DNS Forwarder vs Root hints
I came into an environment that had forwarders set to 8.8.8.8 for DNS. I have researched that root hints are the standard way to handle dns query. I just want to confirm that nothing would happen if i remove the forwarders. I have read a few articles and forums that said it was fine, but just want some clarification. The server i have in question is a windows server 2003 sp2 machine. The original issue i had is that i am seeing event id 5504 errors when trying to troubleshoot why the dns server would stop responding to client queries. When i restart the dns service is works again. The 5504 errors coincide with the dns server not responding. The errors state that: the dns server encountered in an invalid domain name in a packet from 8.8.8.8. I am hoping that this would resolve the issue. There was a hotfix which is already applied. Thanks for any a
June 29th, 2015 3:25pm

Hi Dmg,

Event ID 5504 is a normal condition and no further action is required.

Event ID 5504 DNS Server Message Processing:
https://technet.microsoft.com/en-us/library/ee783577%28v=ws.10%29.aspx?f=255&MSPPError=-2147217396

DNS server could be configured to use root hint if there is no forwarder.

Open DNS console, right click on DNS server and click Properties. Choose Forwarders tab and we would see the check box.

Here is the reference for DNS:
How DNS query works:
https://technet.microsoft.com/en-us/library/cc775637%28v=ws.10%29.aspx?f=255&MSPPError=-2147217396

Best Regards,

Leo

Free Windows Admin Tool Kit Click here and download it now
June 30th, 2015 2:52am

I appreciate your response; however when it gets the error 5504 with the error below the dns server service stops working. the contents of the error is below. is there any way to check its origination. there are a couple of hundred machines probably sending dns requests to it. :

0000: 50 12 80 00 01 00 01 00   P......
0008: 00 00 00 00 0a 74 75 6d   .....tum
0010: 62 6c 65 77 65 65 64 03   bleweed.
0018: 6f 72 67 00 00 01 00 01   org.....
0020: c0 0c 00 01 00 01 00 00   .......
0028: 00 00 00 04 3e 00 3a 5e   ....>.:^

July 2nd, 2015 12:51pm

Hi Dmg,

We could check the events of the DNS server service. The error message could help us to analyze the problem.

When you receieved the error, was the service stopped? We could check the status in Services console.

Besides, what's the language of your system?

Best Regards,

Leo

Free Windows Admin Tool Kit Click here and download it now
July 2nd, 2015 9:21pm

This topic is archived. No further replies will be accepted.

Other recent topics Other recent topics