Linux is an OS, that isn't that popular for desktop machines, but is among the most frequently used OSs for web servers. It is totally free, so you won't need to pay any license fees as part of your website hosting payments. Linux is additionally regarded as being the most secure OS around and because of the permissions that files have as well as the file types that can be run, virus files that could infect a normal PC will simply not be executed on a Linux-based web server. Also, the Operating System is freeware, so it can easily be modified without any limitations, so as to match the needs of the hosting company and their clients. This implies that unwanted software packages could be removed to make the Operating system lighter and quicker, which could directly result in a lot better hosting server performance. Many Linux machines have the Apache web server installed on them, due to the fact that this program is also free, quick and reliable. It's the most frequently used web server available and is part of the LAMP bundle that a lot of script applications, like WordPress and Joomla, require. LAMP is an abbreviation for Linux, Apache, MySQL and PHP.