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Re: man in the middle attack ?



On 21/08/2012, lina <lina.lastname@gmail.com> wrote:
> On Tuesday 21,August,2012 04:29 AM, Dr Beco wrote:

>> @    WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED!     @
>> IT IS POSSIBLE THAT SOMEONE IS DOING SOMETHING NASTY!
>> Someone could be eavesdropping on you right now (man-in-the-middle
>> attack)!
>> It is also possible that the RSA host key has just been changed.
>> Please contact your system administrator.
>
> I met similar things many times, you may just simply
> vim /home/beco/.ssh/known_hosts
> delete the line 1 key there, or you may delete all
> and ssh again,

lina's instructions are correct, but they completely bypass the security of ssh.
Follow them only if you do not care about the security of your client
or the server,
and if you do not care about the warnings above. Otherwise, investigate why
the host now has a different security key since last time you accessed it.


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