Above and beyond, install the same distro you are using on the server as your primary operating system at home. There is no better way to learn something than

Above and beyond, install the same distro you are using on the server as your primary operating system at home. There is no better way to learn something than to surround yourself by it and work at it repeatedly. Linux on the desktop will get you comfortable enough on your server in a very quick way. Oh, and above and beyond, don't even think about trying to mess with things that will require a reboot quite yet. Wait until you are much more capable. I've been using Linux for 15 years and OpenBSD for 8, and I still get cold palms when working remotely on my server if it requires a reboot!