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Thread: How to verify placement of a firewall?

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  1. #1
    Junior Member
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    Nov 2016
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    How to verify placement of a firewall?

    Hi, I'm looking for techniques to verify the physical and logical placement of a firewall. Let's assume I have a network map that shows a firewall should be between Systems A and B. From a logical standpoint, all I can think of is to look at the firewall rulebase and look for rules containing source/destination IP addresses for A and B. However, I was thinking that it doesn't prove that there isn't other stuff in between (e.g. A->C->Firewall->B). How would you audit this? Also, how would you verify the physical location...is this even relevant given the size of LAN's/WAN's. I'm guessing a network map wouldn't give me what I need unless the firewall icon included a physical location, yes? Any tips would be greatly appreciated.

  2. #2
    Junior Member
    Join Date
    Nov 2016
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    Oh snap, just realized that perhaps this should have been posted in the firewalls sub-forum. I'm looking to build up technical IT audit skills (I've done the soft stuff like auditing for system change approvals, configuration, etc.), thought this would be a good place to post for a noob like myself. I've studied vendor-neutral stuff like Comptia Security+ and Network+ (thank you Professor Messer and Mike Myers!) and now I'm looking to translate this into hands-on, practical IT auditing.

  3. #3
    Super Moderator
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    Thread has been moved.

  4. #4
    Junior Member
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    Aug 2018
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    For your venture firewall usage methodology, you should know firewall/VPN position in the system, what number of you will need, and how to oversee and keep up your border security after you've effectively revealed your answer.

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