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Backup Servers on DMZ

Posted on 2009-04-08
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Last Modified: 2013-12-01
I am trying to back up 2 servers that are on my DMZ.  The ports that are open on the firewall (between LAN to DMZ are:  1434 (MS SQL named), 6101 (BU Exec Agent Browser), 10000 (BU Exec Remote Agent), 3527 (BU Exec Server) and 1125 (BU Exec SQL).  

The Symantec Backup Exec 11d is installed on a MS Server 2003 Server Standard and is located on the LAN.

I know I'm missing something on firewall - if I open up all ports then of course the backup works.  But I'm sure other people have to backup servers on the DMZ but I am at a loss as to what I'm missing.
On the Backup Exec 11.d server I have Enabled remote agent TCP dynamic port range of:  1025 - 10000  (This can be found under Job Defaults, Network and Security)

I always get "A communications failure has occurred."  All my servers on the LAN back up ok - it's just the ones on the DMZ.
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Question by:sylvieann
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50centos earned 750 total points
ID: 24101002
What is your Firewall? You can temporarily create a rule:
BEX Media Server --> ANY --> DMZ Servers
Then find out what ports BEX used to successfully ran a backup job to your DMZ Servers.
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by:sylvieann
ID: 24172357
I found that I was missing port 1025
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