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Root login to kdm still possible even if disabled

This document (7007124) is provided subject to the disclaimer at the end of this document.


SUSE Linux Enterprise Desktop 11 Service Pack 1


In order to deny root access to KDEs displaymanager kdm, the option AllowRootLogin in /usr/share/kde4/config/kdm/kdmrc was set to false but root is still able to login.


Root cause:

/usr/share/kde4/config/kdm/kdmrc is the configuration file for kdm and provided by the kdm package. It comes already with AllowRootLogin=false set but /usr/share/kde4/apps/kdm/  sets ALLOW_ROOT_LOGIN="true" . With this value it creates /var/adm/kdm/kdmrc.sysconfig which gets read by kdm upon startup and enables root login even if set to false.

As a temporary solution edit the file /usr/share/kde4/apps/kdm/ and change line 32 from ALLOW_ROOT_LOGIN="true" to false .


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  • Document ID:7007124
  • Creation Date: 29-Oct-2010
  • Modified Date:28-Sep-2022
    • SUSE Linux Enterprise Desktop

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