Really stumped on this one. All of my computers are unable to browse to aol.com or mapquest.com. I've traced it down to DNS but am unsure what the problem is. All is configured fine and no errors in the event logs. I can resolve everything on my domain and also against the root servers. I've confirmed that no "." domain exists on my DNS servers and that the root servers are configured. I can resolve new domains that have never been in my cache just fine so I can't figure out why these two domains are the only ones causing trouble.
This all worked fine roughly 3 weeks ago and then stopped one day. All searches for viruses/spyware come up blank. If I run nslookup my DNS servers simply timeout. I confirmed that they have reverse lookup records, rechecked the configs, everything looks fine. I even cleared the dns cache on the clients and servers and rebooted. I am able to query external DNS servers with nslookup and resolve these domains, but setting them up as forwarders on the DNS servers makes no difference.
Any ideas?
This all worked fine roughly 3 weeks ago and then stopped one day. All searches for viruses/spyware come up blank. If I run nslookup my DNS servers simply timeout. I confirmed that they have reverse lookup records, rechecked the configs, everything looks fine. I even cleared the dns cache on the clients and servers and rebooted. I am able to query external DNS servers with nslookup and resolve these domains, but setting them up as forwarders on the DNS servers makes no difference.
Any ideas?