Anders Bruun Olsen | 24 Apr 10:40 2013
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Re: bug 106 - SSH Host Key Validation fails when ECDSA is already known

For me, removing the key with 'ssh-keygen -R' works fine to make x2goclient stop complaining. When x2goclient adds a host-key for me, it adds to ~/.ssh/known_hosts.
Have you made sure you removed all versions of the hostname? If your server is called server.domain.tld, be sure to remove both 'server' and 'server.domain.tld' with 'ssh-keygen -R'. Alternatively you can delete ~/.ssh/known_hosts, which will mean having to re-accept host-keys for all other hosts you normally ssh into.


2013/4/24 Pascal d'Hermilly <pascal-qxmA0yf9fwHUuOfXrH8iyw@public.gmane.org>
How do I remove the host key?

This bug is quite annoying. Especially because it's easy to trigger and the prompt dialog doesn't explaint how to remove the existing key.
http://bugs.x2go.org/cgi-bin/bugreport.cgi?bug=106

I already tried 'ssh-keygen -R [host]' with no effect. and according to the bug report this is not how it's done anymore...

Pascal

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Anders Bruun Olsen
It-ansvarlig
Det Danske Sprog- og Litteraturselskab
(Society for Danish Language and Literature)
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<div dir="ltr">For me, removing the key with 'ssh-keygen -R' works fine to make x2goclient stop complaining. When x2goclient adds a host-key for me, it adds to ~/.ssh/known_hosts.<div>Have you made sure you removed all versions of the hostname? If your server is called server.domain.tld, be sure to remove both 'server' and 'server.domain.tld' with 'ssh-keygen -R'. Alternatively you can delete ~/.ssh/known_hosts, which will mean having to re-accept host-keys for all other hosts you normally ssh into.</div>
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<div class="gmail_extra">
<br><br><div class="gmail_quote">2013/4/24 Pascal d'Hermilly <span dir="ltr">&lt;<a href="mailto:pascal <at> dhermilly.dk" target="_blank">pascal@...</a>&gt;</span><br><blockquote class="gmail_quote">

    

  <div text="#000000" bgcolor="#FFFFFF">

    How do I remove the host key?<br><br>
    This bug is quite annoying. Especially because it's easy to trigger
    and the prompt dialog doesn't explaint how to remove the existing
    key.<br><a href="http://bugs.x2go.org/cgi-bin/bugreport.cgi?bug=106" target="_blank">http://bugs.x2go.org/cgi-bin/bugreport.cgi?bug=106</a><br><br>
    I already tried 'ssh-keygen -R [host]' with no effect. and according
    to the bug report this is not how it's done anymore...<span class="HOEnZb"><br><br>
    Pascal<br></span>
</div>

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<br><br clear="all"><div><br></div>-- <br>Anders Bruun Olsen<br>
It-ansvarlig<br>Det Danske Sprog- og Litteraturselskab<br>(Society for Danish Language and Literature)<br>
</div>
</div>

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