From owner-freebsd-net@FreeBSD.ORG  Mon Apr 21 09:27:06 2008
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From: "Fazal Ahmed Malik" <fam@solacetel.com>
To: <freebsd-net@freebsd.org>
Date: Mon, 21 Apr 2008 13:48:50 +0500
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Subject: Web server behind ipfw firewall
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Hi,

 

I need help for setting up web server behind IPFW firewall. I have Freebsd
6.0 working as router on LAN with transparent squid. Now I want to setup web
server to be running on private IP please help me in writing IPFW rules to
serve the purpose. Current IPFW rules are as under,

 

 

$fwcmd add divert natd all from any to any via vr0

$fwcmd add fwd $external_ip,8080 tcp from not me to any 80

#$fwcmd add fwd $internal_ip log tcp from any to me dst-port 80 in via vr0

#$fwcmd add fwd $internal_ip tcp from any to me dst-port 80 out via re0

$fwcmd add allow log tcp from any to any in tcpflags syn,fin

$fwcmd add check-state

$fwcmd add allow tcp from any to any out keep-state

$fwcmd add allow tcp from any to any via vr0 established

$fwcmd add allow tcp from any to any 21 setup

$fwcmd add allow tcp from any to any 22 setup

$fwcmd add allow tcp from any to any 23 setup

$fwcmd add allow tcp from any to any 43 setup

$fwcmd add allow tcp from any to me 80 setup

$fwcmd add allow tcp from any to any 110 setup

$fwcmd add allow tcp from any to any 143 setup

$fwcmd add allow tcp from any to any 443 setup

$fwcmd add allow tcp from any to any 789 setup

$fwcmd add reset log tcp from any to any 113 in recv vr0

$fwcmd add allow udp from any to any 53 out xmit vr0

$fwcmd add allow udp from any 53 to any in recv vr0

$fwcmd add 03000 allow icmp from me to any

$fwcmd add 04000 allow icmp from any to any

 

Thanks,

 

 

Fazal

 

 


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