From mboxrd@z Thu Jan  1 00:00:00 1970
From: Ralf Spenneberg <lists@spenneberg.org>
Subject: Re: iptables and the  RELATED option
Date: 12 Aug 2003 22:49:19 +0200
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To: Peter Marshall <peter.marshall@caris.com>
Cc: Netfilter <netfilter@lists.netfilter.org>

Am Die, 2003-08-12 um 20.53 schrieb Peter Marshall:
> Hi, My name is Peter Marshall.  I am having some problems letting ftp
> through my firewall without opening all of the ports.  I was trying to ge=
t
> RELATED to work, but for some reason it will not.  Here is an example of
> what my file looks like
>=20
> $TABLENAME -A FORWARD -d x.x.x.x -o eth2 -j mychain
>=20
> $TABLENAME -A mychain -m state --state ESTABLISHED,RELATED -j ACCEPT
> $TABLENAME -A mychain -j DROP
1.
You need a rule which allows new connections to the FTP-Server.

Additionally you have to load the module ip_conntrack_ftp
If using NAT you have to load ip_nat_ftp.

Cheers,

Ralf
--=20
Ralf Spenneberg
RHCE, RHCX

Book: Intrusion Detection f=FCr Linux Server   http://www.spenneberg.com
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