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SBS 2011 Firewall for connected desktops

Posted on 2012-09-14
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I would like to allow only specific computers on the network to disable the windows firewall.  We have an older piece of software that communicates with a Xerox 6204 through the network and it will only successfully communicate when the firewall is off.  I have the software added to the exceptions list but this does not seem to matter.  Any advice is appreciated.
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Question by:EMB_Corporation
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by:Jeffrey Kane - TechSoEasy
ID: 38400360
The firewall is handled by a Group Policy on your SBS 2011.  You can create exceptions to that by denying delegation of the policy to the specific computers.  

I suggest that you create a security group and add the computers you want to affect to that group.  Then when you set the deny config in the GPO you can just list the Security Group.

Info on how to configure this is here:  http://support.microsoft.com/kb/816100

Jeff
TechSoEasy
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Jeffrey Kane - TechSoEasy earned 2000 total points
ID: 38400378
On second thought... SBS 2011's Group Policy is a comprehensive "Client" policy... which includes things other than the Firewall.

The GPO's are:
Windows SBS Client - Windows 7 and Windows Vista Policy
Windows SBS Client - Windows XP Policy

If you fully deny these to some machines, those machines will not get other important settings.

So, my other solution would be to use SysInternals ProcMon (http://live.sysinternals.com/procmon.exe) to see exactly which port might need to be added to the firewall exceptions on the workstations.

Jeff
TechSoEasy
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Author Closing Comment

by:EMB_Corporation
ID: 38400993
Thanks for the help.
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