From: pauloric@contatogs.com.br
To: netfilter@vger.kernel.org
Subject: Re: sudo /sbin/iptables -v -t filter -A INPUT -p tcp --dport 22 -s 124.225.122.167 -j REJECT does not stop ssh attack
Date: Wed, 13 Oct 2010 15:03:59 -0300 (BRT) [thread overview]
Message-ID: <3469375.485.1286993039640.JavaMail.root@mercurio> (raw)
In-Reply-To: <AANLkTimbhPn+S63HvtvhOMZemGY5tGyzk-b1gjQUg_K5@mail.gmail.com>
Hi
----- Mensagem original -----
> Sorry for the long subject.
>
> But I execute this on my system ...
>
> sudo /sbin/iptables -v -t filter -A INPUT -p tcp --dport 22 -s
> 124.225.122.167 -j REJECT does not stop ssh attack
instead of -A try -I as following:
sudo /sbin/iptables -v -t filter -A INPUT -p tcp --dport 22 -s 124.225.122.167 -j REJECT
Order is important for netfilter...80)
best regards
>
> ... yet message continue to scroll by in my /var/log/secure file
>
> Oct 13 10:33:27 localhost sshd[28222]: Failed password for root from
> 124.225.122.167 port 36421 ssh2
> Oct 13 10:33:27 localhost sshd[28223]: Received disconnect from
> 124.225.122.167: 11: Bye Bye
> Oct 13 10:33:28 localhost sshd[28227]: pam_unix(sshd:auth):
> authentication failure; logname= uid=0 euid=0 tty=ssh ruser=
> rhost=124.225.122.167 user=root
> Oct 13 10:33:30 localhost sshd[28227]: Failed password for root from
> 124.225.122.167 port 39871 ssh2
> Oct 13 10:33:30 localhost sshd[28228]: Received disconnect from
> 124.225.122.167: 11: Bye Bye
> Oct 13 10:33:32 localhost sshd[28232]: pam_unix(sshd:auth):
> authentication failure; logname= uid=0 euid=0 tty=ssh ruser=
> rhost=124.225.122.167 user=root
> Oct 13 10:33:34 localhost sshd[28232]: Failed password for root from
> 124.225.122.167 port 43158 ssh2
> Oct 13 10:33:34 localhost sshd[28233]: Received disconnect from
> 124.225.122.167: 11: Bye Bye
>
>
> The messages eventually do stop but I cannot tell if that is because
> iptables stopped it or the attacker just gave up?
>
>
> Is there something wrong with my version of iptables or is my iptables
> command no good?
>
> Thanks
> --
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--
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next prev parent reply other threads:[~2010-10-13 18:03 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-10-13 17:59 sudo /sbin/iptables -v -t filter -A INPUT -p tcp --dport 22 -s 124.225.122.167 -j REJECT does not stop ssh attack Red Cricket
2010-10-13 18:03 ` pauloric [this message]
2010-10-13 18:42 ` Jan Engelhardt
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