Doing an SBS2011 to Server 2019Ess migration.
After promoting the new server to a DC, I ran the suggested dcdiag /test:dns command.
Errors galore:
"The host f2ff818c (big-ass GUID number here)._msdcs.domain.local could not be resolved to an IP address.
Got error while checking LDAP and RPC connectivity. Please check your firewall settings."
Then some stuff looked good, then:
TEST: Basic (Basc)
Error: No LDAP connectivity
No host records (A or AAAA) were found for this DC
Warning: The Active Directory zone on this DC/DNS server was
not found (probably a misconfiguration)
TEST: Dynamic update (Dyn)
Warning: Failed to add the test record dcdiag-test-record in zone atchison.local
TEST: Records registration (RReg)
Network Adapter [00000001] Microsoft Hyper-V Network Adapter:
Error:
Missing SRV record at DNS server 192.168.1.10:
_ldap._tcp.287c0a67-7ebf-4a06-b617-199cb510fede.domains._msdcs.atchison.local
Error: Record registrations cannot be found for all the network
adapters
Trouble with DNS problems is that I have to troubleshoot DNS (or even Active Directory) so seldom that I google this stuff and don't even understand what I'm reading. Google-Translate doesn't work on uber-geek...
****Full dcdiag output attached****