From: Erik Abele Apache HTTP Server Version 2.0 Note: If you want to call your What you can put in these files is determined by the What you can put in these files is determined by the For example, if you look at the documentation for the For example, if you look at the documentation for the Example: If you are unsure whether a particular directive is permitted in a
In general, you should never use However, in general, use of There are two main reasons to avoid the use of
The first of these is performance. When The first of these is performance. When And so, for each file access out of that directory, there are 4
additional file-system accesses, even if none of those files are
@@ -138,17 +137,17 @@ changes on a per-directory basis. Contents of .htaccess file in
- ![[APACHE DOCUMENTATION]](../images/sub.gif)
Apache HTTP Server Version 2.0
Apache Tutorial: .htaccess files
+ -->
Apache Tutorial: .htaccess files
.htaccess files provide a way to make configuration
changes on a per-directory basis..htaccess files
-
-Related Modules coremod_authmod_cgimod_includemod_mimeRelated Directives AccessFileNameAllowOverrideOptionsAddHandlerSetHandlerAuthTypeAuthNameAuthUserFileAuthGroupFileRequireWhat they are/How to use them
+.htaccess files
+
+Related Modules Related Directives What they are/How to use them
.htaccess files (or "distributed configuration files")
@@ -16,36 +18,34 @@ changes on a per-directory basis.
+
+ .htaccess file something
else, you can change the name of the file using the AccessFileName
directive. For example, if you would rather call the file
.config then you can put the following in your server
configuration file:
-
+
AccessFileName .config
- AllowOverride
+ AllowOverride
directive. This directive specifies, in categories, what directives
will be honored if they are found in a .htaccess file. If
a directive is permitted in a .htaccess file, the
documentation for that directive will contain an Override section,
- specifying what value must be in AllowOverride in order
+ specifying what value must be in AllowOverride in order
for that directive to be permitted.AddDefaultCharset
+ AddDefaultCharset
directive, you will find that it is permitted in .htaccess
files. (See the Context line in the directive summary.) The Override line reads
"FileInfo". Thus, you must have at least
"AllowOverride FileInfo" in order for this directive to be
honored in .htaccess files.
-
-
+
+ Example:
-
- Context:
@@ -57,14 +57,13 @@ changes on a per-directory basis.
FileInfo
.htaccess file, look at the documentation for that
directive, and check the Context line for ".htaccess."When (not) to use .htaccess files
+ When (not) to use .htaccess files
.htaccess files unless
@@ -88,13 +87,13 @@ changes on a per-directory basis..htaccess files should be
avoided when possible. Any configuration that you would consider
putting in a .htaccess file, can just as effectively be
- made in a <Directory> section in your main server
+ made in a <Directory> section in your main server
configuration file..htaccess files.AllowOverride
+ AllowOverride
is set to allow the use of .htaccess files, Apache will
look in every directory for .htaccess files. Thus,
permitting .htaccess files causes a performance hit,
@@ -109,12 +108,12 @@ changes on a per-directory basis./www/htdocs/example, Apache must look for the
following files:
-
+
- /.htaccess
- /www/.htaccess
- /www/htdocs/.htaccess
+
+ /.htaccess
+ /www/.htaccess
+ /www/htdocs/.htaccess
/www/htdocs/example/.htaccess
- .htaccess file in /www/htdocs/example:
+ /www/htdocs/example
+ Contents of .htaccess file in
+
/www/htdocs/example
AddType text/example .exm
-
+
Section from your
httpd.conf- file- <Directory /www/htdocs/example>
- AddType text/example .exm
+Section from your
httpd.conf+ file
+ <Directory /www/htdocs/example>
+ AddType text/example .exm
</Directory> -
However, putting this configuration in your server configuration file will result in less of a performance hit, as the configuration is @@ -158,10 +157,10 @@ changes on a per-directory basis.
The use of .htaccess files can be disabled completely
by setting the AllowOverride directive to "none"
-
+
AllowOverride None -
The configuration directives found in a .htaccess file
are applied to the directory in which the .htaccess file
@@ -179,27 +178,27 @@ changes on a per-directory basis.
In the directory /www/htdocs/example1 we have a
.htaccess file containing the following:
+
+
Options +ExecCGI -
(Note: you must have "AllowOverride Options" in effect
- to permit the use of the "Options" directive in
+ to permit the use of the "Options" directive in
.htaccess files.)
In the directory /www/htdocs/example1/example2 we have
a .htaccess file containing:
+
+
Options Includes -
Because of this second .htaccess file, in the directory
/www/htdocs/example1/example2, CGI execution is not
permitted, as only Options Includes is in effect, which
completely overrides any earlier setting that may have been in
place.
If you jumped directly to this part of the document to find out how to do authentication, it is important to note one thing. There is a @@ -221,31 +220,31 @@ changes on a per-directory basis.
.htaccess file contents:
+
- AuthType Basic
- AuthName "Password Required"
- AuthUserFile /www/passwords/password.file
- AuthGroupFile /www/passwords/group.file
+
+ AuthType Basic
+ AuthName "Password Required"
+ AuthUserFile /www/passwords/password.file
+ AuthGroupFile /www/passwords/group.file
Require Group admins -
Note that AllowOverride AuthConfig must be in effect
for these directives to have any effect.
Please see the authentication tutorial for a more complete discussion of authentication and authorization.
-Another common use of .htaccess files is to enable
Server Side Includes for a particular directory. This may be done with
the following configuration directives, placed in a
.htaccess file in the desired directory:
+
- Options +Includes
- AddType text/html shtml
+
+ Options +Includes
+ AddType text/html shtml
AddHandler server-parsed shtml -
Note that AllowOverride Options and AllowOverride
FileInfo must both be in effect for these directives to have any
@@ -253,25 +252,25 @@ changes on a per-directory basis.
Please see the SSI tutorial for a more complete discussion of server-side includes.
-Finally, you may wish to use a .htaccess file to permit
the execution of CGI programs in a particular directory. This may be
implemented with the following configuration:
+
- Options +ExecCGI
+
+ Options +ExecCGI
AddHandler cgi-script cgi pl -
Alternately, if you wish to have all files in the given directory be considered to be CGI programs, this may be done with the following configuration:
-+
- Options +ExecCGI
+
+ Options +ExecCGI
SetHandler cgi-script -
Note that AllowOverride Options must be in effect for
these directives to have any effect.
Please see the CGI tutorial for a more complete discussion of CGI programming and configuration.
-When you put configuration directives in a .htaccess
file, and you don't get the desired effect, there are a number of
things that may be going wrong.
Most commonly, the problem is that AllowOverride is not
+
Most commonly, the problem is that AllowOverride is not
set such that your configuration directives are being honored. Make
sure that you don't have a AllowOverride None in effect
for the file scope in question. A good test for this is to put garbage
@@ -299,4 +298,4 @@ changes on a per-directory basis.

\ No newline at end of file
+