mod_auth_basic - Apache HTTP Server

Apache HTTP Server Version 2.2

Apache > HTTP Server > Documentation > Version 2.2 > Modules

# Apache Module mod_auth_basic

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Description: | Basic authentication
Status: | Base
Module Identifier: | auth_basic_module
Source File: | mod_auth_basic.c
Compatibility: | Available in Apache 2.1 and later

### Summary

This module allows the use of HTTP Basic Authentication to restrict access by looking up users in the given providers. HTTP Digest Authentication is provided by `mod_auth_digest`. This module should usually be combined with at least one authentication module such as `mod_authn_file` and one authorization module such as `mod_authz_user`.

### Directives

### See also

- `AuthName`
- `AuthType`
- `Require`
- `Satisfy`
- Authentication howto

## AuthBasicAuthoritative Directive

Description: | Sets whether authorization and authentication are passed to lower level modules
Syntax: | `AuthBasicAuthoritative On|Off`
Default: | `AuthBasicAuthoritative On`
Context: | directory, .htaccess
Override: | AuthConfig
Status: | Base
Module: | mod_auth_basic

Normally, each authorization module listed in `AuthBasicProvider` will attempt to verify the user, and if the user is not found in any provider, access will be denied. Setting the `AuthBasicAuthoritative` directive explicitly to `Off` allows for both authentication and authorization to be passed on to other non-provider-based modules if there is no userID or rule matching the supplied userID. This should only be necessary when combining `mod_auth_basic` with third-party modules that are not configured with the `AuthBasicProvider` directive. When using such modules, the order of processing is determined in the modules' source code and is not configurable.

## AuthBasicProvider Directive

Description: | Sets the authentication provider(s) for this location
Syntax: | `AuthBasicProvider provider-name [provider-name] ...`
Default: | `AuthBasicProvider file`
Context: | directory, .htaccess
Override: | AuthConfig
Status: | Base
Module: | mod_auth_basic

The `AuthBasicProvider` directive sets which provider is used to authenticate the users for this location. The default `file` provider is implemented by the `mod_authn_file` module. Make sure that the chosen provider module is present in the server.

### Example

`<Location /secure>
AuthType basic
AuthName "private area"
AuthBasicProvider dbm
AuthDBMType SDBM
AuthDBMUserFile /www/etc/dbmpasswd
Require valid-user
</Location>`

Providers are implemented by `mod_authn_dbm`, `mod_authn_file`, `mod_authn_dbd`, and `mod_authnz_ldap`.

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