On 06/05/2014 04:56 PM, Short, Kermit wrote:

Most likely this is due to the SSH server trying to utilize a HostKey encryption method that is not supported by X2Go. I'd recommend commenting out any sort of ECDSA or other elliptical curve based algorithm(/etc/ssh/sshd_config), restarting the SSH daemon, removing the host key entry from your client's ~/.ssh/known_hosts file, and trying again.

The main reason for my problem was that I did not generate the SSH keys consistently. The information on the X2Go web site and in the flyer I got at the CLT 2014 (which actually motivated me to try x2go) is in respect to the generation of the keys (at least for me as a first time user of x2go) not sufficient.

To solve the problem I threw out all generated keys (user on server, user on remote client) and followed the description in

Michael W. Lucas: SSH Mistery (ISBN 9781470069711)

Now I have the various types of keys on both machines. And with the correct settings in the session profile everything works, even automatically.

Thanks for your hints.

KDJ.