Apache Reference: mod_auth_anon, Anonymous_Authoritative

Anonymous_Authoritative

Fall Through to Other Authorization Methods
Syntax: Anonymous_Authoritative on|off
Example: Anonymous_Authoritative on
Since: Apache 1.2

When this directive is set to ``on'', no fall-through to other authorization methods occurs. If a user ID does not match any of the values specified in the Anonymous directive, access is denied.