Apache Reference: mod_auth_anon

mod_auth_anon - User Authentication by Anonymous Name/E-Mail Address
Since Apache 1.1, src/modules/standard/mod_auth_anon.c
Rob McCool, Brian Behlendorf, Robert S. Thau, Dirk van Gulik (1996)

The functionality of mod_auth_anon resembles the behavior of an Ano==ny==mous-FTP server, in some way. That is, this module deals with the Basic Authentication facility like mod_auth.On the other hand, it does not serve any real access control purposes. Instead, it merely identifies the user. One can therefore give the REMOTE_USER variable a meaning in SSI/CGI scripts or log files (for noncritical distinguishing purposes) without requiring real user authentication.

Directives:

Anonymous	Anonymous_Authoritative
Anonymous_LogEmail	Anonymous_MustGiveEmail
Anonymous_NoUserId	Anonymous_VerifyEmail