DNS problems after changing subnetmask

[Guest]

Hallo all,

A couple of days ago we changed the subnetmask and ip address of our Windows
2003 Small Business server (i know this is W2K group, but I could not find a
W2K3 group). After that we have numerous problems which all are DNS related.
First of all, our eventlog is flooded with events 4004 and 4015. Also, an old
Reverse DNS zone (192.168.10.x Subnet) is 'stuck'. We cannot do anything with
it. If we try to delete the zone the following error appears "The zone cannot
be deleted. The Active Direcory Service is not available."

The TCP/IP settings of the server seem to be correct. It is pointing to
itself for name resolution. Also, as a Knowlegde base article discibes, we
checked that ICS is turned off.

We have searched for a solution for this problem for a couple of days, but
we are running out of ideas. Does anybody have an suggestion?

Many thanks in advance.

 

[ptwilliams]

Ensure that you've deleted the old addresses for the DC(s) out of DNS and
that everything is correctly registered -restart netlogon to be sure.

If you're still having the issue with deleting that reverse lookup, view
advanced features in dsa.msc and delete it from underneath System\ Microsoft
DNS.

Have you looked at www.eventid.net for any suggestions?

--

Paul Williams

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

 

[Guest]

Hello Paul,

First of all, thank you for you response.

I am almost sure that everything is correctly registered in DNS. I tried
doing "ipconfig /registerdns", and even rebooted the server. I have also
restarted the Netlogon service serveral times.

I have tried to delete the zone from Active Directory user dsa.msc, as you
suggested. But when I hit the delete button I get "The object
10.168.192.in-addr.arpa (or some of the object it contains) cannot be deleted
because: The directory service encountered an unknown failure"

Just before I posted my initial question I already investigated the
eventid.net website. But the suggestions mentioned on the website did not
help me.

Do you have anymore suggestions? Many thanks in advance

Regards,
Richard

 

[Kevin D. Goodknecht Sr. [MVP]]

In

Hallo all,

A couple of days ago we changed the subnetmask and ip
address of our Windows 2003 Small Business server (i know
this is W2K group, but I could not find a W2K3 group).
After that we have numerous problems which all are DNS
related. First of all, our eventlog is flooded with
events 4004 and 4015. Also, an old Reverse DNS zone
(192.168.10.x Subnet) is 'stuck'. We cannot do anything
with it. If we try to delete the zone the following error
appears "The zone cannot be deleted. The Active Direcory
Service is not available."

The TCP/IP settings of the server seem to be correct. It
is pointing to itself for name resolution. Also, as a
Knowlegde base article discibes, we checked that ICS is
turned off.

We have searched for a solution for this problem for a
couple of days, but we are running out of ideas. Does
anybody have an suggestion?

Many thanks in advance.

Did you try dcdiag /fix and Netdiag /fix?
Are you using NAT in RRAS with the DNS proxy enabled?

 

[Guest]

Did you try dcdiag /fix and Netdiag /fix?
Are you using NAT in RRAS with the DNS proxy enabled?

Hi Kevin,

Yes, I allready tried to run dcdiag and netdiag in fix modus. Both tools
don't seem to give any errors. Everything seems to be fine according to both
tools...

Thanks