Linux is an OS, that isn't that widely used for desktop machines, but is among the most frequently used OSs for web servers. It is totally free, so you shall not have to pay any license charges as part of your web hosting payments. Linux is furthermore thought to be the most reliable OS available and thanks to the permissions which files have along with the file types that can be run, virus files which could infect a regular PC shall simply not be executed on a Linux-based web server. Also, the Operating System is 100 % free, so it could be customized with no restrictions, so as to suit the requirements of the hosting provider and their clients. This also means that unneeded software packages can easily be removed to make the Operating system lighter and quicker, that may directly result in far better server performance. Many Linux machines have the Apache web server installed on them, because this program is also free, quick and secure. It's the most frequently used web server available and is an element of the LAMP bundle that a lot of script apps, like WordPress and Joomla™, need. LAMP is an abbreviation for Linux, Apache, MySQL and PHP.
Stable Linux with Apache in Shared Website Hosting