Editing IRCd (section)

=== Q-line ===
{{Redirect|Q-line|the New York City subway service|Q (New York City Subway service)|the Detroit streetcar service|QLine}}
On some IRCds, such as UnrealIRCd, a '''Q-line''' forbids a nickname, or any nickname matching a given pattern. This is most often used to forbid use of services nicknames (such as "X", or [[NickServ]]) or forbid use of [[IRC operator]] nicknames by non-operators. Some IRC daemons may disconnect users when initially applying the Q-line, whilst others will force a nickname change, or do nothing until the user covered by the Q-line reconnects. Other IRCds, like ircd-hybrid, use the "RESV" ("reserve") command instead, with the stats letter remaining as Q. The "RESV" command can also forbid a channel from being used.