Firewall Policy
in [Firewalls]
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From: Jens Hoffmann on 31 Mar 2008 14:39 > (1) What will be size of the firewall policy for an enterprise > network. Depends on the needs of the specific enterprise. Can be between 1 or 2 rules to hundreds of rules and a couple of firewalls with different rules each. > (2) What rules in general contain in the rule set i.e., accept. or > deny A sensible decision would be to deny any communication which is not explicitly allowed and wanted. > (3) What are rules which are at the top of the rule set and which one > are the end of the rule set, You are implying a precedence in ordering the rules, which might not be present in all firewalls. > (4) and why the rules at the bottom of the ruleset have the lowest > priority than the rules at the top of the ruleset. Many firewalls only process the rules top to bottom until they find a match and then stop processing. Again, this might not be true for all firewalls. I personally like: ISBN-13: 978-0201634662 as an introductional book. Cheers, Jens
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