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Old 08-03-2008, 01:57 PM   #1
john test
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vista/ubuntu gedit across a ssh fails


On Vista Machine cmd prompt
Putty/SSH into linux box


root@james-desktop:/home/james# gedit
cannot open display:
Run 'gedit --help' to see a full list of available command line options.
root@james-desktop:/home/james# DISPLAY=:0.0 gedit
root@james-desktop:/home/james# DISPLAY=:0.0 gedit &
[2] 6846
root@james-desktop:/home/james#
So from above: Gedit cant open DISPLAY and fails
Setting DISPLAY to :0.0 and executing gedit gives no failure msg but doesn't open GEDIT on the Vista Screen
Adding a trailing Ampersand gives [2] 6846 and still fails to open Gedit on the vista screen

Any help will be appreciated
 
Old 08-03-2008, 02:09 PM   #2
Mr. C.
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Do you have X11Forwarding enabled ?
 
Old 08-03-2008, 02:17 PM   #3
john test
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What command would I need to execute to discover if I have X11 forwarding?
And can I execute the command from a Vista laptop across a putty ssh or do I need to travel to the linux box to execute?
Thank you for your rapid response
 
Old 08-03-2008, 02:19 PM   #4
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Wait, hold on....

If you want gedit to appear on your Vista system, you need to be running an X11 server on Vista.

[ stuff below applies only if you want to run gedit to a local x server ]

In your sshd_config file (probably in /etc/ssh) on the ssh server, there are configuration options for X11Forwarding:

X11Forwarding yes
#X11DisplayOffset 10
#X11UseLocalhost yes

You want X11Forwarding yes. Edit the file as root, add the option, and then restart the ssh server.

/etc/init.d/sshd restart

It is a good idea to have a couple of ssh connections to the server, so that if you make a mistake in the sshd_config file, you aren't locked out of the server.

Last edited by Mr. C.; 08-03-2008 at 02:24 PM.
 
Old 08-03-2008, 02:24 PM   #5
arizonagroovejet
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Do you have an X server running on the Vista machine? 'Cos you'll need one if you want to run graphical programs like gedit over ssh.
You could of course just use a non-graphical interface editor. If you're only used to GUI editors then pico is possibly the easiest non-graphical interface text editor to pick up and use. Certainly easier than vi or emacs, though not as powerful as either.
 
Old 08-03-2008, 02:36 PM   #6
john test
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Here is the content of /etc/ssh/ssh_config
I am unfamiliar with X Syntax but I see # symbols to the right of all entries. Some apps use that as a comment. Second line comes close to your X11forwarding yes
Do I need to edit that line to delete the # and change the No to Yes? if so what other changes do I need to make?

Host *
# ForwardAgent no
# ForwardX11 no
# ForwardX11Trusted yes
# RhostsRSAAuthentication no
# RSAAuthentication yes
# PasswordAuthentication yes
# HostbasedAuthentication no
# GSSAPIAuthentication no
# GSSAPIDelegateCredentials no
# GSSAPIKeyExchange no
# GSSAPITrustDNS no
# BatchMode no
# CheckHostIP yes
# AddressFamily any
# ConnectTimeout 0
# StrictHostKeyChecking ask
# IdentityFile ~/.ssh/identity
# IdentityFile ~/.ssh/id_rsa

Thanks for the help
 
Old 08-03-2008, 02:39 PM   #7
john test
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What do I need to do to get an Xserver running on the Vista machine?
 
Old 08-03-2008, 02:44 PM   #8
arizonagroovejet
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Quote:
Originally Posted by john test View Post
What do I need to do to get an Xserver running on the Vista machine?
Don't know exactly as I've never done it. Maybe http://www.straightrunning.com/XmingNotes/
 
Old 08-03-2008, 02:45 PM   #9
Mr. C.
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Well, you could use Cygwin and install/configure its X11 server.

See the list of available X servers for Windows:

http://en.wikipedia.org/wiki/X_Windo...mplementations

I've used each of the X servers from Cygwin, XWin32, and Exceed.

Last edited by Mr. C.; 08-03-2008 at 02:47 PM.
 
Old 08-03-2008, 03:17 PM   #10
john test
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Not sure just what to download to get cygwin. Hit a mirror site but the file names did not see to make much sense. Can you help?
 
Old 08-03-2008, 03:20 PM   #11
Mr. C.
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You use the setup.exe program, and select the packages you want.

http://www.cygwin.com/

The big Installing and Updating Cygwin area indicates how.

You might find xming a simpler option.
 
Old 08-03-2008, 03:58 PM   #12
john test
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Installed Cygwin on my Vista Laptop
I have two windows open 1 Putty 2 cygwin
Cygwin window can't find Gedit
putty can't open display
at the SSH windows

root@james-desktop:/etc/ssh# DISPLAY=:0.0 gedit &
[4] 6907
[3] Done DISPLAY=:0.0 gedit
root@james-desktop:/etc/ssh#
 
Old 08-03-2008, 04:04 PM   #13
Mr. C.
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With putty, you need to connect to your Linux box with SSH, and hae X11 forwarding enabled on both the client and server.

See: http://tldp.org/HOWTO/XDMCP-HOWTO/ssh.html
 
Old 08-03-2008, 04:20 PM   #14
john test
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In Post #6 above there is a copy of ssh_config
Do I delete the # symbol and change NO to Yes in line 2 and delete the # symbol in line 3?
 
Old 08-03-2008, 04:28 PM   #15
john test
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found a note to run start x did that and it appeared to install here is the result

root@james-desktop:/etc/ssh# startx
xauth: creating new authority file /root/.serverauth.6917
xauth: creating new authority file /root/.Xauthority
xauth: creating new authority file /root/.Xauthority

X: warning; process set to priority -1 instead of requested priority 0

Fatal server error:
Server is already active for display 0
If this server is no longer running, remove /tmp/.X0-lock
and start again.

root@james-desktop:/etc/ssh#
Will do more Reading :-)
 
  


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