Need to migrate the Cpanel server to a new subnet

ed.kalk

Well-Known Member
Jun 19, 2008
76
0
56
Minneapolis, MN
I've already added a second IP to the eth1 interface and the system says that there is a new IP available.

I'm thinking that the next step is to switch the DNS server IP to the new IP. I'm thinking that the step after that is to switch each domain over to the new IP. I'm thinking that the step after that is to remove the old IP.

What is the best way to do this? Can it be done with 0 downtime?
Am I wrong in thinking this whole thing can be done?
 
Last edited:

DaveUsedToWorkHere

Well-Known Member
Dec 28, 2001
689
1
318
You can use the IP Migration Wizard in WHM to accomplish this. It's a two step process to eliminate downtime. In the first part, you add the new IPs and migrate your sites. Then, after DNS propagates with the new IP info, you can complete the process and remove the entries for the old IPs.

This will only work if you can have all the IPs bound to the server during the transition though. If you have to dump the old IPs, you can migrate but DNS will take a few hours to catch up.