We do not offer support for .htaccess modifications. The following examples will work
on our systems and we offer them as a courtesy to our customers. Complete documentation on
mod_rewrite at http://www.apache.org/docs/mod/mod_rewrite.html
and http://www.ch.engelschall.com/pw/apache/rewriteguide/
 

The .htaccess file is an ASCII text document that can be placed in any directory on
your site. It can be used to control access to files and directories, and customize some
server operation in your site. A .htaccess file can be created in any word processor but
must be saved as text only. You must use FTP software in ASCII mode to upload or edit your
.htaccess file. For the examples provided here, place the .htaccess file in your root
directory.

Custom Error Messages

Add the following to the .htaccess file::

ErrorDocument 404 /notfound.html

After "ErrorDocument" specify the error code, followed by a space, and then
the path and filename of the .html file you would like to be displayed when the specified
error is generated.

Denying User Access

Add the following to the .htaccess file:

<Limit GET>

order allow,deny

deny from 128.23.45.

deny from 207.158.255.213

allow from all

</Limit>

This is an example of a .htaccess file that will block access to your site to anyone
who is coming from any IP address beginning with 128.23.45 and from the specific IP
address 207.158.255.213 . By specifying only part of an IP address, and ending the partial
IP address with a period, all sub-addresses coming from the specified IP address block
will be blocked. You must use the IP addresses to block access, use of domain names is not
supported.

Redirect a Machine Name

Add the following to the .htaccess file:

RewriteEngine On

Options +FollowSymlinks

RewriteBase /

# Rewrite Rule for machine.domain-name.net

RewriteCond %{HTTP_HOST} machine.domain-name.net $

RewriteCond %{REQUEST_URI} !machine/

RewriteRule ^(.*)$ machine/$1

This will redirect requests for the machine name machine.domain-name.net to the
directory machine on the site domain-name.net .

Different Default Home Page

Add the following to the .htaccess file:

DirectoryIndex filename.html

Then a request for http://domain-name.net/ would return
http://domain-name.net/filename.html if it exists, or would list the directory if it did
not exist.

To automatically run a cgi script, add the following to the .htaccess file:

DirectoryIndex /cgi-local/index.pl

This would cause the CGI script /cgi-bin/index.pl to be executed.

If you place your .htaccess file containing the DirectoryIndex specification in the
root directory of your site, it will apply for all sub-directories at your site.

Preventing People from Linking to Your Images

Add the following to the .htaccess file:

# Rewrite Rule for images

RewriteCond %{HTTP_REFERER} <URL of page accessing your domain>

RewriteRule ^(.*)$ http://<same as above URL>

You would replace the <URL of page accessing your domain> above with the domain
name and path of the page that is referring to your domain. For example:
www.their-isp.net/users/mypage/

The RewriteCond directive states that if the {HTTP_REFERER} matches the URL that
follows, then use the RewriteRule directive. The RewriteRule directive will redirect any
reference back to the referring web page.

Updated: 10/03/98