Deprecated: Use of MediaWiki\Skin\Skin::appendSpecialPagesLinkIfAbsent was deprecated in MediaWiki 1.44. [Called from MediaWiki\Skin\Skin::buildSidebar in /var/www/html/includes/skins/Skin.php at line 1639] in /var/www/html/includes/debug/MWDebug.php on line 386
Blocking is used to prevent vandalism and other forms of disruption (read more). You can block IP address ranges using the CIDR syntax. The largest allowed range is /$1 for IPv4 and /$2 for IPv6.