Endpoint Protection

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  • 1.  SEP 12.1.x Default Firewall Rules - How to change?

    Posted Nov 07, 2013 03:50 PM

    Hello All,

    Well I just installed the SEP 12.1.4 client on a brand new machine and noticed the following default rules were installed as a part of NTP. I'm sure it's obvious, and I'm just overlooking it...but where do I change the default rules that get installed on a clean machine? As a side note, the rules are NOT in the firewall policy I selected when I built the installer.

    Also, where on the local machine (client) are the default firewall rules stored?

     

    DefaultFirewallRules.PNG

     

    Thanks for helping open my aging ol' eyes.

    -Mike



  • 2.  RE: SEP 12.1.x Default Firewall Rules - How to change?

    Posted Nov 07, 2013 03:53 PM

    This is managed and you want to view/change from the client side?

    You need to set the client to Mixed mode

    How to view the firewall rules on a managed SEP client.

    Article:TECH104877  |  Created: 2008-01-07  |  Updated: 2012-04-24  |  Article URL http://www.symantec.com/docs/TECH104877

     



  • 3.  RE: SEP 12.1.x Default Firewall Rules - How to change?

    Posted Nov 07, 2013 04:06 PM

    Hi Brian,

    Don't know why my screen shot is not displayed frown but no, I don't want to change the rules on the client after SEP is already installed, I want the changes made before the package is created so that SEP gets installed on each client with the changes already made.

    -Mike



  • 4.  RE: SEP 12.1.x Default Firewall Rules - How to change?

    Posted Nov 07, 2013 04:08 PM

    Best I can think of is to create a group and a fw policy configured the way you want it. Than when you create the package, tick the box for "Export packages with policies from the following groups" and select that group.

    I believe all policies are stored in serdef.dat file which is encrypted.



  • 5.  RE: SEP 12.1.x Default Firewall Rules - How to change?

    Posted Nov 07, 2013 04:16 PM

    Thanks for the suggestion, but the firewall policy on the server (the one I painstakingly manage to very exact specifications from our Cyber Security folks) appears to be independent of the Default Firewall rules that are installed locally with the client.

    What seems to be installed with the client are the rules in the generic "Firewall policy" that is created when the SEPM is first installed. That particular policy is only used for reference and is not applied to ANY location, and was not used to create my installer package. I hope this is making some sense.

    Thanks again,

    -Mike



  • 6.  RE: SEP 12.1.x Default Firewall Rules - How to change?
    Best Answer

    Posted Nov 07, 2013 04:24 PM

    Yea you can check those rules by setting to Mixed Mode and going to Options under NTP and select View Network Activity >> Tools >> View Firewall Rules.

    With all that being said, the rules apply depending on what mode the client is in. I assume your in server mode. I know some rules are simply built-in and cannot be modified (or disabled).

    I think I know what your asking I just don't think it can be done.



  • 7.  RE: SEP 12.1.x Default Firewall Rules - How to change?

    Posted Nov 07, 2013 04:42 PM

    Were actually running in mixed mode and I can go to the client and make the changes I need without any problems...but to me it doesn't make sense to make the changes on the client after SEP is installed on many, many, many machines. What does make sense, to me, is to modify something on the SEPM so that the installer packages already contain the modifications. Which it sould like I can't do... :-(

    Symantec can't seriously assume that their Default Rule set is right for every one of their customers, or do they?

    DefaultFirewallRules_0.PNG

    Thanks again for your valuable input.

    -Mike

    P.S. Found this which may help me do what I need. http://www.symantec.com/docs/TECH102410