Re: Can't resolve mx records

Tech Tip: Click here to run a free scan for Windows Errors and optimize PC performance

From: Ray (anonymous_at_discussions.microsoft.com)
Date: 02/05/04


Date: Thu, 5 Feb 2004 11:41:36 -0800

We have a Cisco PIX 515 Firewall. Port 53 is open on TCP
and UDP. the router is a Cisco also. It is supplied by our
ISP...Bellsouth. Thanks for the response. I guess I need
to work on my search technique because I couldn't locate
any articles on it. I will look at the articles you
suggest. This DNS server was an upgrade so this may be the
solution I am looking for. Thanks for your response. I
will let you know if this solves the problem.

Ray

>-----Original Message-----
>Hello All,
>
>You may want to look at the below articles in relation to
your failed MX
>queries from your W23K DNS server.
>
>828731 An External DNS Query May Cause an Error Message
in Windows Server
>2003
>http://support.microsoft.com/?id=828731
>
>828263 DNS query responses do not travel through a
firewall in Windows
>Server
>http://support.microsoft.com/?id=828263
>
>832223 Some DNS Name Queries Are Unsuccessful After You
Upgrade Your DNS
>Server
>http://support.microsoft.com/?id=832223
>
>http://www.microsoft.com/technet/treeview/default.asp?
url=/technet/prodtechn
>ol/windowsserver2003/proddocs/standard/sag_DNS_imp_EDNSsup
port.asp
>
>It sounds like you are struggling with the EDNS0
problem, which can be
>resolved via a simple command line syntax typed on the
DNS servers. I
>suggest that you look at the above articles.
>
>Question
>***********
>What type of firewall and/or router separates the DNS
servers from the
>internet?
>
>Shane Brasher
>MCSE (2003,2000,NT),MCSA, A+
>Microsoft Platforms Support
>Windows NT/2000 Networking
>
>
>
>
>
>.
>



Relevant Pages

  • Re: DNS Server set to forwarder randomly going out to root servers
    ... We implemented the EDNS0 change to no avail. ... The firewall is actually acting as a caching DNS server. ...
    (microsoft.public.windows.server.dns)
  • Re: Can Not Ping By Name
    ... >>> Make sure there's no firewall packaged with the VPN client. ... >>DNS server is the same physical server as the Exchange, ... > Network problem solving - general advice: ...
    (microsoft.public.windowsxp.network_web)
  • Re: dns server behind a firewall?
    ... > cause I wanted to be sure about the server IP switching. ... Your DNS will be down during switchover ... No. Doublecheck that the DNS server allows queries on all ... >>> firewall and want me to do the job, thats why I m posting again. ...
    (microsoft.public.windows.server.dns)
  • Re: Internet access problem caused by DNS failure
    ... i.e. before the Firewall part. ... Nothing stands out for the dns server. ... Ethernet adapter Wireless Network Connection: ...
    (microsoft.public.windows.server.sbs)
  • Re: Do I really need a DNS Server?
    ... > My firewall handles the DHCP so I'll have to look into how that will work ... If you cannot set the correct DNS server on the ... >> Configure all clients to use ONLY the internal DNS server ...
    (microsoft.public.windows.server.dns)