Replace old Active Directory Domain server
Hi EE,
I have a domain controller that crashed and I'd like to plan out how we will get our new server in production.
We have four DCs and the one that crashed isn't holding FSMO roles. I do not have a backup and I will need to start fresh. This DC is a DHCP, DNS and print server.
What do I need to do to replace this DC with a new server? I cannot run DCPROMO and remove the old server, so not sure best way to remove the old DC. I' like to keep the old name and IP if possible, to help make things easier.
Thank you,
jcloud
ASKER
Thank you. Each site has their own Domain controller, which also holds DNS and DHCP server roles.
I assume that all of the sites are linked somehow so all of the computers and servers are able to communicate with each of the other domain controllers. If so then you should be all set.
HTH,
-saige-
ASKER
That is correct.
How would I ensure that DNS and DHCP entries are cleaned up on other replicating DCs?
Just to be clear:
1. Bring up new server
2. dcpromo to make DC
3. Remove old DC server
4. Clean up metadata
5. Cleanup any old dns and dhcp entries on any other servers
Questions:
1. Do I need to do anything during dcpromo on new server to keep same IP and hostname or is that impossible?
2. When cleaning old entries, where is this done at?
Thank you!
First thing to do is to clean things up:
DNS: Remove all A records and LDAP records in all of the folder trees.
AD Sites & Services: Delete the entire tree.
ADDS: Delete the AD object if it's still in the DC OU.
AD: Metadata Clean-up (as a post clean-up check).
Once that's done, make sure AD Replication is FRS otherwise it will need a migration to DFSR.
ASKER
Thank you!
Is this the only DHCP and DNS server? If not then you should only need to remove the server from active directory users and computers, perform a metadata cleanup and then ensure that the server's dns and dhcp entries are cleaned up from any other ad replicating dns and dhcp servers.
HTH,
-saige-