SDB:Accessing the X server over the network

Version: 6.4

Symptom:

Since SuSE version 6.4 (in part also since 6.3) it isn't possible anymore to connect to xdm or kdm over the network.

Cause:

For improved security, remote access has been disabled by default.

Solution:

To reenable remote access again, insert a line containing a single * before line with the comment "#no host can get a login window" in the file /var/X11R6/lib/xdm/Xaccess. As an alternative, only enter the names of those machines for which access should be enabled.

Beginning with SuSE Linux 6.4, you also have to edit the file /var/X11R6/lib/xdm/xdm-config:

! SECURITY: do not listen for XDMCP or Chooser requests
! Comment out this line if you want to manage X terminals with xdm
  DisplayManager.requestPort:  0

Please add a comment sign (the exclamation mark) in front of the last line. This allows logging in from remote machines.

The line should then look like this:

! DisplayManager.requestPort:  0

<keyword>X,EXCEED,ACCESS,XDM,KDM,REMOTE,NETWORK,XSERVER,6.4</keyword>