Linux home servers are not as common as other servers. One should note that Linux home servers are more likely to be used as a work station rather than a simple server.
Apache is the world's leading and most commonly deployed web server. The majority of the web sites on the Internet run on an Apache server,
The ability to run a GUI is commonly called X11 with different implementations. The most popular in the Linux world is called X.Org Server. There are several but the most popular it seems are Gnome, KDE, and Xfce.
The Apache web server.
The apache http server
Ubuntu Server, RHEL, CentOS, SLES, and Debian.
It's most commonly used for games and watching videos on Youtube. You can visit their website for a complete list of activites they are cablable of.
The Apache Foundation is most widely known for their Hypertext Transfer Protocol server.
Most Linux distributions will come with SSH preinstalled. If it's not, install the package "ssh".
Just about anything. But most people deploy them as web servers.
Most of the BANKS works on Mainframes which generally uses UNIX operating systems. But a BANK can use UNIX and flavours of LINUX (which is a UNIX flavor) and Windows Server ...
There are really to many to accurately list Generally Linux is deployed for most dedicated servers and host and array of different things the most common of which is LAMP (Linux Apache MYSQL PHP) which is the Linux based Web Server package
Red Hat Enterprise Linux 5.3, 5.4/ commonly linux.