I'm on a mission to block all of my bandwidth-hogging spambot visitors from Iran. 90% of them are coming from one wonderful link: http://38.102.41.116/~linkshek/3.0/3.00.htm

I want to block any and all visitors coming through that website to get to my website. I want to simply redirect them back to where they where. I believe this has something to do with the .htaccess file. Thanks for your help!

You can deny access based upon IP address or an IP block using htaccess file

ex:

order allow,deny
deny from 123.45.6.7
deny from 012.34.5.
allow from all

The above blocks access to the site from 123.45.6.7, and from any sub domain under the IP block 012.34.5. (012.34.5.1, 012.34.5.2, 012.34.5.3, etc.)