[Mediawiki-l] How to secure new wiki?

[Jason Davies]

>>I've read this page:
>>
>>http://meta.wikimedia.org/wiki/Documentation:Security
>>
>>but I'd like to know how to require editors to log in first, and how 
>to
>>disable account creation.
>
>Add the following lines to LocalSettings.php: 
># Prevent new user
>registrations - only users with sysop status can 
># create users.
>$wgWhitelistAccount = array ( "sysop" => 1 ); 
># You must be a logged
>in user to edit pages.  Combining this
> # restriction with the previous
>restriction means we control who can 
># edit pages. $wgWhitelistEdit =
>true;


I finally got round to doing this (without the messy mail indentation
etc) but it doesn't seem to have had any effect. We're running 1.3.1 for
various reasons. 

Is there a time lag for the changes to be implemented perhaps? any other
clues?:-) thanks. the spammers have been getting busy...