Apache External Authentication Modules

The Apache HTTP Daemon can be configured to require users to supply logins and
passwords before accessing pages in some directories. Authentication is the
process of checking if the password given is correct for a user. Apache has
standard modules for authenticating out of several different kinds of
databases. These external authentication modules provide a flexible tool for
creating authentication systems based on other databases.

Authors:
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    Nathan Neulinger (nneul@umr.edu)
    Tyler Allison (allison@nas.nasa.gov)
    Jan Wolter