Extension:PrivatePageProtection

The PrivatePageProtection extension implements a way to restrict access to specific pages using a parser function. Using that parser function, the user groups that should have access to the page can be listed directly in the page. To restrict access to a page, use the allow-groups function:

would restrict access to the sysop group.

restricts access to members of the autoconfirmed and emailconfirmed groups.

Note that user can not save a page which restricts access to groups the user does not belong to. That is, users can not lock themselves out of pages.