Editing IRCd (section)

=== Jupe ===
'''Juping''' a server, a channel, or a nickname refers to the practice of blocking said channel or nickname on the [[server (computing)|server]] or [[computer network|network]] or said server on the network. One possible explanation of how this term came about is that it is named after the [[IRC operator|oper]] named Jupiter, who gained control of the nickname [[NickServ]] on [[EFnet]].<ref>{{cite web|url=http://forum.efnet.org/viewtopic.php?p=736&sid=93438e76e1948098a2575a7474b56cbd#p736|access-date=2013-03-13|title=Reply to thread "K-lined for {{sic|nolink=y|attemting}} to join juped channel ?" on EFnet forums}}</ref>{{Citation needed|date=September 2009}} EFnet does not offer services such as NickServ; Jupiter gained control of the nickname as he (among other operators) did not believe nicknames should be owned. Today, EFnet opers jupe nicknames that are used as services on other networks.

A nickname or server jupe takes advantage of the fact that certain identifiers are unique; by using an identifier, one acquires an exclusive lock that prevents other users from making use of it.

Officially sanctioned jupes may also utilize services or server configuration options to enforce the jupe, such as when a compromised server is juped to prevent it from harming the network.

In practice IRC operators now use jupe configurations to administratively make channel or nicknames unavailable.<ref>{{cite web|url=http://freenode.net/using_the_network.shtml|access-date=2007-02-25|title=Freenode, Using the network|url-status=dead|archive-url=https://web.archive.org/web/20070226012149/http://freenode.net/using_the_network.shtml|archive-date=2007-02-26}}</ref> A channel jupe refers to a server specific ban of a channel, which means that a specific channel cannot be joined when connected to a certain server, but other servers may allow a user to join the channel. This is a way of banning access to problematic channels.