DNS not resolving internet domain names , its behind ISA2004

[Guest]

I have a DNS server (AD integrated) on 2003 domain controller, behind
ISA2004 server which is connected to internet thru ADSL.
My DNS server is not resolving Internet domain names but can resolve local
names. It is configured with valid forwarders .Nslookup is getting timed out
when I try to resolve out side domain names. Due to this my exchange server
not able to send mails to out as SMTP is routed thru DNS .


On ISA server I have opened DNS ports.
Looks like DNS queries are getting blocked on the way.
ISA server is resolving names as its external interface connected to
internet is configured with ISPs DNS server address.
My mail queue is growing as it cant go out where as its able to send mails
internally , Any one having solution to solve this name resolution issue???

 

[Ace Fekay [MVP]]

In

I have a DNS server (AD integrated) on 2003 domain controller, behind
ISA2004 server which is connected to internet thru ADSL.
My DNS server is not resolving Internet domain names but can resolve
local names. It is configured with valid forwarders .Nslookup is
getting timed out when I try to resolve out side domain names. Due to
this my exchange server not able to send mails to out as SMTP is
routed thru DNS .


On ISA server I have opened DNS ports.
Looks like DNS queries are getting blocked on the way.
ISA server is resolving names as its external interface connected to
internet is configured with ISPs DNS server address.
My mail queue is growing as it cant go out where as its able to send
mails internally , Any one having solution to solve this name
resolution issue???

Apparently this was Multi-posted. **Please see my response to your post in
the windows.server.dns newsgroup.

Did you post it to any other newsgroups? It would have been to yours and our
advantage if it was cross-posted to all the newsgroups so any responses from
anyone answering in any of the groups will automatically go to ALL the
groups it was posted in.

Multiposting vs Crossposting:
http://www.blakjak.demon.co.uk/mul_crss.htm

--
Ace

This posting is provided "AS-IS" with no warranties or guarantees and
confers no rights.

If this post is viewed at a non-Microsoft community website, and you were to
respond to it through that community's website, I may not see your reply
unless that website posts replies back to the original Microsoft forum.
Therefore, please direct all replies ONLY to the Microsoft public newsgroup
this thread originated in so all can benefit or ensure the web community
posts it back to the original forum.

Ace Fekay, MCSE 2003 & 2000, MCSA 2003 & 2000, MCSE+I, MCT, MVP
Microsoft Windows MVP - Windows Server - Directory Services
Microsot Certified Trainer
Infinite Diversities in Infinite Combinations.
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