Quick and Dirty Guide to Setting up Access Control
First of all, it is not really in the WikiCulture to restrict access in a Wiki. But if you want to restrict access to your pages, you can try this out.
To make sure that only a set of authorized users can view/edit/rename your Twiki page(s), add the following text to the bottom of your page(s). (Each line starts with 3 spaces, an asterix and a space followed by the text)
Set ALLOWTOPICVIEW = < comma-delimited list of Users and Groups >
Set ALLOWTOPICCHANGE = < comma-delimited list of Users and Groups >
Set ALLOWTOPICRENAME = < comma-delimited list of Users and Groups >
Make sure to add your Twiki name to the list so that you will be able to access your pages!
By using HTML comments around the access control statements you can make it invisible in the normal viewing of pages.
For a detailed and complete explanation of how to use Twiki Access Control visit the TWikiAccessControl page.