Linux is an OS, that isn't that popular for desktop machines, but is among the most commonly used OSs for servers. It is 100 % free, so you shall not need to pay any license charges as part of your hosting payments. Linux is additionally thought to be the most secure Operating System available and thanks to the permissions which files have along with the file types that can be run, virus files that can infect a regular personal computer will simply not be executed on a Linux-based server. In addition, the OS is free, so it can be modified without any limits, so as to meet the needs of the website hosting company and their customers. This also means that unnecessary software packages may be removed to make the OS lighter and much faster, which could directly contribute to much better hosting server performance. A lot of Linux machines have the Apache web server set up on them, since this program is also 100 % free, quick and reliable. It is the most frequently used web server out there and is part of the LAMP bundle that lots of script applications, including WordPress and Joomla™, require. LAMP is an abbreviation for Linux, Apache, MySQL and PHP.