Difference between revisions of "X11 Forwarding"
m |
(Added section and commands for users who install via express CD. Changed ssh_config to sshd_config) |
||
| (One intermediate revision by one other user not shown) | |||
| Line 3: | Line 3: | ||
===Prerequisites for remotely displaying applications=== | ===Prerequisites for remotely displaying applications=== | ||
| − | For | + | For X11 Forwarding to work it will require your Amahi server to have a X server installed. |
| + | |||
| + | If you installed Amahi via the express CD you can install the X server with the following commands: | ||
| + | |||
| + | ====Commands For Installing X Server on Express Installation==== | ||
| + | |||
| + | Become root: | ||
| + | |||
| + | su - | ||
| + | |||
| + | Enter your password for the root user | ||
| + | |||
| + | yum -y install Xorg | ||
| + | |||
| + | ====Configuring X11Forward on Amahi Server==== | ||
| + | |||
| + | Second is the ability to receive ssh connections (configured by default). Finally, ssh must be configured to allow X11 forwarding. Check ''/etc/ssh/ssh_config'' and make sure the directive is set: | ||
| + | |||
| + | |||
| + | X11Forward yes | ||
| − | |||
Once this is configured you are ready to forward application windows. | Once this is configured you are ready to forward application windows. | ||
| Line 11: | Line 29: | ||
From the client machine, where you want the application to be displayed, you ssh into the remote system so you have a command prompt. The can attained using the ssh command. When using the ssh command we need to use the ''-X'' flag, this tells ssh that we plan to tunnel x traffic through the tunnel: | From the client machine, where you want the application to be displayed, you ssh into the remote system so you have a command prompt. The can attained using the ssh command. When using the ssh command we need to use the ''-X'' flag, this tells ssh that we plan to tunnel x traffic through the tunnel: | ||
| − | + | ||
| + | ssh -X user@hda | ||
| + | |||
Enter your password at the login prompt. You should see the prompt change into ''[user@localhost ~]$'' Once logged in, run the following command to see a file window: | Enter your password at the login prompt. You should see the prompt change into ''[user@localhost ~]$'' Once logged in, run the following command to see a file window: | ||
| − | + | ||
| + | nautilus | ||
| + | |||
This should open a gnome file window as if on the server locally. | This should open a gnome file window as if on the server locally. | ||
| Line 21: | Line 43: | ||
===Trusted X11 Forwarding=== | ===Trusted X11 Forwarding=== | ||
| − | If the ''/etc/ssh/ | + | If the ''/etc/ssh/sshd_config'' file on the Amahi server contains the following line (set by default): |
| + | |||
| + | |||
| + | ForwardX11Trusted yes | ||
| − | |||
Then it's possible to use trusted X11 forwarding. Trusted X11 forwarding is slightly faster than untrusted because it doesn't engage the X11 security controls. The -Y flag is used when using trusted X11 forwarding: | Then it's possible to use trusted X11 forwarding. Trusted X11 forwarding is slightly faster than untrusted because it doesn't engage the X11 security controls. The -Y flag is used when using trusted X11 forwarding: | ||
| − | + | ||
| + | ssh -Y user@hda | ||
| + | |||
===Compressed X11 Forwarding=== | ===Compressed X11 Forwarding=== | ||
| Line 33: | Line 59: | ||
When using slower links, X11 data can be compressed using the ''-C'' flag: | When using slower links, X11 data can be compressed using the ''-C'' flag: | ||
| − | + | ||
| + | ssh -Y -C user@hda | ||
Latest revision as of 15:15, 4 September 2010
Contents
X11 Forwarding
Prerequisites for remotely displaying applications
For X11 Forwarding to work it will require your Amahi server to have a X server installed.
If you installed Amahi via the express CD you can install the X server with the following commands:
Commands For Installing X Server on Express Installation
Become root:
su -
Enter your password for the root user
yum -y install Xorg
Configuring X11Forward on Amahi Server
Second is the ability to receive ssh connections (configured by default). Finally, ssh must be configured to allow X11 forwarding. Check /etc/ssh/ssh_config and make sure the directive is set:
X11Forward yes
Once this is configured you are ready to forward application windows.
From the client machine, where you want the application to be displayed, you ssh into the remote system so you have a command prompt. The can attained using the ssh command. When using the ssh command we need to use the -X flag, this tells ssh that we plan to tunnel x traffic through the tunnel:
ssh -X user@hda
Enter your password at the login prompt. You should see the prompt change into [user@localhost ~]$ Once logged in, run the following command to see a file window:
nautilus
This should open a gnome file window as if on the server locally.
Trusted X11 Forwarding
If the /etc/ssh/sshd_config file on the Amahi server contains the following line (set by default):
ForwardX11Trusted yes
Then it's possible to use trusted X11 forwarding. Trusted X11 forwarding is slightly faster than untrusted because it doesn't engage the X11 security controls. The -Y flag is used when using trusted X11 forwarding:
ssh -Y user@hda
Compressed X11 Forwarding
When using slower links, X11 data can be compressed using the -C flag:
ssh -Y -C user@hda
