The administrator has an extensive set of tools to block people from the forum. The tools include an IP filter to block access to FUDforum from any IP address or IP address mask.

The e-mail filter blocks all users who's e-mail address matches the mask specified by the administrator. The e-mail filter also prevents new registrations using an e-mail that matches the specified mask.

The Login filter, blocks all users who's login matches the mask specified by the administrator. The login filter also prevents people from registering with a login that matches the specified mask.