Fedora 7~17 XDMCP Configuration

1. Display manager configuration

  • Change runlevel to 5
    Open /etc/inittab and set the initial runlevel to 5 as following:

    id:5:initdefault:
  • Configure GDM

    If you are using kdm, skip this section and go to 'Configure KDM' section below.

    Open the following GDM configuration file

    /etc/X11/gdm/gdm.conf (Fedora Core 4 and prior releases)
    /etc/gdm/custom.conf (Fedoar Core 5 and later releases)

    and set the Enable to 1 in the [xdmcp] section and DisallowTCP to false in the [security] section like the following example:

    [xdmcp]
    Enable=1
    
    [security]
    DisallowTCP=false
  • Configure KDM
    If you are using gdm, you can skip this step.

    1. Open /etc/X11/xdm/xdm-config comment out the "requestPort" option as following:

    DisplayManager.requestPort: 0 ==>
    !DisplayManager.requestPort: 0


    2. Open /etc/X11/xdm/Xaccess and remove the initial "#" character for the following line:

    #* #any host can get a login window ==>
    * #any host can get a login window


    3. Open /etc/kde/kdm/kdmrc and set the Enable entry to true in the [xdmcp] section as following.

    [xdmcp]
    Enable=true

2. Reboot the remote host


# init 3; init 5


3. Firewall (TCP/UDP Ports) Configuration and start Xmanager

  • Open UDP port 177 from the PC to the remote host direction.
  • Open incoming TCP ports 6000~6010 from the remote host to your PC.