Wpoison - Prevent E-Mail Address Harvesting
 Wpoison
is a CGI which can be used
to help reduce the problem of bulk junk e-mail on the Internet. Wpoison
helps to combat the junk e-mail problem by thwarting the efforts of junk
e-mailers who regularly scan web pages, looking for target e-mail addresses
to harvest (which they subsequently bombard with junk e-mail).
Installation
Do the following, depending on your Virtual Server O/S.
- FreeBSD
& Solaris
Connect to your Virtual Server via Telnet
or SSH and issue this command:
% vinstall wpoison
Add the mod_rewite
Apache Module to your web
server by including the following line in your web server configuration file (~/www/conf/httpd.conf):
LoadModule rewrite_module modules/mod_rewrite.so
Implementation
In order to properly implement a site inoculation, you will want to use a combination of empty
<a href> tags on your home page and throughout your web site a la
<a href="/leeches/index.html"></a> as well as add the lines similar
to the following to your web server configuration file:
RewriteEngine On
RewriteCond %{HTTP_USER_AGENT} ^ExtractorPro.*
RewriteRule ^/.* /leeches/index.html [L]
RewriteCond %{HTTP_USER_AGENT} ^E-mailSiphon.*
RewriteRule ^/.* /leeches/index.html [L]
RewriteCond %{HTTP_USER_AGENT} ^eCatch.*
RewriteRule ^/.* /leeches/index.html [L]
To prevent legitimate Web
Robots from indexing the Wpoison generated pages, create an entry in your robots.txt
file (or create the file in your ~/www/htdocs/ directory if it does not already exist) to
"disallow" the /leeches/ directory, like this:
User-agent: *
Disallow: /leeches/
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