Extension:AntiSpoof

The AntiSpoof extension is an extension for preventing confusable usernames from being created. It blocks the creation of accounts with mixed-script, confusing and similar usernames.

For example, if user John Doe is already registered, the extension will block attempts to register: etc.
 * John Dоe ("о" in Dоe is Cyrillic small letter O),
 * Јohn Doe ("Ј" in Јohn is Cyrillic capital letter Je),
 * John Đoe ("Đ" in Đoe is Latin capital letter D with stroke),
 * Jóhn Doe ("ó" in Jóhn is Latin small letter O with acute),
 * John &#8203;Doe (there is Zero-width space before Doe),
 * Jøhn Doe ("ø" in Jøhn is Scandinavian oe),

Installation

 * 1) Download the files from SVN or download a snapshot. Choose the version that matches your version of MediaWiki.
 * 2) Create a directory   in your   directory.
 * 3) Extract the files to this   directory.
 * 4) Add   to the bottom of LocalSettings.php.
 * 5) In case user accounts are stored in a shared database, add   just after that line.
 * 6) Add the required tables to the database; on the command line, enter:  (Note: Your designated database user needs to have CREATE rights on your MediaWiki database.)
 * 7) Run the batchAntiSpoof.php script; on the command line to pre-populate the spoof usernames. Enter:
 * 8) Installation can now be verified through Special:Version of your wiki.