Redundant Linux Servers
I'm looking for some information to do redundant SuSE servers. I currently have a box running Squid, DHCP, and DNS and would like to setup a redundant server in case the main server fails such as hard drive or power supply. Can anyone point me in the right direction or give me some pointers on this subject?
I like the redundancy as far as any changes like in config and users to be pretty much instant if possible. Automatic fail over would be perferred but I'd settle for manual.