windows 2003 DDNS

Barry Finkel b19141 at achilles.ctd.anl.gov
Fri Jul 29 15:06:14 UTC 2005


"rubbersoul" <rodney.galley at gmail.com> wrote:

>I have an AD with 2 sites. I'm using Dynamic DNS and seem to be having
>the strangest problem. We have internal and external DNS
>servers.....when our users are within our network we want all there
>queries to resolve to the internal DNS servers.....so here goes...in
>our first site...will call it SiteA I can do a ping mail.acme.com and
>sometimes it'll resolve to the internal IP of that box (192.168.1.1)
>which is great! However, sometimnes it try's to resolve to the external
>IP of that box (66.200.x.x). When it does this I can't recieve
>mail....so what I usually have to do to resolve it is a
>ipconfig/flushdns and an ipconfig/registerdns....then it works and a
>ping resolves back to the internal address (192.168.1.1).....However,
>and this is were it get's even more weird....our other site (which has
>it's own DNS server...and exact copy of SiteA's DNS server) dosen't
>work at all....It always try's to resolve to the external IP of the
>box...no matter what I do.
>
>I've tried flushing the DNS on the client machine and re-registering
>it. I've tried clearing the cache of the DNS server....I've brought the
>DNS service down and up, checked to ensure that all the hostA records
>and MX records are in the right place....they are (there exact copies
>of SiteA's config)
>
>This is very strange and I can't seem to figure it out.....I should let
>you know that if I add the FQDN of our network to thos address it
>always works. Anotherwords...ping mail.acme.com.mycompany.local
>
>If I remove the forwarders (which forward unknown traffic to our
>extrenal DNS servers) everythig works fine....mail.acme.com will
>resolve to the internal address....but at that point we can't resolve
>say www.ggole.com because our DNS has no one to forward that unknown
>traffic to......HELP!

Are the DNS servers BIND running on W2003?  Or are they MS DNS Servers?
If BIND, I think that we would have to see the config files to be able
to determine more.  And what version of BIND?

If MS W2003 DNS, then you probably should be posting to an MS 
DNS-related newsgroup, as this is a BIND-centered discussion group.
----------------------------------------------------------------------
Barry S. Finkel
Computing and Information Systems Division
Argonne National Laboratory          Phone:    +1 (630) 252-7277
9700 South Cass Avenue               Facsimile:+1 (630) 252-4601
Building 222, Room D209              Internet: BSFinkel at anl.gov
Argonne, IL   60439-4828             IBMMAIL:  I1004994



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