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internet on exchange 2003 slow

Posted on 2013-05-29
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Last Modified: 2013-07-02
Hi guys,

I'm having trouble browsing the internet from exchange 2003 suddenly. Recently introduced new 2008 r2 DC running alongside 2003 Dc  (been a few months) but all has been running well since the upgrade. No DNS errors clients/ servers accessing OK/ not using a relay. Fully patched and running eset on exchange box - no virus hopefully. Pages are very slow load. Any ideas?
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Question by:jovonn
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by:smckeown777
ID: 39204942
I assume you mean 'Server 2003' - not Exchange 2003?

What spec is the server?
What browser? IE? What version?

Not sure why you'd want to browse the internet from a server...did you try installing Chrome to see if any difference?
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by:Skyler Kincaid
ID: 39204944
It sounds like a DNS issue. What do you have set for the DNS servers on the Exchange box?
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by:jovonn
ID: 39205053
Yes sorry, server 2003. Fairly newish server, so spec is fine. IE and Chrome.  server not used for browsing but I did notice it was very slow today. Primary DNS set to new 2008 r2 server, as are most of the clients and the secondary dns to the older 2003 r2 server. Ran dcdiag /dns and there are no errors on DNS servers which are also the GC's too,- nslookup showing ok and there are no queues, so sending and receiving is also ok.
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by:smckeown777
ID: 39205064
Ok, on the new 2008 server have you setup Forwarders on the DNS console settings?

DNS Console - right click servername - properties
Forwarders tab
Enter your ISP's DNS servers, OpenDNS, Google's DNS...etc...

With those additions it should be faster
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by:jovonn
ID: 39205094
Yes, using forwarders on on both servers for ISP and Google and root hints also checked, but no problem from the 50 workstations accessing the net except for exchange box?
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by:smckeown777
ID: 39205129
So the exact same DNS primary and secondary entries on this server and the relevant clients are the same?

Can you ipconfig /all from server and 1 client just to be sure?
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jovonn earned 0 total points
ID: 39207273
Yes all DNS settings are the same across the network. Restarted the DNS server, router, exchange server last night, ran dnscmd /clearcache on dns server and still browsing is slow. I'm concerned as this could potentially be another issue on the exchange server, but event viewer shows no problems and both DC's are replicating normally?  Found this although we are using forwarders

http://support.microsoft.com/kb/2508835

having restarted the primary dns server last night then running nslookup from the exchange server (during the reboot) shouldn't the secondary dns server automatically be resolving dns - this did not occur?
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by:smckeown777
ID: 39207710
Ok, and the 2nd DC also has its Forwarders section setup like the main DC?
That link shouldn't be needed since as you mention you are using Forwarders...
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Author Closing Comment

by:jovonn
ID: 39292545
Seems to be OK but still a bit slow
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