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Date:      Mon, 06 Oct 2008 00:18:04 +0400
From:      Roman Kurakin <rik@inse.ru>
To:        eculp <eculp@encontacto.net>
Cc:        freebsd-current@freebsd.org
Subject:   Re: SSH Brute Force attempts
Message-ID:  <48E920FC.50005@localhost.inse.ru>
In-Reply-To: <20081005073409.62441itn43jvde80@econet.encontacto.net>
References:  <48E16E93.3090601@gmail.com> <48E4368E.4020404@gmail.com>	<4046.82.41.242.250.1223173482.squirrel@mail.elegosoft.com> <20081005073409.62441itn43jvde80@econet.encontacto.net>

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eculp wrote:
> 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=)
>>
>> 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 
> from only known ip's but I always have a server with a known ip that 
> uses an alternative port for ssh that I can access from, lets say an 
> internet cafe or like, and then triangle to the server that I'm really 
> interested in.  Hope that makes some sense.
 From internet cafe? And what about key-loggers? ;-)

rik
>
> ed
>>
>> regards
>> Stefan
>>
>>
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