Hello everyone,

please disregard my previous mailing and consider this enhanced version ... (NOTE: dismiss it if needed as it hasn't yet been approved)

I have the following on my client when I connect to a server running the same ubuntu precise distribution:

$ cat .x2go/S-sylvain-52-1428522297_stDXFCE_dp24/sessions Loop: PANIC! The remote NX proxy closed the connection. Loop: PANIC! Failure negotiating the session in stage '7'. Loop: PANIC! Wrong version or invalid session authentication cookie.

$ lsb_release -d Description: Ubuntu 12.04.5 LTS

$ dpkg -l | egrep 'x2go|nxproxy' | perl -ne '@f=split; print "$f[1]\t$f[2]\n"' | column -t nxproxy 2:3.5.0.31-0~605~ubuntu12.04.1 x2goagent 2:3.5.0.31-0~605~ubuntu12.04.1 x2goclient 4.0.3.2-0~800~ubuntu12.04.1 x2goserver 4.0.1.19-0~1064~ubuntu12.04.1 x2goserver-extensions 4.0.1.19-0~1064~ubuntu12.04.1 x2goserver-xsession 4.0.1.19-0~1064~ubuntu12.04.1

Has anyone encountered this ? I had this working at some point and it appears a regression may be at play on the server side. I can replicate this on any ubuntu precise server within the same network and I can also replicate it when connecting to localhost!

I googled the problem and it seems to have been reported many years ago so perhaps someone on this list can provide some quick insight?

On my ubuntu server (also 12.04.5) I have the following :

$ dpkg -l | egrep 'x2go|nxproxy' | perl -ne '@f=split; print "$f[1]\t$f[2]\n"' | column -t nxproxy 2:3.5.0.31-0~605~ubuntu12.04.1 python-six 1.8.0-1~bpo70+1~0x2go~ubuntu12.04.1 x2goagent 2:3.5.0.31-0~605~ubuntu12.04.1 x2goclient 4.0.3.2-0~800~ubuntu12.04.1 x2goserver 4.0.1.19-0~1064~ubuntu12.04.1 x2goserver-compat 4.0.1.19-0~1064~ubuntu12.04.1 x2goserver-extensions 4.0.1.19-0~1064~ubuntu12.04.1 x2goserver-xsession 4.0.1.19-0~1064~ubuntu12.04.1

I changed loglevel=debug on the x2go server to look for clues but nothing caught my attention. Note that with the same client (running at home) I can connect to other servers running Debian squeeze and wheezy, on the same network as the ubuntu precise server (at work).

On my debian squeeze servers, I have the following:

$ dpkg -l | egrep 'x2go|nxproxy' | perl -ne '@f=split; print "$f[1]\t$f[2]\n"' | column -t libnx-x11 2:3.5.0.28-0x2go1+git20141113.546+squeeze.main.1 libssh-4 0.5.4-2~deb6+x2go2 libxcomp3 2:3.5.0.28-0x2go1+git20141113.546+squeeze.main.1 libxcompext3 2:3.5.0.28-0x2go1+git20141113.546+squeeze.main.1 libxcompshad3 2:3.5.0.28-0x2go1+git20141113.546+squeeze.main.1 nxagent 2:3.5.0.28-0x2go1+git20141113.546+squeeze.main.1 nxproxy 2:3.5.0.28-0x2go1+git20141113.546+squeeze.main.1 rdesktop 1.7.1-0~bpo60+x2go1 x2go-keyring 2012.07.23+squeeze~main~17~build1 x2goagent 2:3.5.0.28-0x2go1+git20141113.546+squeeze.main.1 x2goclient 4.0.3.1-0x2go1+git20141127.753+squeeze.main.1 x2godesktopsharing 3.1.1.1-0x2go1+git20140401.131+squeeze.main.1 x2goserver 4.0.1.18-0x2go1+git20141006.949+squeeze.main.1 x2goserver-compat 4.0.1.18-0x2go1+git20141006.949+squeeze.main.1 x2goserver-extensions 4.0.1.18-0x2go1+git20141006.949+squeeze.main.1 x2goserver-xsession 4.0.1.18-0x2go1+git20141006.949+squeeze.main.1

And on my debian wheezy servers, I have the following:

$ dpkg -l | egrep 'x2go|nxproxy' | perl -ne '@f=split; print "$f[1]\t$f[2]\n"' | column -t libnx-x11 2:3.5.0.27-0x2go1+git20140701.511+wheezy.main.1 libxcomp3 2:3.5.0.27-0x2go1+git20140701.511+wheezy.main.1 libxcompext3 2:3.5.0.27-0x2go1+git20140701.511+wheezy.main.1 libxcompshad3 2:3.5.0.27-0x2go1+git20140701.511+wheezy.main.1 nxagent 2:3.5.0.27-0x2go1+git20140701.511+wheezy.main.1 x2goagent 2:3.5.0.27-0x2go1+git20140701.511+wheezy.main.1 x2goserver 4.0.1.17-0x2go1+git20141003.946+wheezy.main.1 x2goserver-extensions 4.0.1.17-0x2go1+git20141003.946+wheezy.main.1 x2goserver-xsession 4.0.1.17-0x2go1+git20141003.946+wheezy.main.1

Thanks in advance for any help and x2go is a great piece of software BTW!

... hopefully, I can get it to work just as nicely on ubuntu.

Sylvain

Sylvain Milot (sylvain@bic.mni.mcgill.ca) (sylvain.milot@mcgill.ca) Brain Imaging Centre Montreal Neurological Institute 3801 University Street Webster 2B, Room 206 Montreal, Qc., Canada, H3A 2B4 Phone : (514) 398-4965, Fax: 398-8948 Mobile : (514) 712-1768 Office : 527 Av Des Pins O., Room 104 Montreal, Qc., H2W 1S4