Extension:RegexBlock

RegexBlock is an extension that adds special page with the interface for blocking, viewing and unblocking user names and IP addresses using regular expressions. It was originally written by Bartek Łapiński for Wikia.

Use

 * 1) Go to
 * 2) Enter the IP address or the username to be blocked to the "IP address or username" field
 * 3) Enter an optional reason. If no reason is provided by the blocker, a generic reason will be shown to the blocked user.
 * 4) Select expiry time
 * 5) Select if you want to block the creation of new accounts and if the match needs to be exact or regex one
 * 6) Press "Block this user"

Examples
To block all users except local ones (192.168.xx.xx):