Welcome to ISAserver.org

DNS Stops Responding

Users viewing this topic: none

Logged in as: Guest

Printable Version

All Forums >> [ISA Server 2000 General] >> Installation >> DNS Stops Responding

Page: [1]

Message

<< Older Topic Newer Topic >>

DNS Stops Responding - 29.Jan.2003 1:57:00 PM

komoman

Posts: 43
Joined: 2.May2002
From: Philly
Status: offline

I have a really strange issue where every so often ISA will stop responding to DNS queries.

I run split DNS and publish the external DNS from a separate machine. The internal DNS resides on the same server as ISA but I do not publish these services. When the DNS stops responding externally restarting the ISA services restores the functionality. I do nothing on the machine that is running DNS itself, merely restarting the ISA services automagically fixes everything.

This used to happen every month or so, but now has happened 3 or 4 times in the past 10 days. I did some searching here to see if this is a known issue but haven't come across anything just like this. My apologies if this is a repeat.

Thanks for any help/suggestions.

Dan

Post #: 1

Featured Links*

RE: DNS Stops Responding - 29.Jan.2003 5:14:00 PM

tshinder

Posts: 46971
Joined: 10.Jan.2001
From: Texas
Status: offline

Hi Dan,

Its a very well-known issue, unfortunately. I think I've got it beaten, but I want to wait another couple of weeks before sharing my solution. The key seems to be making changes to the NetBIOS parameters in the registry. But it might be a coincidence. I'll let everyone know my finding by the middle of February.

HTH,
Tom

(in reply to komoman)

Post #: 2

RE: DNS Stops Responding - 3.May2004 9:17:00 PM

celledge

Posts: 18
Joined: 17.Jul.2003
Status: offline

Did you ever post a solution for DNS problems? I have the same problem where DNS stops responding quite often.

(in reply to komoman)

Post #: 3

RE: DNS Stops Responding - 3.May2004 9:26:00 PM

komoman

Posts: 43
Joined: 2.May2002
From: Philly
Status: offline

As I understand it, this patch takes care of the problem:
Patch page here

I run a primary on a different firewall for redundancy, so I'm not certain of it's effectiveness.

(in reply to komoman)

Post #: 4

RE: DNS Stops Responding - 3.May2004 9:34:00 PM

spouseele

Posts: 12782
Joined: 1.Jun.2001
From: Belgium
Status: offline

Hey guys,

check out http://support.microsoft.com/default.aspx?scid=kb;EN-US;810493 .

HTH,
Stefaan

(in reply to komoman)

Post #: 5

RE: DNS Stops Responding - 1.Jun.2007 9:14:23 AM

endbringer

Posts: 1
Joined: 21.May2007
Status: offline

I have the same problem with ISA 2006 running on Windows 2003 Server. It just suddenly happens without any warnings or logical reasons. After monitoring activity on the ISA server I can see that the local host suddenly denies DNS queries to external. I have the same setup and rules on a different network where everything is running smoothly.

(in reply to spouseele)

Post #: 6