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Re: [Full-disclosure] SSH brute force blocking tool

from [Brian Eaton] Network Security [Permanent Link]
Subject: Re: [Full-disclosure] SSH brute force blocking tool
Date: Mon, 27 Nov 2006 16:20:35 -0500 
On 11/27/06, J. Oquendo <sil@infiltrated.net> wrote:

There is no hocus pocus here. Look at /var/log/secure and fine the term
"error retrieving" and print the next line, 13th column. Then sort it and
print the unique entries into /tmp/hosts.deny. After you do this, compare
/tmp/hosts.deny with /etc/hosts.deny and put the differences not in
/etc/hosts.deny
into /etc/hosts.deny



Parsing malicious input with shell commands is like disarming land mines
with a hammer.

And doing it as root?  That's like disarming land mines with a hammer while
you're stark naked.

Regards,
Brian

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