Joe

I saw your post: https://lists.berlios.de/pipermail/x2go-user/2012-November/001107.html

and wasn't sure if anyone responded to you yet.

that error is caused by sshd_config file entry in Ubuntu which for some reason seems to change its default from release to release (at least for me).

in /etc/ssh/ssd_config

Ubuntu defaults to the following:

# Change to yes to enable challenge-response passwords (beware issues with # some PAM modules and threads) ChallengeResponseAuthentication no

# Change to no to disable tunnelled clear text passwords #PasswordAuthentication yes

You will need to change:

ChallengeResponseAuthentication no to ChallengeResponseAuthentication yes

and uncomment the following by removing the Hash sign: #PasswordAuthentication yes

then restart ssh

         sudo /etc/init.d/ssh restart

also NOTE that for some reason on some Ubuntu upgrades I have seen the "PasswordAuthentication" entry have any one of the 2 following defaults

1. #PasswordAuthentication yes
2. PasswordAuthentication no

Both of which make "PasswordAuthentication no" the active default.

But with x2go if you want to use login with User ID and Password entry by a user on the x2go client you have to allow it (set it to yes).

Brian