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Date:      Mon, 10 Jan 2005 18:07:14 -0600
From:      Chris <racerx@makeworld.com>
To:        artware <artware@gmail.com>
Cc:        freebsd-questions@freebsd.org
Subject:   Re: Blacklisting IPs
Message-ID:  <41E318B2.3020108@makeworld.com>
In-Reply-To: <fd091951050109222052228399@mail.gmail.com>
References:  <20050110035717.27062.qmail@web41008.mail.yahoo.com> <fd091951050109222052228399@mail.gmail.com>

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artware wrote:
> Hello again,
> 
> My 5.3R system has only been up a little over a week, and I've already
> had a few breakin attempts -- they show up as Illegal user tests in
> the /var/log/auth.log... It looks like they're trying common login
> names (probably with the login name used as passwd). It takes them
> hours to try a dozen names, but I'd rather not have any traffic from
> these folks. Is there any way to blacklist IPs at the system level, or
> do I have to hack something together for each daemon?
> 
> - ben
> _______________________________________________
> freebsd-questions@freebsd.org mailing list
> http://lists.freebsd.org/mailman/listinfo/freebsd-questions
> To unsubscribe, send any mail to "freebsd-questions-unsubscribe@freebsd.org"
> 
> 

Here's what I do -

as root: route -nq add -host xxx.xxx.xxx.xxx 127.0.0.1 -blackhole

To the attacker, it looks as if you dropped off the net.

-- 
Best regards,
Chris

To save disk space in your home directory, compress files you rarely
use with "gzip filename".
		-- Dru <genesis@istar.ca>



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