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From: Binish A R <binishar@poornam.com>
To: netfilter@lists.netfilter.org
Subject: iptables LOG options
Date: Tue, 24 May 2005 09:08:15 +0530	[thread overview]
Message-ID: <4292A1A7.3020401@poornam.com> (raw)

Hello,

I am trying to write my custom firewall rules.
I want to drop all outgoing ssh for non root users and log any such attempts at the same time.
I want to log the username trying to do that. What option should I give?

The following won't definitely work.

iptables -I OUTPUT -p tcp --dport 22  -m owner ! --uid-owner root -j LOG --log-prefix "$USER NO SSH ALLOWED"

because the shell expands $USER variable immediately.

Is there any other option to find the value of owner that get matched by the below rule:


iptables -I OUTPUT -p tcp --dport 22  -m owner ! --uid-owner root


Any help is much appreciated.


Thanks and Regards,

Binish




             reply	other threads:[~2005-05-24  3:38 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-05-24  3:38 Binish A R [this message]
2005-05-24  4:00 ` iptables LOG options Robert Vangel
2005-05-24  4:17   ` Binish A R
2005-05-24  5:01     ` Robert Vangel
2005-05-24  5:16       ` Binish A R
2005-05-24  5:30         ` Robert Vangel
2005-05-24  5:39           ` Binish A R
2005-05-24 14:43       ` Taylor, Grant
2005-05-25  6:55         ` R. DuFresne

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