Manual:$wgWhitelistEdit/de-formal

Details
If true, users must login to edit.


 *  It's not 100% safe, there could be a security hole using that one. Use at your own risks. 

MediaWiki Version 1.5 and onwards
This setting was deprecated in version 1.5.0, and replaced by, specifically the 'edit' permission.

To emulate the old effect of setting:

set:

If $wgWhitelistRead is set, you must also disable the 'read' permission for it to take effect on anonymous users: