A Domain Controller allows password authentication throughout a network. What this means is that your password is checked on the central server no matter which machine you log in from. A Domain Controller can also control access to files and directories which can be setup so users have access to all their files no matter which machine they log in from. This also makes adding and removing users among other things much easier as all that is required is a change on the Domain Controller itself rather than every machine on a network.
Frequently Asked Questions
Can I use a Windows desktop with a Linux Domain Controller?
Yes, Both Windows and Linux can be setup to use a Linux Domain Controller.
Can I use a Linux desktop with a Windows Domain Controller?
Yes, both Windows and Linux can be setup to use a Windows Domain Controller.
What about a environment with both Windows and Linux desktops?