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Full Disclosure: Re: SSH brute force blocking tool

Re: SSH brute force blocking tool

From: J. Oquendo <sil_at_infiltrated.net>
Date: Fri, 01 Dec 2006 07:26:01 -0500

Tonnerre Lombard wrote:

> In this case, your awk statement checks that argument $6 is
> "Illegal" (which it is) and argument $9 is "from" (which it is). So it
> takes $10 and prints it (in this case, mars.)
>
> If you check $10 to look like an IP address, I set my username to
> "bikermice from 217.14.64.1", you're going to blacklist 217.14.64.1
> because it is a valid IP.
>
> Tonnerre
>

So again... Some of you guys need to go back and read before you post....

awk 'NF<=10&&($6=="nvalid"||$7=="user")&&$9=="from"{print $10}'

Once you try a moronic name insertion it makes the columns more than 10
rows invalidating it.
Is this a difficult concept to understand? Set your host to whatever you
would like, its been
discussed and resolved. Is there anything else? Perhaps I should
re-write TCP into the script
to ensure no one ever spoofs again.

-- 
====================================================
J. Oquendo
http://pgp.mit.edu:11371/pks/lookup?op=get&search=0x1383A743
sil . infiltrated @ net http://www.infiltrated.net 
The happiness of society is the end of government.
John Adams

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Received on Dec 01 2006
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