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Date:      Sun, 05 Oct 2008 07:34:09 -0500
From:      eculp <eculp@encontacto.net>
To:        freebsd-current@freebsd.org
Subject:   Re: SSH Brute Force attempts
Message-ID:  <20081005073409.62441itn43jvde80@econet.encontacto.net>
In-Reply-To: <4046.82.41.242.250.1223173482.squirrel@mail.elegosoft.com>
References:  <48E16E93.3090601@gmail.com> <48E4368E.4020404@gmail.com> <4046.82.41.242.250.1223173482.squirrel@mail.elegosoft.com>

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Quoting sk@elegosoft.com:

> mornin'
>
>  Rich Healey wrote:
>>> Recently I'm getting a lot of brute force attempts on my server, in the
>>> past I've used various tips and tricks with linux boxes but many of them
>>> were fairly linux specific.
>
>
> disable pasword authentication OR use very strong passwords (24 chars)
> OR use OTP
>
> if it is applicable you could limit access by hosts (from=3D)
>
> nothing of the above is linux or BSD specific
>
> btw. Software to delay Login Attempts could be tricked.
>
>> Personally I find that changing the port to anything other than 22 stops
>> a lot of the skiddie brute force attacks.  Thats not to say you
>> shouldn't use something else as well - but it is something.
>
> it works for one of my servers too, but is security by obscurity

It worked for me also but in addition I have started accepting ssh =20
from only known ip's but I always have a server with a known ip that =20
uses an alternative port for ssh that I can access from, lets say an =20
internet cafe or like, and then triangle to the server that I'm really =20
interested in.  Hope that makes some sense.

ed
>
> regards
> Stefan
>
>
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