Sometime DNS Server not resolving properly

  • Thread starter Thread starter Jong
  • Start date Start date
J

Jong

We are running MS DNS server in Windows NT 4.0 SP6 . The DNS
server is behind a firewall. All of our systems are using
this server as the only DNS server. We are experiencing
an issue happen occasionally.
Every once in a while, a particular web site such as www.hotmail.com
or www.msn.com will not be resolved at all when using our DNS server,
it was working a minute ago but not working after that, then I have to
restart the DNS server or go to DNS Manager to delete the Cache for
that particular web site, after that it is working again. Any idea
why? Can someone sugguest a solution to me? Thanks.

Jong
 
You probably need to secure the cache from pollution. See:

241352 - How to Prevent DNS Cache Pollution
(http://support.microsoft.com/?id=241352).

--
J.C. Hornbeck, MCSE
Microsoft Product Support

NOTE: Please reply to the newsgroup and not directly to me. This allows
others to add to and benefit from these threads and also helps to ensure a
more timely response. Thank you!

This posting is provided "AS IS" without warranty either expressed or
implied, including, but not limited to, the implied warranties of
merchantability or fitness for a particular purpose.
 
J> We are running MS DNS server in Windows NT 4.0 SP6 .

Then, strictly speaking, you are in the wrong newsgroup.

J> Every once in a while, a particular web site such as
J> www.hotmail.com or www.msn.com will not be resolved
J> at all when using our DNS server [...]

Enable "secure cache against pollution" first of all.
 
Jong said:
We are running MS DNS server in Windows NT 4.0 SP6 . The DNS
server is behind a firewall. All of our systems are using
this server as the only DNS server. We are experiencing
an issue happen occasionally.
Every once in a while, a particular web site such as www.hotmail.com
or www.msn.com will not be resolved at all when using our DNS server,
it was working a minute ago but not working after that, then I have to
restart the DNS server or go to DNS Manager to delete the Cache for
that particular web site, after that it is working again. Any idea
why? Can someone sugguest a solution to me? Thanks.

Jong
Click to expand...

I have a simmilar problem.

Here is our setup.

We use bind as external DNS which is located in the DMZ.
We use MS-DNS server as our internal DNS for AD and local
adress resolution for special purpose. (like: me creating
a web site on my personal machine...)

We configured at least one DNS server per location, we have
building across the state (one state) which are all networked
together with WAN link.

The problem is that once in a while a particular adress wont
be resolved anymore.

Ex: intra.atak.qc.ca will no longer be resolved while mail.atak.qc.ca
will resolv succesfully.

I checked and the cahce pollution protection is active on our DNS
servers.

Can someone help me get through this?
 
Back
Top