Today, I setup the MediaWiki wiki system for HomeNet. Just follow the directions on their website. Also try this page if you want to integrate the FCKEditor WYSIWYG editor when editign wikis (alternative to learning the difficult wiki markup).

Notes (after installation):

For wiki restrictions, in LocalSettings.php file, optionally add:

# Prevent new user registrations except by sysops
$wgGroupPermissions['*']['createaccount'] = false;
# Disable reading by anonymous users
$wgGroupPermissions['*']['read'] = false;
# Disable editing by anonymous users
$wgGroupPermissions['*']['edit'] = false;

That’s it!