troubleshooting Question

DNS Entries are missing but still can be NSLOOKUP

Avatar of Naj Saqi
Naj SaqiFlag for Australia asked on
Active DirectoryDHCPDNS
25 Comments3 Solutions650 ViewsLast Modified:

I have five domain controllers running Windows Server 2008 R2. I have also enabled DNS scavenging on one of the DCs.

A few days ago I have noticed that lots of machines are missing in our DNS. But when you ping them, most of them are pingable with hostname, even I can NSLOOKUP as well.

What could be the issue? Is my DHCP not registering new entries. Interestingly, all old machines are missing. Old means, they are still active but they are on network for some time.
Tom Scott
Consultant, Network Engineer

Our community of experts have been thoroughly vetted for their expertise and industry experience.

Join our community to see this answer!
Unlock 3 Answers and 25 Comments.
Start Free Trial
Learn from the best

Network and collaborate with thousands of CTOs, CISOs, and IT Pros rooting for you and your success.

Andrew Hancock - VMware vExpert
See if this solution works for you by signing up for a 7 day free trial.
Unlock 3 Answers and 25 Comments.
Try for 7 days

”The time we save is the biggest benefit of E-E to our team. What could take multiple guys 2 hours or more each to find is accessed in around 15 minutes on Experts Exchange.

-Mike Kapnisakis, Warner Bros