troubleshooting Question

Internal MS DNS resolution problems.. going crazy!

Avatar of FBRemote
FBRemote asked on
TCP/IPWindows NetworkingNetwork Architecture
4 Comments1 Solution112 ViewsLast Modified:
Hi.  Recently had a re-ip of a small office.  Server A was changed along with all others.  Static DNS entries corrected. WINS removed from the environment (all microsoft).  Server A is a SQL 2008 R2 server, running a db for an internal app.

We are getting a situation where the internal app launches fine, but at some point, they lose connectivity.  If they ping Server A, they get Server B's IP address.  an ipconfig /flushdns resolves the issue.

Things tried:
1) shut down WINS/wins services.
2) verified that all DNS servers have the correct static IP
3) verified the client is pointing to the proper dns servers
4) looked in the dns for cname entries
5) used nslookup to show proper resolution when queried.
6) checked local hosts/lmhosts files
7) checked server adapter settings for secondary IP mappings
8) ran arp - a to verify correct macs being returned

Is there any way of finding out, by hostname, what resolution source is responsible?  What additional steps can I take to try and narrow this down?

Thanks in advance!
ASKER CERTIFIED SOLUTION
Kaffiend

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

Join our community to see this answer!
Unlock 1 Answer and 4 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 1 Answer and 4 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