Date: Tue, 19 Aug 2003 14:31:55 -0400 From: Lucas Holt <luke@foolishgames.com> To: freeBSD-Questions@FreeBSD.ORG Subject: Firewall rules for servers, UDP Message-ID: <68D72AEE-D273-11D7-A8D3-0030656DD690@foolishgames.com>
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I want to setup a firewall (ipfw) on my freebsd 4.8 p3 server. The machine runs web, ftp, ssh, dns, smtp, and imap to the outside world. Does anyone have any links to example rules for servers? (I've already looked at the handbook and man file) My problem lies in UDP rules. I think I have TCP figured out. My first attempt blocked off DNS queries from the machine outward. I could query the DNS server, but apps could not do lookups. i figure it has something to do with ports above 1024, but I'm not sure how to define a rule with multi ports in a range, plus I don't know how high to go above 1024. Is this the right action? Ideas on syntax? Lucas Holt Luke@FoolishGames.com ________________________________________________________ FoolishGames.com (Jewel Fan Site) JustJournal.com (Free blogging) "Only two things are infinite, the universe and human stupidity, and I'm not sure about the former." - Albert Einstein (1879-1955)
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