[X2go-User] Failure - Server Key

Ivan Kabaivanov chepati at yahoo.com
Sun Oct 16 16:08:21 CEST 2011


On Sunday 16 October 2011 06:12:40 CACook at quantum-sci.com wrote:
> On Sunday, October 16, 2011 03:42:52 AM Ivan Kabaivanov wrote:
> > This happened to me.  Just a guess, have  you switched to newer openssh
> > +
> > openssl 1.x.x?  If so, openssh uses ecdsa-sha2-nistp256 keys by default,
> > and x2go doesn't.  You can either disable ecdsa on the server, or
> > delete the key from your known_hosts on the client, start x2goclient
> > and it should pick the correct key.
> 
> I guess I'm using the newer openssh, as I have ecdsa server keys in
> /etc/ssh.
> 
> First on the server I edited sshd.config and found all three keys were
> uncommented, so I commented out rsa and ecdsa, leaving only dsa.  Restarted
> the ssh server, and session manager on client machine, and tried new
> session but same error.  Then I renamed the two ecdsa keys, restarted
> again, but same error.
> 
> Why doesn't x2go support elliptic curve?  I'm using the one from Debian
> Testing (Wheezy): deb http://packages.x2go.org/debian wheezy heuler


I forgot to tell you that you also need to remove the server key from 
~HOME/.ssh/known_hosts.  x2go tries to use the keys from that file.  After 
removing the key (and enabling ssh-dsa keys on the server side and restarting 
sshd) x2go should work.

IvanK.



More information about the x2go-user mailing list