Joke de Buhr wrote:
> On Sunday 29 November 2009 14:22:47 João Santana wrote:
[...]
> > j...@ubuntu-laptop:~/Bazaar$ bzr branch lp:bmicalc
> > @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
> > @    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. The fingerprint for the RSA key sent by the remote host is
> > c7:5c:24:88:80:a3:b6:26:7a:5d:35:22:41:95:67:47.
[...]
> 
> The ssh host key has changed on the remote side. you can get rid of the 
> message the same way using ssh. Grab an editor, open the file 
> /home/joao/.ssh/known_hosts, remove the first line, save.

The host key for bazaar.launchpad.net has NOT changed!  It (still) has a
fingerprint of 9d:38:3a:63:b1:d5:6f:c4:44:67:53:49:2e:ee:fc:89.

So I would be heeding that warning, not ignoring it.  Somehow it appears
that when João Santana connects SSH to bazaar.launchpad.net it is going
to the wrong host, possibly because of a mistake like a misconfigured
DNS server, possibly because of something malicious.  But certainly
there is a problem, and it should not be ignored.

-Andrew.


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