Siebel Installation Guide for UNIX: Servers, Mobile Web Clients, Tools > Installing the Siebel Web Server Extension > Postinstallation Tasks for the SWSE >
Setting SWSE Directory Permissions
The Web server administrator and all Siebel users and groups should have read and execute permission on all SWSE virtual directories. If these permissions are not granted, login pages will not be rendered properly.
The user running the SWSE plug-in should have read and write permissions to the SWSE_ROOT/public/language directory on the Web server machine (where SWSE is installed), so that static public files can be cached on the Web server to enhance application performance.