From: Ralf Spenneberg <lists@spenneberg.org>
To: Gilles Yue <gyue@novelgmt.intnet.mu>
Cc: Netfilter <netfilter@lists.netfilter.org>
Subject: RE: Help on IPTABLES
Date: 13 Oct 2003 15:23:04 +0200 [thread overview]
Message-ID: <1066051384.4193.61.camel@kermit> (raw)
In-Reply-To: <83055D4B014C9E478D2F04624B9E82CFD475@noveldc.novelgmt.mu>
Am Mon, 2003-10-13 um 14.09 schrieb Gilles Yue:
> Chain INPUT (policy DROP)
>
> target prot opt source destination
>
> RH-Lokkit-0-50-INPUT all -- 0.0.0.0/0 0.0.0.0/0
>
> ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp dpt:80
When establishing a connection with a webserver the packets in the INPUT
chain are coming from the webserver port 80, therefore spt:80 not dpt:80
Same to the rest with the exception of DNS. Here you did it correct:
> ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp spt:53
By the way, you get more info on the rules using
iptables -vnL
Cheers,
Ralf
--
Ralf Spenneberg
RHCE, RHCX
Book: Intrusion Detection für Linux Server http://www.spenneberg.com
IPsec-Howto http://www.ipsec-howto.org
Honeynet Project Mirror: http://honeynet.spenneberg.org
next prev parent reply other threads:[~2003-10-13 13:23 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-10-13 12:09 Help on IPTABLES Gilles Yue
2003-10-13 13:23 ` Ralf Spenneberg [this message]
-- strict thread matches above, loose matches on Subject: below --
2006-12-16 17:04 Help on Iptables wlagmay
2006-12-16 19:20 ` Pascal Hambourg
2006-12-17 12:08 ` wlagmay
2003-10-14 12:50 Help on IPTABLES Gilles Yue
2003-10-10 6:43 Gilles Yue
2003-10-09 12:24 Gilles Yue
2003-10-09 13:54 ` Rob Sterenborg
2003-10-14 6:59 ` Joel Newkirk
2003-10-09 12:20 info
2003-10-11 14:32 ` Leonardo Rodrigues Magalhães
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1066051384.4193.61.camel@kermit \
--to=lists@spenneberg.org \
--cc=gyue@novelgmt.intnet.mu \
--cc=netfilter@lists.netfilter.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.