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#1 2020-03-25 17:46:22

ivdok
Member
From: Abu Dhabi
Registered: 2013-07-17
Posts: 60

X2Go + Xfce4 - "Failure negotiating the session in stage '7'."

For some reason this combination stopped working with following errors on client side:

"Info: Proxy running in server mode with pid '8391'.
Session: Starting session at 'Wed Mar 25 20:29:05 2020'.
Info: Using errors file '/home/ivdok/.x2go/S-ivdok-50-1585157284_stDXFCE_dp24/sessions'.
Info: Using stats file '/home/ivdok/.x2go/S-50/stats'.
Loop: WARNING! Overriding auxiliary X11 port with new value '1'.
Warning: Overriding auxiliary X11 port with new value '1'.
Info: Using abstract X11 socket in kernel namespace for accessing DISPLAY=:0.
Info: Connecting to remote host 'localhost:33507'.
Info: Connected to remote proxy on FD#5.
Loop: PANIC! The remote NX proxy closed the connection.
Error: The remote NX proxy closed the connection.
Loop: PANIC! Failure negotiating the session in stage '7'.
Error: Failure negotiating the session in stage '7'.
Loop: PANIC! Wrong version or invalid session authentication cookie.
Error: Wrong version or invalid session authentication cookie.
Session: Terminating session at 'Wed Mar 25 20:29:05 2020'.
Session: Session terminated at 'Wed Mar 25 20:29:05 2020'.
Connection timeout, aborting"

And on the server side debug logs are so dense I've uploaded them on a pastebin.
What I've tried so far:

  1. Reinstall X2Go server and recreate internal database.

  2. dbus-launch startxfce4.

  3. Clear /tmp/.x2go and /home/ivdok/.x2go

  4. Recreate DB once more as per #323.

  5. Create new user and login into new session as per #323.

None of these helped. Obviously SSH works, otherwise I could not have done these steps, so any ideas as to what the hell happens, how to further debug this without getting dirty with strace, and how to fix this? Issue is distro-specific since my other Debian/Ubuntu setups continue to work as usual.

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