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17 Oct 2007 Enabling Remote Access to the Installation System

You may access either graphical or text interfaces for the Redhat installation system from any other system. Access to a text mode display requires telnet, which is installed by default on Fedora systems. To remotely access the graphical display of an installation system, use client software that supports the VNC (Virtual Network Computing) display protocol. A number of providers offer VNC clients for Microsoft Windows and Mac OS, as well as UNIX-based systems.

The installation system supports two methods of establishing a VNC connection. You may start the installation, and manually login to the graphical display with a VNC client on another system. Alternatively, you may configure the installation system to automatically connect to a VNC client on the network that is running in listening mode.

Enabling Remote Access with VNC
To enable remote graphical access to the installation system, enter two options at the prompt:

linux vnc vncpassword=astrongpassword

The vnc option enables the VNC service. The vncpassword option sets a password for remote access. The example shown above sets the password as astrongpassword. The VNC password must be at least six characters long.

Specify the language, keyboard layout and network settings for the installation system with the screens that follow. You may then access the graphical interface through a VNC client. The installation system displays the correct connection setting for the VNC client:

Starting VNC...
The VNC server is now running.
Please connect to computer.mydomain.com:1 to begin the install...
Starting graphical installation...
Press <enter> for a shell

You may then login to the installation system with a VNC client. Start the VNC client Enter the server and display number in the VNC Server dialog. For the example above, the VNC Server is computer.mydomain.com:1.

This is possible on RedHat, Fedora and probably other distributions derived on these distributions like CentOS.

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24 May 2007 Tunneling ports with SSH

Using -L on the command line with SSh will bind a remote port to a local one. For instance, if you wanted to tunnel the port for a remote desktop (usually 5901) to a local machine, you would type the following

ssh -L 5901:localhost:5901 remote_ip

You could then access your remote desktop by connecting your VNC client to port 5901 on the local machine, and the data for the remote desktop would be tunneled through the SSH connection.

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