DNS forwarding fails

From: Eddi (someone_at_somewhere.com)
Date: 07/30/04


Date: Fri, 30 Jul 2004 10:48:34 +0545

Greetings to all;
I have a problem with Forwarding.
My setup is as follows:
Machine 1 (MAC1):
Exchange 2000 SP3 Enterprise running on Windows 2000 Advance Server (patched
with the latest updates)
Configured SMTP connector to forward outgoing mails to MAC3

Machine 2 (MAC2):
Windows 2000 Advance Server (patched with the latest updates) Domain
Controller + DNS (Primary)
DNS is configured to forward queries to external public DNS servers.

Now the problem is MAC2 does not forward MX queries from MAC1 to the public
DNS servers. Therefore MAC1 fails to deliver outbound mails (inbound is
working). I checked MAC2 using NSLOOKUP, it does not resolves external name
queries. There seems to be no problem with routing (network config), because
I can do NSLOOKUP successfully from MAC2 to any public DNS server (therefore
I guess, DNS should also be able to do the same). Under monitoring tab,
Simple test queries PASSED but Recursive FAILED.

Please help me with this problem.

Thanks in advance,
Eddi



Relevant Pages

  • Re: dhclient not updating /etc/resolv.conf
    ... I recommend you install resolvconf and ... /etc/resolv.conf stay pointed at the dns servers for my work server. ... have you changed dhclient's config from the stock Debian ... To UNSUBSCRIBE, email to debian-user-REQUEST@xxxxxxxxxxxxxxxx ...
    (Debian-User)
  • Re: resolver doesnt see resolv.conf changes
    ... and is actually sending valid queries driven by a human trying to do something useful. ... Serving legitimate traffic isn't a problem for the root nameservers, but you could always set up a forwarder line to use the local ISP's nameserver first. ... [The root nameservers are seeing upwards of 90% bogus queries (ie, invalid queries, misplaced assertions from DNS servers claiming to be root nameservers themselves, Kaspersky-style DoS attacks, etc). ...
    (freebsd-stable)
  • The myth and the reality of EDNS
    ... when the majority of content DNS servers on ... Internet support EDNS0 in queries, ...
    (microsoft.public.windows.server.dns)
  • Dynamic DNS, with mail DNS
    ... I am facing a problem in configuring a Sendmail and DNS servers with a ... ADSL line to work with my other seperately loacted DNS ... 2).How can I config (edit the sendmail.cf file, ...
    (RedHat)
  • ADSL and mail DNS
    ... I am facing a problem in configuring a Sendmail and DNS servers with a ... ADSL line to work with my other seperately loacted DNS ... 2).How can I config (edit the sendmail.cf file, ...
    (RedHat)