full-disclosure - Re: SSH brute force blocking tool

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Message-ID: <242a0a8f0611271320q60d1f507hd929961db1decd59@mail.gmail.com>
Date: Mon, 27 Nov 2006 16:20:35 -0500
From: "Brian Eaton" <eaton.lists@...il.com>
To: full-disclosure <full-disclosure@...ts.grok.org.uk>
Subject: Re: SSH brute force blocking tool

On 11/27/06, J. Oquendo <sil@...iltrated.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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