The top part is causing me an issue. From my firewall logs I've noticed the DPM server and client talk on random DCOM ports ranging from 1024 to 65,535. Worse than that, the random port communication occurs in both directions.
Currently for specific hosts, I've enabled these ports and can now get DPM backups to work, but this strikes me as crazy - how can I get DPM 2012 and Windows client servers to operate over an acceptabe port range? Leaving ports 1024 to 65, 535 open permanently
is not an option.
Although DPM does not block it, and technically it can work, but we don't support protecting servers in a DMZ for security reasons. Using certificate based authentication is best if you decide to pursue.
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