From: Ralf Spenneberg <lists@spenneberg.org>
To: Stephan Kessler <stephankessler@gmx.de>
Cc: Netfilter <netfilter@lists.netfilter.org>
Subject: Re: Server can't send :-/
Date: 03 Sep 2003 15:43:20 +0200 [thread overview]
Message-ID: <1062596599.18242.19.camel@kermit> (raw)
In-Reply-To: <002b01c371ee$db4b0db0$0000fea9@kessler.local>
Am Mit, 2003-09-03 um 09.41 schrieb Stephan Kessler:
> Hi List,
>
> I got that Configuration of my Firewall:
> http://warpy.yomeganet.biz/fw.txt
>
> It seemed to be nice, everything worked but then i tried to initiate
> outbound Traffic from my Server via SSH. The result: I can't establish
> any connection from my to an another, except DNS (via UDP?). What did i
> wrong?
I suspect your machine is warpy.yomeganet.biz. The last input rule drops
all incoming tcp-traffic. You a just accepting traffic going to
22,80,21,20,etc.
Since I do not actually understand your ruleset, you just might want to
insert the following rule before this DROP rule
iptables -A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT
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:[~2003-09-03 13:43 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-09-03 7:41 Server can't send :-/ Stephan Kessler
2003-09-03 13:43 ` Ralf Spenneberg [this message]
2003-09-03 14:09 ` Stephan Kessler
2003-09-06 23:38 ` Alistair Tonner
-- strict thread matches above, loose matches on Subject: below --
2003-09-03 7:40 yomega.info - Stephan Kessler
2003-09-04 11:52 ` Cedric Blancher
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=1062596599.18242.19.camel@kermit \
--to=lists@spenneberg.org \
--cc=netfilter@lists.netfilter.org \
--cc=stephankessler@gmx.de \
/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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox