sites dns entries disappearing

  • Thread starter Thread starter Jason
  • Start date Start date
J

Jason

Hi, we have 12 domain controllers in 12 sites each with active directory
integrated dns.
A while back (5months) we noticed that dns entries started disappearing from
'forward Lookup Zones myorg.org _msdcs dc _sites '

Previous to the 5months we updated 4 of our servers. When the dns entries
start disappearing the only servers left in dns are the 4 servers that were
upgraded?

Below is a entry from netdiag it re-registered the given dns entries and
the servers were back in the _msdcs dc _sites? But after 5 or so days the
servers would
start disappearing again.


FIX] re-register DC DNS entry
'_ldap._tcp.8891d883-fe40-4c69-ae65-dea6bc404d12.domains._msdcs.myorg.org.'
on DNS server '127.0.0.1' succeed.
[FIX] re-register DC DNS entry '_ldap._tcp.dc._msdcs.myorg.org.' on DNS
server '127.0.0.1' succeed.
[FIX] re-register DC DNS entry '_kerberos._tcp.dc._msdcs.myorg.org.' on DNS
server '127.0.0.1' succeed.
[FIX] re-register DC DNS entry
'_kerberos._tcp.WHPS._sites.dc._msdcs.myorg.org.' on DNS server '127.0.0.1'
succeed.
[FIX] re-register DC DNS entry '_ldap._tcp.WHPS._sites.dc._msdcs.myorg.org.'
on DNS server '127.0.0.1' succeed.

Any help suggestions appreciated.
jason
 
Hi, I notices that one server had scavenging enabled.. would this possibly
be the cause?

thx jason
 
Perhaps your DNS scavaging is too agressive? or you're not dynamically
registering?

Thanks,
Christopher Ransom, MCSE 2000/2003, MCSA 2000/2003, CCNA
Microsoft Enterprise Platforms Support
Windows NT/Windows 2000 Directory Services
 
Yes, as already stated by Chris, if you have a strict (read over-zealous ;-)
scavenging routine this can cause this to happen. Netlogon is meant to
re-register every twelve hours, but I've read of issues with scavenging and
SRV records where netlogon doesn't seem to do this. MS have a fix, but the
person I spoke to who used that said it didn't change anything...

I'll see if I can find the KB ref. for the fix...


--

Paul Williams

http://www.msresource.net/
http://forums.msresource.net/
 
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