Linux is an OS, that is not that popular for desktop machines, but is one of the most widely used OSs for servers. It is totally free, so you shall not have to pay any license charges as part of your website hosting payments. Linux is furthermore thought of as the most risk-free Operating System available and because of the permissions that files have along with the file types that can be run, virus files which can easily infect a standard computer will simply not be executed on a Linux-based hosting server. Additionally, the Operating System is freeware, so it can easily be altered with no limitations, so as to match the needs of the website hosting company and their clients. This also suggests that unneeded software packages can easily be removed to make the Operating system lighter and quicker, that can directly contribute to a lot better hosting server performance. Many Linux machines have the Apache web server set up on them, because this application is also totally free, fast and stable. It's the most frequently used web server around and is part of the LAMP bundle that lots of script applications, such as Joomla™ and WordPress, require. LAMP is an abbreviation for Linux, Apache, MySQL and PHP.
Stable Linux with Apache in Shared Web Hosting