Extension:RudeProxyBlock

Usage
To use the extension create a list of proxies at MediaWiki:Openproxylist on your wiki (One proxy per line, no extra text on those lines). Any IP listed there will not be allowed to edit or view pages and will be redirected to Special:RudeProxyBlock and will have a message displayed to them (When viewed from a normal IP the page is just a link back to the Main Page). You can customize the title using MediaWiki:Rudeproxyblock and the message using MediaWiki:Rudeproxyblockmsg.

Installation
Copy the code below into extensions/RudeProxyBlock.php and add the change to LocalSettings.php.