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IPS Change management process
From: danthemanbaxter at gmail.com (Dan Baxter)
Date: Thu, 21 May 2009 09:07:31 -0500

The company I work for is in the process of spinning up an IPS solution.
It's been a long time in coming and overdue, but we finally got the budget
approval.

Anyway, I'm developing the rules management process and have a few
questions.  We're a large, international company with many different
applications running on our WAN.  With many different application owners
that may or may not know which address & ports the apps require for
operation.  As a result, our management, while recognizing the need for the
project, are nervous that it will cause problems by blocking legitimate
traffic.

I'd like to know some of the items that should go into a good change
management process for adding/modifying rules to an IPS.  Our plan is to
place the devices into IDS mode for a time to get to know our network
better, but eventually we will turn blocking on.  From the time a ruleset
gets released by the vendor, to the rules getting implemented on the actual
devices, what are the steps you guys may be taking.

I appreciate any input.  Thanks!


Dan Baxter
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Quis custodiet ipsos custodes?
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