The following lines can be added to LocalSettings.php to limit authorizations
## User Permissions Added by Elizabeth Thomsen, 02/15/2007
# This snippet prevents new registrations from anonymous users
# (Sysops can still create user accounts)
$wgGroupPermissions[‘*’][‘createaccount’] = false;
# This snippet prevents editing from anonymous users
$wgGroupPermissions[‘*’][‘edit’] = false;
# This snippet suppresses the Edit link for sections
$wgDefaultUserOptions [‘editsection’] = 0;
## End of lines Added by Elizabeth Thomsen, 02/15/2007