Apache HTTP Server Version 2.2

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| Description: | User Authorization | 
|---|---|
| Status: | Base | 
| Module Identifier: | authz_user_module | 
| Source File: | mod_authz_user.c | 
| Compatibility: | Available in Apache 2.1 and later | 
This module provides authorization capabilities so that
    authenticated users can be allowed or denied access to portions
    of the web site. mod_authz_user grants
    access if the authenticated user is listed in a Require user
    directive. Alternatively Require valid-user can be used to
    grant access to all successfully authenticated users.
| Description: | Sets whether authorization will be passed on to lower level modules | 
|---|---|
| Syntax: | AuthzUserAuthoritative On|Off | 
| Default: | AuthzUserAuthoritative On | 
| Context: | directory, .htaccess | 
| Override: | AuthConfig | 
| Status: | Base | 
| Module: | mod_authz_user | 
Setting the AuthzUserAuthoritative
    directive explicitly to Off allows for
    user authorization to be passed on to lower level modules (as defined
    in the modules.c files) if there is no
    user matching the supplied userID.
By default, control is not passed on and an unknown user
    will result in an Authentication Required reply. Not
    setting it to Off thus keeps the system secure and forces
    an NCSA compliant behaviour.