With the changelog of 2010-02-02 there is now a "View" - row available in the "Permissions" of the site admin available - but only for "NON _default+" categories !).
And the "landing" page" for visitors without the "View allowance" is called "category:_public".
Now it is possible to make the content of pages of a specified category "private" - visible only for specified groups of visitors:
- anonymous or
- Wikidot members ( logged in) or
- Members of the wiki alone.
- Admins and mods have always the permission to view all…
If you want an extra landing page you should name it ""(selected)xyz-category:_public" - this is a "hidden page" (the underscolre at the beginning) and it is displayed only if an "unauthorized visitor" try to reach such a "private" page.
The "landing page" can hold the relevant information like:
This area of the website is available to users with permission. If you'd like to access this (perhaps only wiki-internal) area, please contact site administrators.
You might already have the necessary permission — please sign in first.
Other relevant (glossary)information about categories:
http://community.wikidot.com/glossary:soft-category (Soft Category)
in our Handbook - the "site manager permissions" page: http://handbook.wikidot.com/en:site-manager-permissions