bhieb
asked on
DNS Query Timeout
I have an email stuck in our outbound box on our exchange server 2010 (server 2008). It says DNS Query Failed. The .com is pipelineresourcesinc.com, so I did a nslookup on it, and I get this.
Server: ntdc.alanritchey.loc
Address: 192.168.0.xxx
DNS request timed out.
timeout was 2 seconds.
Name: pipelineresourcesinc.com
Address: 64.118.87.14
So it resolves correctly, but it is timing out. We only have the one dns server and all other addresses resolve w/o this timeout (ie. google.com, abc.com, msn.com...). What is odd is that from my client pc and another server, it resolves correctly no timeout or anything.
I've done a ipconfig /flushdns and ipconfig /registerdns with no luck. Also I have disabled ipv6 as we are not using it.
This server is also a DC but does not handle DNS. I am not seeing anything related in the event viewer on either box.
Server: ntdc.alanritchey.loc
Address: 192.168.0.xxx
DNS request timed out.
timeout was 2 seconds.
Name: pipelineresourcesinc.com
Address: 64.118.87.14
So it resolves correctly, but it is timing out. We only have the one dns server and all other addresses resolve w/o this timeout (ie. google.com, abc.com, msn.com...). What is odd is that from my client pc and another server, it resolves correctly no timeout or anything.
I've done a ipconfig /flushdns and ipconfig /registerdns with no luck. Also I have disabled ipv6 as we are not using it.
This server is also a DC but does not handle DNS. I am not seeing anything related in the event viewer on either box.
ASKER
It may, but I'm curious as to why it is just this domain. The server is not under any load with only 70 users, and the email has been retrying all day so even if there was a high load once, it should go through fine the next time. I would take your approach as kind of a last resort one, as I'd rather get to the rood cause of why this particular .com is behaving odd, and only for this one server.
Is there something specific to server 2008 that I need to do to flush the dns? It appeared to go through fine.
Is there something specific to server 2008 that I need to do to flush the dns? It appeared to go through fine.
ASKER CERTIFIED SOLUTION
membership
Create a free account to see this answer
Signing up is free and takes 30 seconds. No credit card required.
ASKER
Must have been an issue with the server as a reboot of the mail server fixed it.
On your server, open the DNS manager (Admin Tools, DNS).
In the left pane of the console, Right-click on the server name and select properties from the menu.
Click the tab for Forwarders.
Select (single-click) the first forwarder in the list, then click the "edit" button at the bottom of the dialog box.
You can then edit the number of seconds before queries timeout.
You could also add another forwarder to a public DNS server (for example, you could add 8.8.8.8 for Google's DNS server).
Not sure if this will resolve your problem (no pun intended!), but it's worth a shot!
-BOb