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Re: Writing firewall ruleserts ... Recommend good procedure and resource for ports lookup?
From: Devdas Bhagat <dvb () users sourceforge net>
Date: Fri, 16 May 2003 00:22:48 +0530

On 14/05/03 22:02 +0100, Mark (fat) wrote:
I have to write firewall rulesets for a pair of back to back dual vendor
firewalls with multiple DMZ's from each.

Can anyone recommend a good procedure to use. Opensource would be great
but you cant really beat a good book.
Standard rules:
Default everything to closed and see what breaks, open ports as
required. "Building Internet Firewalls" (O'Reilly and Associates) is a
good book to start with.

Also can anyone recommend a good resource for translating services into
ports etc
grep portnumber /etc/services

Devdas Bhagat

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