Hello ALL!

You just must use the utility 'DenyHosts', and all Your problems will be
solved!
DenyHosts the remarkable utility! It's protects only service ssh, and
anything more.
It is easy in adjustments and very effective in work.

You can find this utility in a collection of ports.

http://denyhosts.net/ 


Best regards,
Masyukevich Maksim
SPIRIT DSP, www.spiritDSP.com/voip, Embedded Voice Experience
SeeStorm, www.SeeStorm.com, Synthetic Video Conferencing
TeamSpirit - Award-Winning Multi-Point Voice Conferencing Engine

-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Leo L. Schwab
Sent: Monday, November 13, 2006 9:05 AM
To: freebsd-questions@freebsd.org
Subject: Blocking SSH Brute-Force Attacks: What Am I Doing Wrong?

        I recently installed FreeBSD 6.1 on my gateway.  It replaced an
installation of FreeBSD 4.6.8 (fresh install, not an upgrade) on which I
had disabled the SSH server.  Since all the bugs in SSH are fixed now (
:-) ), I thought I'd leave the server on, and am somewhat dismayed to
discover that I now get occasional brute-force/dictionary attacks on the
port.

        A little Googling revealed a couple of potentially useful tools:
'sshit' and 'bruteblock', both of which notice repeated login attempts
from a given IP address and blackhole it in the firewall.  I first tried
'sshit', but after a couple days, I noticed in my daily reports that I
was still getting lengthy bruteforce attempts, suggesting the 'sshit'
was not working.

        So I uninstalled 'sshit' and installed 'bruteblock'.  But again
a couple days later, the logs showed lengthy bruteforce attempts going
unblocked.

        The relevant lines from my /etc/syslog.conf file are:

----
auth.info;authpriv.info                         /var/log/auth.log
auth.info;authpriv.info         | exec /usr/local/sbin/bruteblock -f
/usr/local/etc/bruteblock/ssh.conf
----

        Any hints as to what I might be doing wrong?

                                        Thanks,
                                        Schwab
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