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Exchange 2007 Static ports

Posted on 2010-09-09
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Last Modified: 2012-05-10
I'm having a problem with a remote location with a domain trust between us not being able to communicate with my exchange sever, there is a firewall between us and with out opening all the exchange dynamic port after the contact with exchange using port 135, I was told that setting static port is what is need to do on my exchange server (within the registry) . Can anyone help and explain how to do so? Also, does anyone have a different work around? Every time I reboot the ports change and the remote location and no longer use outlook client (though OWA does work).
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Question by:Tencha
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by:endital1097
ID: 33638827
i would configure the remote clients to use outlook anywhere which only requires port 443
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by:btdownloads7
ID: 33639242
Outlook anywhere will work, but it's a pain to set up. you can set up VPN access to the server, then set up Outlook to connect to the exchange server over LAN (just use the local IP or machine name for the server). Whenever the machine is actually on the LAN, it will connect just fine. Whenever it's outside the LAN connecting over the internet, you will have to connect to the VPN first, and then Outlook will connect easily.

The only port you'll have to forward on the router is 1723 to the server for the PPTP VPN connecton.
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flaphead_com earned 1500 total points
ID: 33639301
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by:flaphead_com
ID: 33649838
Any joy?
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by:FastFngrz
ID: 33669187
If I  understand correctly, you have two domains, with a 1-way or 2-way trust setup between the two domains. In addition, you have a firewall between the two domains. Exchange is setup in one domain, and your outlook clients live in the other domain.

The firewall is blocking Netbios packets, which is preventing Outlook.exe from logging into Exchange.

Assuming this is the only problem you are having (which is not likely the case, the trust relationship is failing miserably unless you've set the RPC endpoints for Netlogin and server processes), then the easy solution is to configure your Outlook profiles to use RPC over HTTPS (now called "Outlook Anywhere" in Exchange 07.  You'll need a valid SSL cert and some powershelling, get autodiscover working so your Outlook 2007 clients just "go" and you'll solve the Outlook to Exchange problem.  However, the trust between the two domains (if it is necessary) needs some port mapping as well.
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by:pwindell
ID: 33691593
If this firewall is between two LANs with no Internet between them then get rid of the Firewall and replace it with a LAN Router.  It is going to be nothing but "in the way" for everything.  If you think that a firewall is the only security that exists then you are in trouble.  Your security comes from the natural access control abilities within Active Directory and within the Applications that are being used.  LAN Routers can also use ACLs for Layer3&4 if you still need those afterwards.
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Author Closing Comment

by:Tencha
ID: 33857834
After reading all the doc.s  and appling the solution, things worked perfect!
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