Mail Administrator wrote:
Dear All,
I do have a centos 5 srver running the following. the server is a dell pc with standard config
1 gb ram 120 gb ide hdd 3.2 ghz cpu NIC
Mail server Dns Server webmail Mailscanner
now i would like to have another server like mirroring this server .. so incase there is any problem with this server the other server is always online and the problem server could be fixed without our users gettin affected
apprecite if anybody can help giving some clues or is there any software avaliable. also is the hardware in both servers have to be identical or it can be different
The easiest way to make that happen is to use a product called DRBD
I say easy, but the initial setup will be fairly hard as you will need to link all the things you want to fail over into a partition that you can then MIRROR to another machine (if you use drbd).
Here is drbd info:
http://www.drbd.org/users-guide/index.html
Thanks, Johnny Hughes