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<title>mod_authn_core - Apache HTTP Server Version 2.4</title>
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<body>
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Modules | Directives | FAQ | Glossary | Sitemap
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Apache HTTP Server Version 2.4
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Apache > HTTP Server > Documentation > Version 2.4 > Modules
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Apache Module mod_authn_core
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Available Languages: en |
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fr
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Status:Base
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Module Identifier:authn_core_module
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Source File:mod_authn_core.c
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Compatibility:Available in Apache 2.3 and later
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Summary
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This module provides core authentication capabilities to
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allow or deny access to portions of the web site.
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mod_authn_core provides directives that are
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common to all authentication providers.
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![Support Apache!]() Topics
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 Creating Authentication Provider Aliases
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Directives
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AuthName
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<AuthnProviderAlias>
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AuthType
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Bugfix checklistSee also
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Comments
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Extended authentication providers can be created
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within the configuration file and assigned an alias name. The alias
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providers can then be referenced through the directives
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AuthBasicProvider or
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AuthDigestProvider in
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the same way as a base authentication provider. Besides the ability
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to create and alias an extended provider, it also allows the same
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extended authentication provider to be reference by multiple
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locations.
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This example checks for passwords in two different text
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files.
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Checking multiple text password files# Check here first
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<AuthnProviderAlias file file1>
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AuthUserFile "/www/conf/passwords1"
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</AuthnProviderAlias>
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# Then check here
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<AuthnProviderAlias file file2>
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AuthUserFile "/www/conf/passwords2"
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</AuthnProviderAlias>
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<Directory "/var/web/pages/secure">
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AuthBasicProvider file1 file2
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AuthType Basic
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AuthName "Protected Area"
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Require valid-user
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</Directory>
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The example below creates two different ldap authentication
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provider aliases based on the ldap provider. This allows
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a single authenticated location to be serviced by multiple ldap
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hosts:
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Checking multiple LDAP servers<AuthnProviderAlias ldap ldap-alias1>
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AuthLDAPBindDN cn=youruser,o=ctx
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AuthLDAPBindPassword yourpassword
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AuthLDAPURL ldap://ldap.host/o=ctx
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</AuthnProviderAlias>
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<AuthnProviderAlias ldap ldap-other-alias>
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AuthLDAPBindDN cn=yourotheruser,o=dev
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AuthLDAPBindPassword yourotherpassword
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AuthLDAPURL ldap://other.ldap.host/o=dev?cn
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</AuthnProviderAlias>
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Alias "/secure" "/webpages/secure"
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<Directory "/webpages/secure">
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AuthBasicProvider ldap-other-alias ldap-alias1
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AuthType Basic
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AuthName "LDAP Protected Place"
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Require valid-user
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# Note that Require ldap-* would not work here, since the
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# AuthnProviderAlias does not provide the config to authorization providers
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# that are implemented in the same module as the authentication provider.
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</Directory>
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Description:Authorization realm for use in HTTP
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authentication
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Syntax:AuthName auth-domain
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Context:directory, .htaccess
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Override:AuthConfig
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Status:Base
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Module:mod_authn_core
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This directive sets the name of the authorization realm for a
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directory. This realm is given to the client so that the user
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knows which username and password to send.
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AuthName takes a single argument; if the
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realm name contains spaces, it must be enclosed in quotation
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marks. It must be accompanied by AuthType and Require directives, and directives such
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as AuthUserFile and
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AuthGroupFile to
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work.
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For example:
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AuthName "Top Secret"
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The string provided for the AuthName is what will
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appear in the password dialog provided by most browsers.
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See also
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Authentication, Authorization, and
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Access Control
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mod_authz_core
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Description:Enclose a group of directives that represent an
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extension of a base authentication provider and referenced by
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the specified alias
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Syntax:<AuthnProviderAlias baseProvider Alias>
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... </AuthnProviderAlias>
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Context:server config
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Status:Base
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Module:mod_authn_core
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<AuthnProviderAlias> and
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</AuthnProviderAlias> are used to enclose a group of
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authentication directives that can be referenced by the alias name
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using one of the directives
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AuthBasicProvider or
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AuthDigestProvider.
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This directive has no affect on authorization, even for modules that
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provide both authentication and authorization.
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Description:Type of user authentication
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Syntax:AuthType None|Basic|Digest|Form
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Context:directory, .htaccess
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Override:AuthConfig
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Status:Base
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Module:mod_authn_core
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This directive selects the type of user authentication for a
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directory. The authentication types available are None,
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Basic (implemented by
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mod_auth_basic), Digest
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(implemented by mod_auth_digest), and
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Form (implemented by mod_auth_form).
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To implement authentication, you must also use the AuthName and Require directives. In addition, the
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server must have an authentication-provider module such as
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mod_authn_file and an authorization module such
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as mod_authz_user.
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The authentication type None disables authentication.
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When authentication is enabled, it is normally inherited by each
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subsequent configuration section,
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unless a different authentication type is specified. If no
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authentication is desired for a subsection of an authenticated
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section, the authentication type None may be used;
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in the following example, clients may access the
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/www/docs/public directory without authenticating:
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<Directory "/www/docs">
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AuthType Basic
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AuthName Documents
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AuthBasicProvider file
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AuthUserFile "/usr/local/apache/passwd/passwords"
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Require valid-user
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</Directory>
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<Directory "/www/docs/public">
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AuthType None
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Require all granted
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</Directory>
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When disabling authentication, note that clients which have
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already authenticated against another portion of the server's document
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tree will typically continue to send authentication HTTP headers
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or cookies with each request, regardless of whether the server
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actually requires authentication for every resource.
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See also
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Authentication, Authorization,
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and Access Control
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Available Languages: en |
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fr
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Notice:This is not a Q&A section. Comments placed here should be pointed towards suggestions on improving the documentation or server, and may be removed again by our moderators if they are either implemented or considered invalid/off-topic. Questions on how to manage the Apache HTTP Server should be directed at either our IRC channel, #httpd, on Freenode, or sent to our mailing lists.
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//--></script>
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Copyright 2018 The Apache Software Foundation.
Licensed under the Apache License, Version 2.0.
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