Linux

Linux is an open source operating system that is extremely popular, particularly among professional users. In fact, Linux is used to power a large number of web servers on the Internet, together with the Apache web server.

Linux is open source. This means that the Linux source code is freely available. People can also download Linux binaries and use them free of charge. Skilled programmers can modify the Linux source code. However, the Linux licensing agreement stipulates that modifications to Linux must be made available free of charge to all users. Thus, if you make modifications to the Linux code, then you must license this to others under the same terms and conditions as the original Linux licensing terms. This has been done in order to ensure that modifications will benefit the entire Linux community.

While Linux can be downloaded free of charge, many people prefer to use a commercial Linux distribution. These are generally available at a low cost and come with additional services, such as support and manuals. Commercial Linux distributions may also come with a warranty.

There is a very large installed base of Linux computers throughout the world. This is supported by a massive Linux community. There are a large number of professionals that provide Linux-related products and services. So if you operate a Linux server, you should not have problems finding a Linux professional who can help you with maintenance.