May

8

Quick .htaccess File Reference List

May 8, 2007 |

Here’s a quick reference list to configure the .htaccess file.

Turn off magic_quotes_gpc

# Only if you use PHP
<ifmodule mod_php4.c>
php_flag magic_quotes_gpc off
</ifmodule>

Save Bandwidth

# Only if you use PHP
<ifmodule mod_php4.c>
php_value zlib.output_compression 16386
</ifmodule>

The ContentDigest Directive
As the Apache core features documentation says: “This directive enables the generation of Content-MD5 headers as defined in RFC1864 respectively RFC2068. The Content-MD5 header provides an end-to-end message integrity check (MIC) of the entity-body. A proxy or client may check this header for detecting accidental modification of the entity-body in transit.

Note that this can cause performance problems on your server since the message digest is computed on every request (the values are not cached). Content-MD5 is only sent for documents served by the core, and not by any module. For example, SSI documents, output from CGI scripts, and byte range responses do not have this header.�

To turn this on, just add ContentDigest On.

The CheckSpelling Directive
From Jens Meiert: CheckSpelling corrects simple spelling errors (for example, if someone forgets a letter or if any character is just wrong). Just add CheckSpelling On to your htaccess file.

Use MD5 Digests
Performance may take a hit but if thats not a problem, this is a nice option to turn on.

ContentDigest On

Change Script Extensions

AddType application/x-httpd-php .gne

gne will now be treated as PHP files! Similarly, x-httpd-cgi for CGI files, etc.

Password Protecting Directories
Use the .htaccess Password Generator and follow the brief instructions!

Grant CGI Access in a directory

Options +ExecCGI
AddHandler cgi-script cgi pl
# To enable all scripts in a directory use the following
# SetHandler cgi-script

Avoid the 500 Error

# Avoid 500 error by passing charset
AddDefaultCharset utf-8

Stop .htaccess (or any other file) from being viewed

<files file-name>
order allow,deny
deny from all
</files>

Want to show a “Stealing is Bad� message too?
Add this below the Hot Link Blocking code:

RewriteRule .(gif|jpg)$ http://www.mydomain.com/dontsteal.gif [R,L]

Block Hot Linking/Bandwidth hogging

RewriteEngine on
RewriteCond %{HTTP_REFERER} !^$
RewriteCond %{HTTP_REFERER} !^http://(www.)?mydomain.com/.*$ [NC]
RewriteRule .(gif|jpg)$ - [F]

Block site from specific referrers

RewriteEngine on
RewriteCond %{HTTP_REFERER} site-to-block.com [NC]
RewriteCond %{HTTP_REFERER} site-to-block-2.com [NC]
RewriteRule .* - [F]

Redirect Visitors to New Page/Directory

Redirect oldpage.html http://www.domainname.com/newpage.html
Redirect /olddir http://www.domainname.com/newdir/

Allow only LAN users

order deny,allow
deny from all
allow from 192.168.0.0/24

Block Users from accessing the site

<limit GET POST PUT>
order deny,allow
deny from 202.54.122.33
deny from 8.70.44.53
deny from .spammers.com
allow from all
</limit>

Change Default Page (order is followed!)

DirectoryIndex myhome.htm index.htm index.php

Get SSI working with HTML/SHTML

AddType text/html .html
AddType text/html .shtml
AddHandler server-parsed .html
AddHandler server-parsed .shtml
# AddHandler server-parsed .htm

Customize Error Messages

ErrorDocument 403 /forbidden.html
ErrorDocument 404 /notfound.html
ErrorDocument 500 /servererror.html

Disable Directory Browsing

Options All -Indexes

Enable Directory Browsing

Options +Indexes
## block a few types of files from showing
IndexIgnore *.wmv *.mp4 *.avi


Comments

1 Comment so far

  1. kaushik on December 27, 2007 1:36 am

    does not work in our local wamp server.
    AddType application/x-httpd-php .gne

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