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Module mod_alias
This module is contained in the mod_alias.c file, and
is compiled in by default. It provides for mapping different parts of the
host filesystem in the the document tree, and for URL redirection.
Alias
Syntax: Alias url-path directory-filename
Context: server config, virtual host
Status: Base
Module: mod_alias
The Alias directive allows documents to be stored in the local filesystem
other than under the DocumentRoot.
URLs with a (%-decoded) path beginning with url-path will be
mapped to local files beginning with directory-filename.
Example:
Alias /image /ftp/pub/image
A request for http://myserver/image/foo.gif would cause the server to
return the file /ftp/pub/image/foo.gif.
See also ScriptAlias.
Redirect
Syntax: Redirect [ status ] url-path url
Context: server config, virtual host, directory, .htaccess
Status: Base
Module: mod_alias
Compatibility: The directory and .htaccess context's
are only available in versions 1.1 and later. The status argument is only available in Apache 1.2 or later.
The Redirect directive maps an old URL into a new one. The new URL is returned
to the client which attempts to fetch it again with the new address.
Url-path a (%-decoded) path; any requests for documents beginning with
this path will be returned a redirect error to a new (%-encoded) url
beginning with url. Example:
Redirect /service
http://foo2.bar.com/service
If the client requests http://myserver/service/foo.txt, it will be told to
access http://foo2.bar.com/service/foo.txt instead.
Note: Redirect directives take precedence over Alias and ScriptAlias
directives, irrespective of their ordering in the configuration file. Also,
Url-path must be an absolute path, not a relative path, even when used with
.htaccess files or inside of <Directory> sections.
If no status argument is given, the redirect will be
"temporary" (HTTP status 302). This indicates to the client that the
resources is has moved temporarily. The status
argument can be used to return other HTTP status codes:
- permanent
- Returns a permanent redirect status (301) indicating that
the resource has moved permanently.
- temp
- Returns a temporary redirect status (302). This is the
default.
- seeother
- Returns a "See Other" status (303) indicating that
the resource has been replaced.
- gone
- Returns a "Gone" status (410) indicating that the resource
has been permanently removed. When this status is used the url
argument should be omitted.
Other status codes can be returned by giving the numeric status code
as the value of status. If the status is between 300 and 399,
the url argument must be present, otherwise it must be
omitted. Note that the status must be known to the Apache code (see
the function send_error_response in http_protocol.c).
RedirectTemp
Syntax: RedirectTemp url-path url
Context: server config, virtual host, directory, .htaccess
Status: Base
Module: mod_alias
Compatibility: This directive is only available in 1.2
This directive makes the client know that the Redirect is only
temporary. (Status 302). Exactly equivalent to Redirect temporary
RedirectPermanent
Syntax: RedirectPermanent url-path url
Context: server config, virtual host, directory, .htaccess
Status: Base
Module: mod_alias
Compatibility: This directive is only available in 1.2
This directive makes the client know that the Redirect is permanent.
(Status 301). Exactly equivalent to Redirect permanent
ScriptAlias
Syntax: ScriptAlias url-path directory-filename
Context: server config, virtual host
Status: Base
Module: mod_alias
The ScriptAlias directive has the same behavior as the
Alias directive, except that in addition it
marks the target directory as containing CGI scripts.
URLs with a (%-decoded) path beginning with url-path will be
mapped to scripts beginning with directory-filename.
Example:
ScriptAlias /cgi-bin/ /web/cgi-bin/
A request for http://myserver/cgi-bin/foo would cause the server to
run the script /web/cgi-bin/foo.
