Auth MemCookie" are an Apache v2 authentification and authorization modules are
based on "cookie" authentification mechanism.
The module does not do authentification by it self, but verify if
authentification "the cookie" are valid for each url protected by the module.
The module validate also if the "authentificated user" have authorisation to
acces an url.
Authentification are made externaly by an authentification form page and all
authentification information nessary to the module a stored in memcached
indentified by the cookie value "authentification session id" by this login