Apache Reference: http_core, AuthName
Specify User Authentication Realm
Syntax: AuthName A
Example: AuthName "Private Database"
Since: Apache 1.0
This directive specifies the name of the authorization realm for a
directory. This realm is given to the client so that the user
knows which user name and password to send during HTTP Basic
Authentication. The argument realm is single argument; that is, if the
realm name contains spaces, it must be enclosed in quotation marks.
The directive must be accompanied by AuthType and Require
directives, plus directives such as AuthUserFile and
AuthGroupFile, to actually have any effects.