Re: [fw-wiz] firewall rule lifecycle management

From: Kevin (
Date: 08/31/05

  • Next message: Christoph Haas: "Re: [fw-wiz] firewall rule lifecycle management"
    Date: Tue, 30 Aug 2005 23:44:04 -0500

    On 8/30/05, Michael Cox <> wrote:
    > Question: What do those of you in large environments do to manage your
    > rulesets in terms of removing access that is no longer required?

    This can be a real problem, especially for services which are only
    used for quarterly or biannual reports, if that often.

    We're just now migrating a number of B2B rules to new firewalls,
    and in this process we're discovering that fully half of the current
    rules are no longer used; in many cases the source or destination
    IP address no longer exists, often the employee listed as the
    contact on the original request is no longer with the company.

    Last week I was trying to track down a port and determined that the
    vendor offering the B2B service had been bought out, no longer
    exists under the original name. But the service is still running,
    I wonder if they know? (legacy firewall policies cut both ways!)

    > We get lots of requests to add access, but are almost never told when
    > something can be removed. This is a large corporation with lots of
    > subcontractors, B2B, etc., and we're looking for ideas on how others
    > get a handle on this (or does anybody?).

    Our Sidewinder G2 firewalls offers fields for an end time and date
    under the "authentication" settings for each rule, and we are starting
    to request a termination date for all "short term" requests and
    entering this into the firewall. The vendor also offers an add-on
    reporting tool which can provide rule-based reports showing
    unused rules in the active firewall policy. I haven't tried this yet,
    as the "Security Reporter" only runs on Windows.

    It should be interesting to see what happens six months down the road,
    when these rules start to expire...

    Kevin Kadow

    Moderator, Unofficial Sidewinder Firewall Users group:
    firewall-wizards mailing list

  • Next message: Christoph Haas: "Re: [fw-wiz] firewall rule lifecycle management"