary

    If DevOps can be realized well, it can be developed and operated efficiently, and it has the advantage of being able to provide better services to users quickly.

    In order for both sides to work efficiently beyond the boundaries of the development team and the operations team, everyone in the entire organization should clearly understand the purpose of “What is DevOps for?” Toward the same goal. It is important to keep it.
    With that attitude in mind, in order to bring DevOps to a level that can be incorporated into actual development and operation, it is good to first gradually understand the mechanism of DevOps and acquire knowledge of the tools to be introduced. Probably.

     

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  • What is DevOps that you often hear? I will explain in an easy-to-understand manner

    What is DevOps that you often hear? I will explain in an easy-to-understand manner

    In recent years, when agile-like development methods have become widespread, the term “DevOps” has become well known.
    There is no strict definition for the word DevOps, so people may think differently and have a vague image.

    In this article, we will explain in an easy-to-understand manner the concept of DevOps and specific approaches.

    1. What is DevOps?

    Although the word DevOps has no clear definition, it is widely known with the following implications.

    DevOps is a concept that shows various efforts to increase the value of business by developing and operating a system in cooperation with a development team ( Dev elopment) and an operation team ( Operation s ) . So what was the idea behind DevOps in the first place?

    1.1 Purpose of DevOps

    The purpose of DevOps depends on the environment, but
    “Developers and operators work together to provide users with products and services quickly and continuously. ,” depending on the environment .

    In the first place, the background to the birth of DevOps is that with the development of the IT industry, the software development period has been shortened, and the need for flexible response to various changes has increased. As a result, the development side
    who wants to proceed with development one after another and develop new services, and the operation side who wants to maintain stable service operation. tend to conflict, and various problems are likely to occur.

    Therefore, based on the idea of ​​DevOps, there is a movement to increase the value of the business by solving the problems on the development side and the operation side and implementing various efforts to realize DevOps.

    The concept of DevOps and specific initiatives are described in the next section.

    2. DevOps concept

    DevOps is based on the following idea advocated by engineers of the photo sharing service “Flickr”.

     

    [DevOps concept]
    ◆ Respect Respect
    each other . Treating with compassion leads to smooth communication

    ◆ Trust all members
    involved in the Trust system Trust system

    ◆ Healthy attitude about failure Take a healthy attitude without blaming the
    other person for failure person for failure

    ◆ Avoiding Blame
    Do not blame the other person . Don’t blame it because mistakes can happen

     

    In order to realize DevOps, it is important for all team members to fully understand this idea, and for each and every one of them to be aware of it and act toward their goals.

    3. Specific DevOps Initiatives

    What is DevOps that you often hear? I will explain in an easy-to-understand manner [Freelance engineer project information | Professional engineer]

    The figure is an example of the process flow that realizes DevOps.

    As a concrete initiative, we will release the product in a short cycle, take in feedback from the user while the service is running, automate the series of flow from development plan to implementation, test, deployment, and speedily Make additional features and improvements.

    It is possible to proceed efficiently by using various tools suitable for executing each process.

    In the next section, we will give a brief explanation of the contents of each process and the tools that are often used to realize DevOps.

    3.1 DevOps process

    3.1.1 Plan (PLAN)

    Determine the requirements for the application to be developed, the execution plan of each process such as infrastructure and monitoring.

     

    3.1.2 Build (BUILD)

    It is a process of creating an executable file and a distribution package based on the developed source code.
    Often, the series of steps involved in this build is automated.

     

    3.1.3 CONTINUOUS INTEGRATION

    Continuous integration is “committing daily developed source code etc. to a configuration management file and automatically executing builds and tests “.

    Frequent builds and tests can help you detect bugs early, improve software quality, and reduce software release times.
    Continuous integration stands for CONTINUOUS INTEGRATION “CI” .

    There is also a technique called CONTINUOUS DELIVERY that automates the entire release process, not just build and test .

     

    3.1.4 Deploy (DEPLOY)

    Deploying simply means “making it ready for use” , which makes the files that are made executable by the build workable.
    Perform continuous integration and automatically deploy the built application to production if there are no problems.

     

    3.1.5 OPERATE

    Here, it is a process also called a “monitor” that monitors the performance of the server and application access, response time, and so on.
    Decide what to monitor while considering not to increase the load due to the accumulation of monitoring data.
    At the beginning of the introduction, narrow down the items to the minimum necessary.

    [Main items to be monitored]
    ◆ Server CPU usage rate, memory usage rate, number of processes, number of errors
    ◆ Confirmation of application processes, number of accesses, response time

     

    3.1.6 CONTINUOUS FEEDBACK

    Ensure that you continue to receive user feedback, such as by configuring a service desk that you can customize for your users.
    This allows you to quickly understand system requests and changes and reflect them in the development process.

    3.2 Tools used to achieve DevOps

    What is DevOps that you often hear? I will explain in an easy-to-understand manner [Freelance engineer project information | Professional engineer]

    Many tools are used to effectively implement DevOps.
    Each tool has various characteristics, and it is necessary to consider and determine the tool to be used depending on the software to be developed and the combination of multiple tools.

    3.2.1 Virtualization tools

    ◆ Docker

    It virtualizes the application execution environment and automatically configures the execution environment.
    A lightweight and disposable development environment can be prepared, so you can recreate and rebuild the server at any time.
    In addition, since the same thing as the production environment can be reproduced in the development environment, it is possible to test and check the operation in the development environment and reflect it in the production environment as it is.

    3.2.2 Configuration management tool

    ◆ Ansible
    ◆ Chef

    Manages and controls the configuration around the server and infrastructure.
    By automating operations such as construction, testing, and operation, efficiency can be improved and work time can be shortened.

    3.2.3 CI / CD tools

    ◆ Jenkins
    ◆ CircleCI

    Automatically run source code builds and tests.

    3.2.4 Monitor Tool

    ◆ Zabbix
    ◆ Nagios

    It automatically monitors servers and applications.

    3.2.5 Communication tools

    ◆ Slack

    In order to ensure smooth communication between the development team and the operations team, we use chat tools to communicate in an open situation.

    3.2.6 Test automation tool

    ◆ Selenium

    Automation of unit tests, integration tests, application tests, etc. enables improvement of test quality and effective utilization of human and system resources, leading to improvement of software quality.

    3.2.7 Source code / version control tools

    ◆ GitHub
    ◆ git

    Source code and version control are indispensable as the convenience of software increases and the number of frequent changes and additional functions becomes more complicated.

    4. Summary

    If DevOps can be realized well, it can be developed and operated efficiently, and it has the advantage of being able to provide better services to users quickly.

    In order for both sides to work efficiently beyond the boundaries of the development team and the operations team, everyone in the entire organization should clearly understand the purpose of “What is DevOps for?” Toward the same goal. It is important to keep it.
    With that attitude in mind, in order to bring DevOps to a level that can be incorporated into actual development and operation, it is good to first gradually understand the mechanism of DevOps and acquire knowledge of the tools to be introduced. Probably.

     

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  • What is OSS (Open Source Software)? Advantages and precautions when using

    What is OSS (Open Source Software)? Advantages and precautions when using

    OSS is free software that allows you to freely modify or redistribute the source code.
    Well-known OSSs include Java, PHP, and Python.
    In recent years, IT vendors have often participated, and OSS plays an important role in software development.
    This time, we will introduce the basic knowledge and attractiveness of OSS, and the merits of using it.

     

    What is Open Source Software (OSS)?

    Open Source Software is an abbreviation for OSS. Software whose source code is open to the public free of charge and whose use, modification, and redistribution are freely permitted.

    Contrary to OSS, software that has restricted access to or modified source code is called “proprietary software.” Generally, software source code is intellectual property, so it is sold with a license fee. Most commercial software is proprietary software and the source code cannot be modified.

    Typical OSSs include Linux as an operating system, MySQL as a database management system, Java as a programming language, Perl, PHP, Python, and Firefox as a web browser, and are widely used in various fields.
    Although OSS is free of charge, many are known to have high performance and high reliability, and companies often develop based on OSS for commercial use. In particular, OSS is indispensable for developers because there is much excellent software in the fields of programming languages ​​and development environments.

    The appeal of OSS and why it spreads

    Why is OSS so widely used in a wide variety of fields? I will explain the charm of OSS.

    OSS Open Source Software

    ● OSI license document

    OSS is free software, but it is not without terms and conditions. The Open Source Initiative (OSI), a non-profit organization that certifies OSS, manages OSS licenses. Whether the software is OSS depends on whether the license (Terms of Use) meets the “The Open Source Definition”. Once the license is approved by OSI, the software is officially recognized as open source and bears the “OSI Certification Mark”.

     

    ● OSS definition (10 items)

    The OSS definition has the following 10 items. Software with a license that complies with these is certified as OSS.

    1. 1. Freely allow redistribution
      2. Distribute the source code free of charge
      3. Allow distribution of derivative software
      4. 4. Make it clear which part of the source code is the author’s original code (the integrity of the author’s code)
      . Do not discriminate against individuals or groups
      6. Do not discriminate against the field of use
      7. The rights associated with the program shall be equally granted to all redistributors (license distribution)
      8. Do not license only for specific products
      9. Do not license to limit other software
      10. License is technically neutral
    • Reference
      https://opensource.org/osd

     

    ● Reasons for the spread of OSS

    OSS has the feature that anyone can freely improve and redistribute. As a result, users around the world cycle through the process of finding, improving, and fixing bugs in the source code. As a result, the stability of the software and the ability to develop high-quality products at a low cost are the reasons why OSS is widespread.
    In this way, the idea of ​​advancing development while disclosing product content and information is called the “open source movement.”

     

    Benefits of using OSS

    Not only is it free of charge, but there are other benefits to using OSS. Here, we will introduce the advantages of using OSS as a user.

     

    ● Reliable

    Since the source code is open to the public, it is reliable because it is possible to constantly check for malicious programs and vulnerabilities. Even if a vulnerability is discovered, it is characterized by quick correction.

     

    ● High stability

    Proprietary software may be terminated or discontinued due to the circumstances of the provider. However, OSS can continue maintenance as long as there are users. Therefore, stable use can be expected for a long period.

     

    ● Cost reduction is possible

    Since OSS is free of charge, you can expect integrated cost reduction. Not only the initial cost but also the license management after an introduction and the regular replacement cost can be reduced, so it will be useful in software development.

     

    Precautions when using OSS

    I will explain the knowledge that you should know when dealing with OSS.

     

    ● Must be license compliant

    When introducing OSS, it is important to confirm the target license type. OSS is licensed individually for each software. Users are required to use the license in compliance with the license, so be sure to check the OSS license before using it.
    In a word, there are various types of licenses, and it is said that there are more than 70 types. For example, when redistributing the software, it depends on the software, such as whether to require the release of the source code and whether to indicate that the source code has been changed. Some licenses limit the purpose of use in the form of “free for research purposes and paid for commercial use”. Therefore, it is important to understand the contents before use.

     

    ● Not “free = OSS”

    OSS is released free of charge, but not all software available for free is OSS, unless specifically stated as “OSS”. If it is not OSS, you cannot freely modify or redistribute it even if it is free of charge, so be careful when using it.

     

    ● Derivatives are also OSS

    Derivative works that have been improved and redistributed from OSS are called “derivatives”. Among the OSS license types, the one that requires special attention is the license called “copyleft type”. Copyleft is a term that expresses the idea that “copyleft should be available to everyone, including secondary works while retaining copyright.” GPL, LGPL, CPL, etc. are known as typical copyleft licenses.
    The copyleft OSS license states that “improved and redistributed derivatives must be distributed under the same conditions as the original work.” For example, if a developer improves his software based on OSS, he is not free to change to other licenses or terms. In addition, if you modify an OSS that has a copyleft license, you are obliged to publish the source code.

     

    High reliability and versatility are the appeals of OSS

    OSS has been developed with high quality and excellent reliability and stability because it can be used secondarily by anyone, and is used by many people.
    Another advantage of OSS is that it can be freely customized according to your company’s services and is more versatile than existing software.
    In recent years, companies have also developed their products based on commercially available OSS.
    OSS is indispensable for software development. When using OSS, make sure you understand the license form and contents before using it well.

     

    How to smoothly find the best supplier for system development

    Are you having trouble choosing a system development company?
    Japan’s largest system development company portal site ” Order Navi ” will thoroughly support the selection of the optimum development company that is close to your company by experts with abundant achievements.
    Introductory record: 10,600 (as of January 2021)

    Finding a subcontractor is an important task that will influence the future of business. However, there are endless questions and worries, such as “

    I don’t know what to look for …”
    , “Where is the subcontractor that suits my company …?”, “I’m
    worried about the cost …”

    There are many.
    Ordering Navi is the best partner to find and select the best outsourcing to help your company.
    In addition to the system companies listed in this article, we can introduce the most suitable development companies!

     

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