New subject: [X2go-dev] x2go not working on ubuntu 10.10?

21 Jan 2011

      Things I tried, but did not work:

check if user is a member of "x2gousers" group in /etc/group
check if user is a member of "fuse" group in /etc/group
reset password of user to make sure not entering wrong password
set DisallowTCP to false in /etc/gdm/gdm.schemas
remove "-nolisten tcp" from /etc/X11/xinit/xserverrc
run the command xhost +x (from the command line it gives an error
"xhost: unable to open display """ caused by no active display (and
therefore no $DISPLAY environment variable), so I also tried entering
this from within an VNC session and the command completed normally, also
tried this with an Xvfb xsession)
allowed login with passwords in /etc/ssh/sshd_config
restart ssh service
restart EC2 instance
tried installing packages x2goserver-home, x2goserver-one, x2goserver
(and removed installations between trying different packages)

When I tried different NX servers, I always used the corresponding
client (I have been careful not to mix up different clients with
different servers). For x2goserver I am using x2goclient from the
repository, I am using it on Ubuntu 9.04 desktop 64-bit edition. My
settings are:
name: test
hostname: <EC2 public dns here>
login: ubuntu
ssh port: 22
use rsa/dsa key for SSH connection: <tried different settings, tried to
leave it empty, tried the key I got from amazon, tried a key which was
sitting in ~/.ssh/id_rsa; tried all possibilities with and without password>
session type: GNOME
In all cases the error on the server stays the same.
brian mullan wrote:
...
I've been  using AMI's from Alestic or one's I build myself.   But
x2go's been working solid.
So you did all the normal things like change /etc/ssh/sshd_config
to allow login with passwords
and the user is a member of x2gousers 'group'
etc
On Fri, Jan 21, 2011 at 5:21 AM, jmm <jagermeistermeister@gmail.com
<mailto:jagermeistermeister@gmail.com>> wrote:
Yes, it is an Ubuntu Server AMI with ubuntu-desktop installed, the
desktop is working with VNC so that part seems to have gone OK.

FYI it was an alestic.com &lt;http://alestic.com> Ubuntu 10.10 image,
did you get the image from Canonical?

brian mullan wrote:
...
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From: &lt;x2go-dev-request@lists.berlios.de
&lt;mailto:x2go-dev-request@lists.berlios.de>>
Date: Fri, Jan 21, 2011 at 3:29 AM
Subject: X2go-dev Digest, Vol 25, Issue 19
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       x2go-dev@lists.berlios.de &lt;mailto:x2go-dev@lists.berlios.de>
Note sure what you are doing but I've got quite a few ubuntu
10.10 servers on amazon
that I connect to using x2go.     Lack of the video card on those
AWS EC2 machines
makes no difference in regards to x2go.

But you have installed a "desktop" on those AWS instances?

If you created an instance from an Ubuntu Server AMI then you
would need to

/sudo apt-get install ubuntu-desktop/

or install some "light" desktop.

------------------------------

Message: 4
Date: Fri, 21 Jan 2011 09:27:33 +0100
From: jmm &lt;jagermeistermeister@gmail.com
&lt;mailto:jagermeistermeister@gmail.com>>
To: x2go-dev@lists.berlios.de &lt;mailto:x2go-dev@lists.berlios.de>
Subject: [X2go-dev] x2go not working on ubuntu 10.10?
Message-ID: &lt;4D394375.7090300@gmail.com
&lt;mailto:4D394375.7090300@gmail.com>>
Content-Type: text/plain; charset="iso-8859-1"; Format="flowed"

Hi,

I tried to get this working all night, but it seems there is no
way to
connect to an ubuntu 10.10 installation using x2go (package
x2goserver-home). When trying to connect, x2goagent is
complaining about
not being able to open a display (in the session log). The
machine is an
Amazon EC2 instance, which has no video card. I suspect this is
causing
the trouble. I have read it was working on ubuntu 10.04 by the
way, as
in http://blog.restbackup.com/how-to-use-amazon-ec2-as-your-desktop

I also tried freenx, neatx and nxserver (from nomachine), and
they all
give similar errors. Tightvncserver on the other hand does work,
maybe
that's not so useful information, but just in case.

The server log says:

$ cat session.log
/usr/bin/x2goagent: line 1: -e: command not found

NXAGENT - Version 3.4.0

Copyright (C) 2001, 2007 NoMachine.
See http://www.nomachine.com/ for more information.

Info: Agent running with pid '3065'.
Session: Starting session at 'Fri Jan 21 00:42:15 2011'.
Info: Proxy running in server mode with pid '3065'.
Info: Waiting for connection from 'localhost' on port '30001'.
Info: Accepted connection from '127.0.0.1'.
Warning: Connected to remote version 3.2.0 with local version 3.4.0.
Info: Connection with remote proxy completed.
Info: Using ADSL link parameters 512/24/1/0.
Info: Using agent parameters 5000/10/50/0/0.
Info: Using cache parameters 4/4096KB/8192KB/8192KB.
Info: Using pack method '16m-jpeg-9' with session
'unix-kde-depth_24'.
Info: Using ZLIB data compression 1/1/32.
Info: Using ZLIB stream compression 4/4.
Info: No suitable cache file found.
Info: Listening to X11 connections on display ':50'.
Warning: The channel for FD#5 channel ID#1 was not marked as
finishing.
Error: Aborting session with 'X2goagent: Unable to open display
'nx/nx,options=/home/ubuntu/.x2go/C-ubuntu-50-1295570534_stDGNOME_dp24/options:50''.
Session: Aborting session at 'Fri Jan 21 00:42:24 2011'.
Session: Session aborted at 'Fri Jan 21 00:42:24 2011'.
Warning: Signals were not blocked in process with pid '3065'.
Info: Your session has died before reaching an usable state.
Info: This can be due to the remote X server refusing access to
the client.
Info: Please check the authorization provided by your X application.
Info: Waiting the cleanup timeout to complete.

Client (x2goclient) log says:

NXPROXY - Version 3.2.0

Copyright (C) 2001, 2007 NoMachine.
See http://www.nomachine.com/ for more information.

Info: Proxy running in client mode with pid '7391'.
Session: Starting session at 'Fri Jan 21 02:29:02 2011'.
Info: Connecting to remote host 'localhost:30001'.
Info: Connection to remote proxy 'localhost:30001' established.
Warning: Connected to remote version 3.4.0 with local version 3.2.0.
Warning: Consider checking http://www.nomachine.com/ for updates.
Info: Connection with remote proxy completed.
Warning: Unrecognized session type 'unix-kde-depth_24'. Assuming
agent
session.
Info: Using ADSL link parameters 512/24/1/0.
Info: Using cache parameters 4/4096KB/8192KB/8192KB.
Info: Using pack method '16m-jpeg-9' with session
'unix-kde-depth_24'.
Info: Using ZLIB data compression 1/1/32.
Info: Using ZLIB stream compression 4/4.
Info: No suitable cache file found.
Info: Forwarding X11 connections to display ':0.0'.
Session: Session started at 'Fri Jan 21 02:29:06 2011'.
Error: Connection to ':0.0' failed. Error is 111 'Connection
refused'.Session: Terminating session at 'Fri Jan 21 02:29:15 2011'.
Info: Your session was closed before reaching a usable state.
Info: This can be due to the local X server refusing access to
the client.
Info: Please check authorization provided by the remote X
application.
Session: Session terminated at 'Fri Jan 21 02:29:15 2011'.

I'd really like to try NX, since it appearantly works faster than
VNC.
Please advice.

Kind regards,

jmm

Re: [X2go-dev] x2go not working on ubuntu 10.10?