Need help with DNS (ptr records)

[andrew2000]

All,
I've been reading up on DNS, and can't find any leads on the issue I'm having.

2 Windows 2000 Domain Contollers, with 650 XP Clients. Clients should be updating via dynamic DNS. DHCP lease time is 1 day, DNS scavenging for all zones is 3 days. Scavenging is running ok, it just doesn't purge the "problem" records.

When I look into the various zone folders on the DNS servers, I notice that we have the same IP address attached to multiple client records.

For example:
192.168.4.1 ---- Host 1
192.168.4.1 ---- Host 2
192.168.4.10 --- Host 2 (also--this is the legit host 2 record)

I can prove that host 2's "real" IP is 4.10, because I can ping it at that address (and if I ping 4.1 Host 1 responds). However, if I run NSLOOKUP on Host 2, I get the 4.1 address.

I logged into Host 2, and ran IPCONFIG /REGISTERDNS. When I do that, I get an error message in the logs that says it can't be updated because there is a lock on the zone, probably because a zone transfer is in place.

Any ideas? I haven't found any good resources on this problem, which is quite severe.

Thanks,
Andrew

 

[andrew2000]

Also, I have lots of records that just have

hostname.

instead of

hostname.FQDN

Not sure if this helps

 

[pQi]

Is DDNS enabled on the server?

flush first then re-register the entries on the hosts.

If that doesn't work, what error message are you receiving the event log?

Let me know