From owner-freebsd-security  Fri Jun  9  4:30: 9 2000
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Date: Fri, 9 Jun 2000 06:27:56 -0500
Subject: Firewall Problem
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I have enabled the simple firewall configuration on my kernel (FreeBSD 3.4). I
only allow ftp 21, and ssh 22 as incoming connections. I am using postfix
instead of sendmail, yet incoming mail connections occur. Why?

I also use natd to allow my private network out.

When I run a nmap I also see the sunrpc port 111, and X at 6000.

Please advise.

George




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