Open source software (OSS) refers to a software development model that promotes the sharing and collaboration of a software’s source code. In this model, the source code is made freely available to the public, allowing anyone to view, modify, and distribute it. OSS is typically developed in a collaborative manner by a community of developers who work together to improve and enhance it.

At its core, the concept of open source fosters transparency, community-driven development, and innovation. Unlike proprietary software, which is owned and controlled by a single entity, OSS empowers users to access, modify, and distribute the software according to their needs. This approach has led to the emergence of a vast ecosystem of open source projects across a wide range of domains.

Advantages of OSS

OSS offers numerous advantages that have contributed to its widespread adoption and popularity across various industries. Understanding these advantages can help individuals and organizations make informed decisions when considering the use of OSS in their projects.

By leveraging the power of open source, individuals and organizations can benefit from a rich ecosystem of software and contribute to the collective knowledge and innovation of the global open source community.


One of the most significant advantages of OSS is its cost-effectiveness. Typically available for free, it eliminates the need for licensing fees. This accessibility allows organizations to allocate their resources more efficiently, enabling cost savings that can be invested in other areas of their operations.

Transparency and Auditability

OSS provides transparency by making the source code openly available for inspection. This transparency enables users to understand how the software functions and to verify its security and integrity. Organizations can conduct code audits, identify and address vulnerabilities, and ensure that the software meets their specific requirements. Openness also encourages diverse contributions, fostering innovation and knowledge sharing.


The aforementioned transparency and openness to inspection can also enhance security. With access to the source code, developers can scrutinize it for vulnerabilities, ensuring a more robust product. Additionally, the inherently larger community of an open source project means faster bug identification and patching. Regular updates from the community can also help combat emerging threats promptly.  

Flexibility and Customization

OSS offers flexibility and customization options that proprietary software often lacks. Users have the freedom to modify and adapt the source code to suit their unique needs, allowing for greater flexibility in implementing specific features or addressing specific requirements. This level of customization empowers organizations to tailor the software to their workflows, maximizing efficiency and productivity.

Rapid Innovation and Collaboration

Open source projects foster a collaborative environment that encourages innovation and knowledge sharing. A global community of developers and contributors can freely contribute their expertise, ideas, and enhancements to the software. This collaborative approach leads to rapid innovation, frequent updates, and continuous improvement of the software’s features, functionality, and performance.

Wide Support and Knowledge Base

OSS often benefits from a large and diverse community of users and developers. This extensive support network provides access to forums, mailing lists, online communities, and documentation that offers assistance and guidance. Users can benefit from the collective knowledge and experience of the community, making it easier to troubleshoot issues, find solutions, and learn from others.

Vendor Independence

OSS reduces dependence on specific vendors or providers. Organizations are not tied to a single software vendor for support nor maintenance. Users have the freedom to choose from multiple service providers, consultants, or in-house resources to meet their support and customization needs. This independence allows for greater flexibility in managing software solutions and reduces the risk of vendor lock-in.

Extensive Ecosystem and Integration Opportunities

OSS often has a vibrant ecosystem of complementary tools, libraries, and extensions that enhance its functionality and integration capabilities. This ecosystem enables seamless integration with other open source or proprietary solutions, providing users with a wide range of options for expanding the capabilities of their software and optimizing their workflows.

Long-Term Viability and Continuity

OSS projects tend to have a higher chance of long-term viability and continuity. The collaborative nature of open source development reduces the risk of a single point of failure. Even if a specific project becomes inactive or abandoned, the availability of the source code allows the community or other stakeholders to fork the project and continue its development independently, ensuring the longevity of the software.

Government Mandates for Use of OSS

These advantages of OSS are so significant that many governments implement policies or mandates to promote the use of OSS within their organizations. Here are a few notable government examples:

  • United States – The Federal Source Code Policy, issued in 2016, requires federal agencies to release at least 20% of newly developed custom code as open source. Additionally, the Department of Defense (DoD) has released the DoD Open Source Software Policy, which encourages the use of OSS and contributes to the open source community.
  • United Kingdom – The UK government has embraced OSS as part of its Digital Service Standard. The Government Service Design Manual encourages the use of open standards and open source solutions to enhance interoperability, transparency, and cost effectiveness. Several government agencies, including the Government Digital Service (GDS), actively contribute to open source projects and share their code with the public.
  • France – The French government has released guidelines that recommend considering OSS as a priority in public procurement processes. The Ayrault Circular, issued in 2012, emphasizes the importance of open standards and open source solutions in ensuring interoperability, competition, and cost optimization.
  • Germany – The Digital Agenda 2014-2017 includes a commitment to prioritize open source solutions in public procurement. The German city of Munich gained global attention for its “LiMux” project, which aimed to migrate its IT infrastructure to OSS. Although there have been some changes in the recent years, open source continues to be part of the IT strategy in various German government agencies.
  • Brazil – In 2003, Brazil launched the Software Livre Brasil initiative, which promotes the use of OSS in public administration. Brazil’s Federal Government Framework for the Adoption and Use of Free Software, issued in 2018, encourages government agencies to prioritize open source solutions to ensure security, cost savings, and technological sovereignty.
  • India – The Policy on Adoption of Open Source Software for Government of India was released in 2015 and urges government agencies to consider open source solutions as a preferred option. The policy emphasizes the need for cost savings, promoting local innovation, and avoiding vendor lock-in.
Risks of OSS

It is important to recognize that there are risks associated with using OSS. Understanding these risks can help individuals and organizations make informed decisions when utilizing OSS in their projects. With proper understanding, planning, and risk management strategies, organizations can leverage the power of OSS while mitigating potential challenges.

Security Vulnerabilities

While the open nature of OSS can enhance security through peer review, it also exposes the source code to potential scrutiny by malicious actors. If security vulnerabilities are discovered and not promptly addressed, they can pose risks to the software and its users. It is crucial for open source projects to have active security practices in place, including vulnerability management, code audits, and timely security updates.

Lack of Support and Documentation

Open source projects may have varying levels of support and documentation. Unlike proprietary software that often provides dedicated support teams, open source projects may rely partially or exclusively on community-driven support channels. Depending on the project’s popularity and community engagement, users may encounter challenges in finding timely assistance or comprehensive documentation for troubleshooting issues.

Limited Control and Customization

While OSS provides freedom to modify and customize the code, it also means that users bear the responsibility for maintaining and enhancing the software to meet their specific requirements. This can require technical expertise, resources, and ongoing efforts to ensure compatibility with future updates and changes in the software ecosystem.

Compatibility and Integration Challenges

OSS may face compatibility and integration challenges with other proprietary or non-standard software. While efforts are made to ensure interoperability, it is essential to consider the potential complexities that can arise when integrating different software components. Thorough testing and understanding of dependencies are necessary to mitigate these risks.

Quality Control and Maintenance

The decentralized nature of open source projects can sometimes result in inconsistencies in quality control and maintenance practices. Not all open source projects have rigorous testing, quality assurance processes, or dedicated maintenance teams. Users relying on OSS should assess the project’s maturity, community activity, and ongoing maintenance efforts to gauge its stability and long-term viability.

Legal and Licensing Considerations

OSS is often governed by specific licenses that define the rights and responsibilities of users and developers. Some licenses, such as the GNU General Public License (GPL), impose certain obligations like sharing modifications or derivative works. Failure to comply with license terms can result in legal consequences. It is crucial for organizations to understand the licensing requirements of the OSS they use and ensure compliance with any applicable licenses.

Project Abandonment

Open source projects rely on the voluntary contributions of developers and community members. In some cases, projects may become inactive or abandoned due to lack of resources, changing priorities, or other factors. Users relying heavily on such projects may face challenges in receiving ongoing support or updates, which can impact the stability and long-term viability of their own projects.

How to Make OSS More Secure

Securing OSS involves adopting various practices and strategies to mitigate potential vulnerabilities and enhance the overall security of the software. It is important to foster a security-focused mindset, maintain a proactive approach, and collaborate with the open source community to continually improve the security of the software and protect the interests of its users.

Here are some key practices and strategies to consider:

  • Software bill of materials (SBOM) – ­Create an SBOM, which is a document that provides a detailed inventory of the components and dependencies used in a software project. Your SBOM should list all the software components, libraries, frameworks, and their respective versions that are utilized within the software. When it comes to OSS, an SBOM plays a crucial role in ensuring transparency, security, and compliance.
  • Active security practices – Implement proactive security practices throughout the software development lifecycle. This includes conducting regular security audits, code reviews, and penetration testing to identify and address potential vulnerabilities. Establishing a dedicated security team or engaging external security experts can provide specialized expertise in identifying and mitigating security risks.
  • Prompt security patching – Stay vigilant about security vulnerabilities and apply patches and updates promptly. Monitor security advisories and notifications from the open source community or project maintainers. Timely application of security patches helps protect the software from known vulnerabilities and exploits.
  • Secure coding standards – Adhere to secure coding practices when developing or contributing to OSS. Follow established secure coding standards and guidelines to minimize common coding mistakes and vulnerabilities. This includes input validation, proper error handling, secure authentication and authorization mechanisms, and secure data storage practices.
  • Responsible disclosure – Establish clear channels for responsible disclosure of security vulnerabilities. Encourage users and security researchers to report vulnerabilities to the project maintainers in a responsible and coordinated manner. Respond promptly to vulnerability reports, assess their impact, and provide timely fixes or mitigations to protect users.
  • Security testing and auditing – Conduct comprehensive security testing and audits on the software. This includes regular vulnerability scanning, penetration testing, and security-focused code reviews. Use automated security testing tools to identify common vulnerabilities, such as SQL injection, cross-site scripting (XSS), or insecure direct object references. Regular security audits help identify and address potential security weaknesses.
  • Secure dependencies and libraries – OSS often relies on third-party libraries and dependencies. Ensure that these dependencies are up to date and free from known security vulnerabilities. Regularly monitor and update the versions of dependencies used in the software, as outdated or vulnerable dependencies can introduce security risks.
  • Secure configuration and deployment – Pay attention to secure configuration and deployment practices. Follow industry best practices for server hardening, secure network configurations, and encryption of sensitive data. Leverage tools and frameworks that automate secure deployment practices to minimize human error and reduce the risk of misconfigurations.
  • Security education and awareness – Promote security education and awareness among developers, contributors, and users of the OSS. Provide training or resources on secure coding practices, secure configuration, and common security pitfalls. Foster a security-conscious culture within the open source community to ensure that security is prioritized at all levels.
  • Engage with the community – Engage with the open source community surrounding the applicable software. Participate in discussions, mailing lists, or forums to stay informed about security-related topics, best practices, and emerging threats. Collaborate with other community members to share knowledge, address security concerns, and collectively work towards improving the security of the software.
  • Regular security assessments – Conduct periodic security assessments and audits of the software. This can involve engaging third-party security firms to perform comprehensive security assessments and penetration testing. Regular assessments help identify new vulnerabilities or emerging threats and ensure that the software’s security measures remain robust.
Benefits of a Support Contract for OSS

In the case of OSS, a support contract is a formal agreement between a contributor and organization that outlines the terms and conditions for assistance and maintenance, such as technical support or bug fixes. Having a support contract for OSS provides several benefits that can be crucial for organizations that rely on open source solutions. These benefits ensure that organizations can effectively and confidently use OSS, mitigate risks, and maximize the value they derive from their technology investments.

Expert Assistance

A support contract ensures access to a team of experts who specialize in the OSS in question. These experts have in-depth knowledge of the software’s architecture, functionality, and best practices. When encountering technical issues or challenges, organizations can rely on this expertise to receive prompt and reliable assistance. Support contracts often include dedicated support channels, such as email, phone, or ticketing systems, ensuring prompt responses and resolution of problems.

Timely Bug Fixes and Updates

OSS undergoes continuous development and improvement. With a support contract, organizations receive timely bug fixes, patches, and updates for the software. This ensures that critical issues are addressed promptly, minimizing any negative impact on operations. Having access to the latest versions and updates helps organizations benefit from new features, performance enhancements, and security improvements.

Security and Vulnerability Management

Security is a significant concern for organizations using any software. With a support contract, organizations gain access to critical security updates and vulnerability management. The support team monitors security threats and releases patches or updates to address any identified vulnerabilities promptly. This proactive approach helps mitigate security risks and ensures a more secure environment for the software.

Troubleshooting and Problem Resolution

A support contract provides a reliable mechanism for troubleshooting and problem resolution. Organizations can seek assistance in identifying the root causes of issues, diagnosing problems, and finding appropriate solutions. The support team can guide organizations through the resolution process, offering expertise and recommendations to overcome any obstacles.

Service Level Agreements (SLAs)

Support contracts often include service level agreements (SLAs) that define response times, resolution times, and other performance metrics. These SLAs set clear expectations and ensure that the support team is committed to delivering quality service within specified timeframes. SLAs provide a level of assurance and accountability, ensuring that organizations receive fast support and minimize any disruption to their operations.

Compliance and Legal Assurance

OSS may have specific licensing requirements and obligations. With a support contract, organizations can ensure compliance with licensing terms, understand any usage restrictions, and receive guidance on legal considerations related to the software. This helps mitigate the risk of unintentional non-compliance and potential legal issues.

Peace of Mind and Risk Mitigation

Having a support contract provides peace of mind to organizations relying on OSS. Knowing that expert assistance is just a call or email away reduces anxiety and allows organizations to focus on their core business operations. A support contract mitigates the risk of prolonged downtime, data loss, or operational disruptions by providing access to reliable support when it is needed the most.

Knowledge Transfer and Training

Support contracts can include knowledge transfer and training components, or this may be accomplished through a professional services engagement with the vendor. These teams can provide guidance, documentation, and training resources to help organizations effectively use and manage the OSS. This empowers organizations to leverage the software’s full potential, enhance their internal capabilities, and reduce dependency on external support for routine tasks or minor issues.


OSS is a collaborative development model that promotes transparency, flexibility, and innovation by sharing and freely distributing source code. It offers cost-effectiveness, customization options, and a wide support network, making it popular across industries. However, there are risks associated with OSS, including security vulnerabilities, compatibility challenges, and project abandonment. To mitigate these risks, several solutions can be beneficial, including proactive security practices, engaging with the open source community, and adopting support contracts. Support contracts can help you mitigate OSS risks through expert assistance, bug fixes, security management, troubleshooting, and compliance assurance.

How Can NGINX Plus Help?

NGINX is proud to offer the following resources to help you get started or continue on your open source journey.