Hi Karl, Thank you for your response! I took your example but it didn't work for me: I edited /etc/ssh/sshd_config on the server and restarted ssh, but X2GO still complained with the same kex error, but Pyhoca is still OK. I'll take a closer read and will try it again soon; maybe I messed up somehwere.
From: "KARL A. WOELFER" <kwoelfer@uw.edu>
Hello - Here is a link with some background, which describes two workarounds :
http://permalink.gmane.org/gmane.linux.terminal-server.x2go.user/2368
You would add this to your sshd_config file on the client (Linux) machine, then restart ssh
# KexAlgorithms curve25519-sha256@libssh.org,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group14-sha1,diffie-hellman-group-exchange-sha1,diffie-hellman-group1-sha1
I hope this helps.
- Karl