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Apache Module mod_authn_alias

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Description:	Provides the ability to create extended authentication providers based on actual providers
Status:	Extension
Module Identifier:	authn_alias_module
Source File:	mod_authn_alias.c
Compatibility:	Available in Apache 2.1 and later

Summary

This module allows extended authentication providers to be created within the configuration file and assigned an alias name. The alias providers can then be referenced through the directives AuthBasicProvider or AuthDigestProvider in the same way as a base authentication provider. Besides the ability to create and alias an extended provider, it also allows the same extended authentication provider to be reference by multiple locations.

Topics

Examples

Directives

<AuthnProviderAlias>

Comments

Examples

This example checks for passwords in two different text files.

Checking multiple text password files

# Check here first <AuthnProviderAlias file file1> AuthUserFile /www/conf/passwords1 </AuthnProviderAlias> # Then check here <AuthnProviderAlias file file2> AuthUserFile /www/conf/passwords2 </AuthnProviderAlias> <Directory /var/web/pages/secure> AuthBasicProvider file1 file2 AuthType Basic AuthName "Protected Area" Require valid-user </Directory>

The example below creates two different ldap authentication provider aliases based on the ldap provider. This allows a single authenticated location to be serviced by multiple ldap hosts:

Checking multiple LDAP servers

LoadModule authn_alias_module modules/mod_authn_alias.so <AuthnProviderAlias ldap ldap-alias1> AuthLDAPBindDN cn=youruser,o=ctx AuthLDAPBindPassword yourpassword AuthLDAPURL ldap://ldap.host/o=ctx </AuthnProviderAlias> <AuthnProviderAlias ldap ldap-other-alias> AuthLDAPBindDN cn=yourotheruser,o=dev AuthLDAPBindPassword yourotherpassword AuthLDAPURL ldap://other.ldap.host/o=dev?cn </AuthnProviderAlias> Alias /secure /webpages/secure <Directory /webpages/secure> Order deny,allow Allow from all AuthBasicProvider ldap-other-alias ldap-alias1 AuthType Basic AuthName LDAP_Protected_Place AuthzLDAPAuthoritative off Require valid-user </Directory>

<AuthnProviderAlias> Directive

Description:	Enclose a group of directives that represent an extension of a base authentication provider and referenced by the specified alias
Syntax:	`<AuthnProviderAlias baseProvider Alias> ... </AuthnProviderAlias>`
Context:	server config
Status:	Extension
Module:	mod_authn_alias

<AuthnProviderAlias> and </AuthnProviderAlias> are used to enclose a group of authentication directives that can be referenced by the alias name using one of the directives AuthBasicProvider or AuthDigestProvider.

This directive has no affect on authorization, even for modules that provide both authentication and authorization.