I have a domain controller that I need to rename (I think). This DC sits in a
separate site. Recently, networking redid the forward lookup record in the Unix DNS
server for this DC from "spock.dis.anl.gov" to "spock.dc.anl.gov" when they "rebadged"
the entire subnet. Now I have a child DC that thinks it is "spock.dis.anl.gov" but
DNS says it is "spock.dc.anl.gov". An enterprise dcdiag report says that it cannot
contact the DC, spitting out the following:
Testing server: ANL-WashDC\SPOCK
Starting test: Connectivity
* Active Directory LDAP Services Check
The host df4e1849-e5ce-407b-b8b7-d31305ce7e7f._msdcs.anl.gov could not be
resolved to an
IP address. Check the DNS server, DHCP, server name, etc
......................... SPOCK failed test Connectivity
We have this record in our AD-integrated DNS:
df4e1849-e5ce-407b-b8b7-d31305ce7e7f CNAME spock.dis.anl.gov
but there is no longer a "spock.dis.anl.gov" in DNS.
We even tried a CNAME chain (alias) entry in the DNS server but that didn't work. Can
I, somehow, rename the server while it is a DC or do I need to DCpromo it out, rename
it and then DCpromo it back in? Any pitfalls to watch out for? Thanks for any info!
Mike Thommes
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