Re: DNS stops resolving...outbound email stuck until dns restarted

Patty S wrote:
We automatically do that when we install.

Instead of restarting the DNS service, does clearing the DNS server cache
work?

Are you using a forwarder?
Has it (the forwarder) been tested to allow recursion?

Does your firewall allow your DNS access to any address on port 53 UDP and
TCP?
If your firewall only allows access to your ISP's DNS on those two ports,
check the box "Do not use recursion for this domain" on the forwarders tab.

On the subject of forwarders, my preference is to not use a forwarder and
just let DNS do its own recursive lookups. It actually make you DNS less
susceptible to corruption because it will only use Authoritative servers for
resolution. I use a forwarder only if I have a caching DNS that I'm in
control of.


--
Best regards,
Kevin D. Goodknecht Sr. [MVP]
Hope This Helps
===================================
When responding to posts, please "Reply to Group"
via your newsreader so that others may learn and
benefit from your issue, to respond directly to
me remove the nospam. from my email address.
===================================
http://www.lonestaramerica.com/
http://support.wftx.us/
http://message.wftx.us/
===================================
Use Outlook Express?... Get OE_Quotefix:
It will strip signature out and more
http://home.in.tum.de/~jain/software/oe-quotefix/
===================================
Keep a back up of your OE settings and folders
with OEBackup:
http://www.oehelp.com/OEBackup/Default.aspx
===================================


.

Relevant Pages

  • Re: Recursive DNS setup
    ... Let me see if I've got this straight: In general, recursion in DNS ... using a delegation to the Microsoft.com DNS servers. ... And if I disable recursion on the forwarder page, ...
    (microsoft.public.windows.server.dns)
  • Re: Recursive DNS setup
    ... Let me see if I've got this straight: In general, recursion in DNS means to ... If I enable recursion on the forwarder page, then the DNS server will use ... And if I disable recursion on the forwarder page, ...
    (microsoft.public.windows.server.dns)
  • Re: Domain Replica
    ... I demoted that server properly before taking it offline for good. ... Here is a little info on how the DNS resolver works with regards to the ... DNS Client side Resolver service Query Process ... DNS Forwarder Resolution and Time Out Process: ...
    (microsoft.public.windows.server.general)
  • Re: Windows 2003 SP1 AD DC DNS fails to resolve multihomed A record using Forwarder
    ... If a Forwarder is in the "All other DNS domains" it is limited by the ... Forwarding timout, default 5 seconds, (Unless Do not use recursion is ... All three running DNS server. ...
    (microsoft.public.windows.server.dns)
  • Re: W2k SP4 DNS Not Accepting No For an Answer
    ... wish there was a way to put in the forwarder the domain names that I don't ... want forwarded off to my UNIX dns machine. ... are huge numbers of requests forwarded from the MS DNS machine to the UNIX, ... internal DNS server that responses from our external UNIX dns server are ...
    (microsoft.public.win2000.dns)
Loading