Things I tried, but did not work:
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)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 <http://alestic.com> Ubuntu 10.10 image, did you get the image from Canonical? brian mullan wrote:
---------- Forwarded message ---------- From: <x2go-dev-request@lists.berlios.de <mailto:x2go-dev-request@lists.berlios.de>> Date: Fri, Jan 21, 2011 at 3:29 AM Subject: X2go-dev Digest, Vol 25, Issue 19 To: x2go-dev@lists.berlios.de <mailto:x2go-dev@lists.berlios.de> Send X2go-dev mailing list submissions to x2go-dev@lists.berlios.de <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 <jagermeistermeister@gmail.com <mailto:jagermeistermeister@gmail.com>> To: x2go-dev@lists.berlios.de <mailto:x2go-dev@lists.berlios.de> Subject: [X2go-dev] x2go not working on ubuntu 10.10? Message-ID: <4D394375.7090300@gmail.com <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
Oops excuse me I use Ubuntu 9.10 karmic, not 9.04 as I said earlier.
jmm wrote:
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 <http://alestic.com> Ubuntu 10.10 image, did you get the image from Canonical? brian mullan wrote:
---------- Forwarded message ---------- From: <x2go-dev-request@lists.berlios.de <mailto:x2go-dev-request@lists.berlios.de>> Date: Fri, Jan 21, 2011 at 3:29 AM Subject: X2go-dev Digest, Vol 25, Issue 19 To: x2go-dev@lists.berlios.de <mailto:x2go-dev@lists.berlios.de> Send X2go-dev mailing list submissions to x2go-dev@lists.berlios.de <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 <jagermeistermeister@gmail.com <mailto:jagermeistermeister@gmail.com>> To: x2go-dev@lists.berlios.de <mailto:x2go-dev@lists.berlios.de> Subject: [X2go-dev] x2go not working on ubuntu 10.10? Message-ID: <4D394375.7090300@gmail.com <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
I just installed a client on an old windows XP computer I had lying around, there it does work. So presumably there is something wrong with the client. No idea what that could be though.
jmm wrote:
Oops excuse me I use Ubuntu 9.10 karmic, not 9.04 as I said earlier.
jmm wrote:
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 <http://alestic.com> Ubuntu 10.10 image, did you get the image from Canonical? brian mullan wrote:
---------- Forwarded message ---------- From: <x2go-dev-request@lists.berlios.de <mailto:x2go-dev-request@lists.berlios.de>> Date: Fri, Jan 21, 2011 at 3:29 AM Subject: X2go-dev Digest, Vol 25, Issue 19 To: x2go-dev@lists.berlios.de <mailto:x2go-dev@lists.berlios.de> Send X2go-dev mailing list submissions to x2go-dev@lists.berlios.de <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 <jagermeistermeister@gmail.com <mailto:jagermeistermeister@gmail.com>> To: x2go-dev@lists.berlios.de <mailto:x2go-dev@lists.berlios.de> Subject: [X2go-dev] x2go not working on ubuntu 10.10? Message-ID: <4D394375.7090300@gmail.com <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
It also works from ubuntu 9.04. However, I still would like to run it from my 9.10 box as this is my workstation :)
I thought it might be a firewall issue, so I tried sudo ufw disable
but still the problem persists.
jmm wrote:
I just installed a client on an old windows XP computer I had lying around, there it does work. So presumably there is something wrong with the client. No idea what that could be though.
jmm wrote:
Oops excuse me I use Ubuntu 9.10 karmic, not 9.04 as I said earlier.
jmm wrote:
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 <http://alestic.com> Ubuntu 10.10 image, did you get the image from Canonical? brian mullan wrote:
---------- Forwarded message ---------- From: <x2go-dev-request@lists.berlios.de <mailto:x2go-dev-request@lists.berlios.de>> Date: Fri, Jan 21, 2011 at 3:29 AM Subject: X2go-dev Digest, Vol 25, Issue 19 To: x2go-dev@lists.berlios.de <mailto:x2go-dev@lists.berlios.de> Send X2go-dev mailing list submissions to x2go-dev@lists.berlios.de <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 <jagermeistermeister@gmail.com <mailto:jagermeistermeister@gmail.com>> To: x2go-dev@lists.berlios.de <mailto:x2go-dev@lists.berlios.de> Subject: [X2go-dev] x2go not working on ubuntu 10.10? Message-ID: <4D394375.7090300@gmail.com <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
I assume you can SSH on the box. ;-)
Morty
Am 21.01.2011 18:10, schrieb jmm:
It also works from ubuntu 9.04. However, I still would like to run it from my 9.10 box as this is my workstation :)
I thought it might be a firewall issue, so I tried
sudo ufw disable
but still the problem persists.jmm wrote:
I just installed a client on an old windows XP computer I had lying around, there it does work. So presumably there is something wrong with the client. No idea what that could be though.
jmm wrote:
Oops excuse me I use Ubuntu 9.10 karmic, not 9.04 as I said earlier.
jmm wrote:
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 <http://alestic.com> Ubuntu 10.10 image, did you get the image from Canonical? brian mullan wrote:
---------- Forwarded message ---------- From: <x2go-dev-request@lists.berlios.de <mailto:x2go-dev-request@lists.berlios.de>> Date: Fri, Jan 21, 2011 at 3:29 AM Subject: X2go-dev Digest, Vol 25, Issue 19 To: x2go-dev@lists.berlios.de <mailto:x2go-dev@lists.berlios.de> Send X2go-dev mailing list submissions to x2go-dev@lists.berlios.de <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 <jagermeistermeister@gmail.com <mailto:jagermeistermeister@gmail.com>> To: x2go-dev@lists.berlios.de <mailto:x2go-dev@lists.berlios.de> Subject: [X2go-dev] x2go not working on ubuntu 10.10? Message-ID: <4D394375.7090300@gmail.com <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
Yes ;-)
Sorry, I meant I disabled the firewall on the client, maybe it was blocking the connections to the tunneled port on localhost (I think it is localhost:30000 or something). But it appears it wasn't.
Moritz Struebe wrote:
I assume you can SSH on the box. ;-)
Morty
Am 21.01.2011 18:10, schrieb jmm:
It also works from ubuntu 9.04. However, I still would like to run it from my 9.10 box as this is my workstation :)
I thought it might be a firewall issue, so I tried
sudo ufw disable
but still the problem persists.jmm wrote:
I just installed a client on an old windows XP computer I had lying around, there it does work. So presumably there is something wrong with the client. No idea what that could be though.
jmm wrote:
Oops excuse me I use Ubuntu 9.10 karmic, not 9.04 as I said earlier.
jmm wrote:
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 <http://alestic.com> Ubuntu 10.10 image, did you get the image from Canonical? brian mullan wrote:
> > > ---------- Forwarded message ---------- > From: <x2go-dev-request@lists.berlios.de > <mailto:x2go-dev-request@lists.berlios.de>> > Date: Fri, Jan 21, 2011 at 3:29 AM > Subject: X2go-dev Digest, Vol 25, Issue 19 > To: x2go-dev@lists.berlios.de <mailto:x2go-dev@lists.berlios.de> > > > Send X2go-dev mailing list submissions to > x2go-dev@lists.berlios.de > <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 <jagermeistermeister@gmail.com > <mailto:jagermeistermeister@gmail.com>> > To: x2go-dev@lists.berlios.de <mailto:x2go-dev@lists.berlios.de> > Subject: [X2go-dev] x2go not working on ubuntu 10.10? > Message-ID: <4D394375.7090300@gmail.com > <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 > >