Changing server IP

[DewKnight]

Hello,

I've done a bunch of searching but can't find some exact steps on what I need to do for changing the server IP

Basically I got this server with 4 IP addresses. I want to change the main IP to the third one as it's easier to remember.

I've had the license changed to this new IP already. I have changed the IP address in the basic setup. I've also changed the nameserver IP addresses to use IP numbers 2 & 3. For some reason some places. I've updated eth0 to the new IP.

For some reason I'm just getting some odd issues. /~user/ links don't work from the IP. I think after the reboot most everything is good. I just want to make sure that I have changed everything that I need to for changing this IP.

EDIT: Actually I think I fixed the /~user/ links, but I still want to make sure everything else was updated properly.

[DewKnight]

I believe that I got everything updated. the NS are mostly working, and it looks like everything uses the new IP.

The only problems I see now is there is no zone file for the new hostname (while there is one for the old). Not sure if this is a problem.

I also see one error that one of my nameservers isn't responding. I'm fairly sure that everything is correct. I've done a bunch of searching and I'm not sure how to fix this one.

You can see the error here: intoDNS: dewknight.com - check DNS server and mail server health

ERROR: One or more of your nameservers did not respond:
The ones that did not responded are:

[cPanelDon]

The only problems I see now is there is no zone file for the new hostname (while there is one for the old). Not sure if this is a problem.

Does the hostname have an A record in the DNS zone of the sub-domain's parent domain? For example, if the hostname is server.domain.tld, does "server" exist as an A record in the zone of "domain.tld"?

As long as there is an A record for the hostname then it should not require a separate DNS zone.

I also see one error that one of my nameservers isn't responding. I'm fairly sure that everything is correct. I've done a bunch of searching and I'm not sure how to fix this one.

You can see the error here: intoDNS: dewknight.com - check DNS server and mail server health

Is the affected name server IP on the same system as the other name server that is not affected?

Is there a firewall on the server IP address specified in the error?

If there is a firewall in-use, I would temporarily disable it and then check to see if the issue is still present. I would also consult with the upstream data center as they can verify if the IP address is usable and correctly routed to (and correctly configured on) the server.

[DewKnight]

Hi,

Thanks for the reply. There is an A record for the hostname, so all should be good there.

I disabled the firewall and had the same issue. The NS are on the same server. The IP that is showing the error used to be the server IP, until I switched to the other IP. I'm guessing that has something to do with why it's not working properly.

I will check with the DC. If anybody has successfully changed server IP's in the past, I would appreciate a list of files updated when they did it

Thanks again.