1 DC in domain - want to change IP 1

[Stevehewitt]

Hi Guys,

We have two servers in a forest. There's 1 DC and the only members is the other server.

Currently these servers are in a IP network that is planning on being destroyed. Essentially, I need to move these two server (one of which is a DC) into an new IP network with new IP addresses.

I'm trying to find out if chaning the IP on the only DC in a forest will make any difference or problems.
Also, the forest has a AD trust with another forest - which this need to be re-created?

Thanks,




Steve.

"They have the internet on computers now!" - Homer Simpson

 

[NJForensics]

Steve-

The only problem that you could potentially run into is if your server is currently assigning IP's via DHCP. In this case, you will need to simply recreate the DHCP scope to reflect the new IP scheme you are going to use.

I would do the following once you are ready to move to new ip scheme.

1. Change the ip on the server
2. Change the preferred DNS server on TCP/IP to your new local ip address of the server
3. Change DHCP scope (if applicable)
4. Change the DNS setting in DHCP to reflect your new server ip address (so that when it assigns addresses to clients, it will give them the proper DNS address)
5. If login scripts are...

net use m: \\XX.XX.XX.XX\<share>

then you will need to change that ip address (or just make it the hostname of your server)
6. Any port forwarding or NAT'ing being done in your firewall device will need to reflect new ip.

As for the trust.... trusts are based on domain name, so as long as the one forest can physically communicate with the other you should have no problems.



Chris Clancy, EnCE,CCE
Miles Technologies

 

[Stevehewitt]

Thanks Chris.

It's a dev server (servers) so no client thus no DHCP. That's great, pretty much what I expected, but always good to be on the safe side.

Essentially, nothing on AD really relies on IP, rather FQDN and DNS.

Nice one - thanks.




Steve.

"They have the internet on computers now!" - Homer Simpson