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Sharepoint backup with DPM 2010 through firewall

Posted on 2010-09-16
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Dear experts,
I want to use DPM 2010 (on 2008 R2) to test backup of a Sharepoint farm in a DMZ. The MOSS App server and the SQL content db server are in the same DMZ alongside DPM 2010, while the WebFrontEnd server is in its own DMZ.
According to http://technet.microsoft.com/en-us/library/ff399341.aspx and http://support.microsoft.com/kb/929851 i have to open at least 255 high ports for RPC between the two DMZs to enable communication between DPM and the protected server. However, the articles are rather general guidelines and I was unable to find any specific information on whether I really need those ports open to allow DPM to secure Sharepoint. I want to avoid opening that many ports.

So, my question is, do I need to open those 255 ports between the two DMZs or will DPM be able to secure Sharepoint without RPC/DCOM?

Your input is highly appreciated!

Thanks, Stephan
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Buechler_IT_Consulting earned 0 total points
ID: 33699743
Well, didnt get an answer here, so I called Microsoft. The above described setup is not supported by Microsoft because of the DCOM/RPC requirements. DPM 2010 can still be used to secure Sharepoint, but with the WebFrontEnd out of the game no item-level recovery is possible, unless a recovery farm is used. But then that just defeats the point of using DPM 2010 for this.
We will look into different ways of accomplishing our goals.
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