Can we have better ssh fingerprint collision messages?

[valent.turkovic at gmail.com]

I work a lot with different kind of routers, openwrt and other
embedded systems, and they all usually use same address - 192.168.1.1,
so Ubuntu message is quite useful because gives me simple command that
I just copy/paste so I can get rid of old finderprint and I can
connect to new device with same IP but obviously different ssh
fingerprint.

On Mon, Nov 11, 2013 at 11:38 PM, David Howells <dhowells at redhat.com> wrote:
> valent.turkovic at gmail.com <valent.turkovic at gmail.com> wrote:
>
>> I really enjoy working with ssh on Ubuntu just for this simple reason,
>> they have user friendly ssh fingerprint collision messages:
>>
>> $ ssh root at 192.168.1.1
>> @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
>> @    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 a host key has just been changed.
>> The fingerprint for the RSA key sent by the remote host is
>> c0:3b:b2:60:a6:e2:5e:97:aa:ae:ec:d2:ca:ba:27:1b.
>> Please contact your system administrator.
>> Add correct host key in /home/valent/.ssh/known_hosts to get rid of
>> this message.
>> Offending RSA key in /home/valent/.ssh/known_hosts:8
>>
>>
>> I really miss this feature when I return back to Fedora.
>> How hard would be to make this behavior default for Fedora also?
>
> I see the message with Fedora.
>
> David
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