A common question I see being asked on various lists is “How do I block an IP address from accessing my site?”
This should *not* be treated as a robust security measure, there are many ways this could be bypassed. Use at your own risk.
Copy and paste the text below into a file and name it .htaccess. Then upload it to your web server.
deny from nnn.nnn.nnn.nnn
(replace nnn’s with the IP address you wish to deny)