Channel Modes

Channel settings

These are channel modes that configure channel settings.

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Channel mode	Module	Description	Restrictions
c	chanmodes/nocolor	No color allowed in the channel. Will block ANSI and mIRC color codes.	Requires +o or higher
C	chanmodes/noctcp	No CTCP's allowed in the channel.	Requires +o or higher
D	chanmodes/delayjoin	Delays someone's JOIN message until that person speaks. Chanops and higher, opers and ulines/services are exempt.	Requires +o or higher
d	chanmodes/delayjoin	When unsetting +D, Unreal needs to process all remaining delayed users (i.e. invisible in the channel to regular users) to make them JOIN. +d is an intermediate/temporary mode to facilitate this and will be unset once all users are properly "joined".	Set by server
f	chanmodes/floodprot	Flood protection. This is a highly advanced feature, see channel mode +f.	Requires +o or higher
G	chanmodes/censor	Filter out bad words configured in Badword block	Requires +o or higher
H	chanmodes/history	Turns on Channel History. requires UnrealIRCD 5.x, and modern IRC clients. For more information how to use this see Channel history	Requires +o or higher
i	built-in	Invite only. Requires people to be /INVITE'd to the channel or be on the +I (Invite Exceptions) list (for that latter, see the List modes section above)	Requires +o or higher
k	built-in	Require users to specify a channel key in order to join (/JOIN #chan key). Example: +k secret	Requires +h or higher
K	chanmodes/noknock	/KNOCK command is not allowed.	Requires +o or higher
L	built-in	Channel link. If the +l user limit (see below) is reached then users will automatically be redirected to this channel. Example: +L #something	Requires +o or higher
l	built-in	Limit the amount of users that may be in the channel. If the limit is reached then any new JOIN's are rejected (see also +L above).	Requires +o or higher
m	built-in	Moderated channel. Only people with +v or higher (+vhoaq) may speak.	Requires +h or higher
M	chanmodes/regonlyspeak	Must be authenticated to services or have +v or higher to speak.	Requires +o or higher
N	chanmodes/nonickchange	No nick-changes permitted. Normally not set, only during a a nick-flood flood attack.	Requires +o or higher
n	built-in	No external messages. If you don't set +n then users outside the channel may still send messages to it. Thus, almost everyone will set their channel +n.	Requires +h or higher
O	chanmodes/operonly	IRC Operator only channel	IRCOp-only
P	chanmodes/permanent	Permanent channel. After all users leave a channel it is normally destroyed. If you set +P then this won't happen and all settings are preserved. In addition to that, in UnrealIRCd 5 all channel settings (modes, bans, topic, etc.) are saved in a database and restored on startup via the channeldb module.	IRCOp-only
p	built-in	Private channel. Partially conceals the existence of the channel. Users cannot see this channel name unless they are a member of it. For example, if you /WHOIS a user who is on a +p channel, this channel is omitted from the response - unless you are on the same channel. IRC Operators will always see +p channels and its members.	Requires +o or higher
Q	chanmodes/nokick	No /KICK allowed. Can be used to force all chanops to use Services for kicking. Unusual, but possible.	Requires +o or higher
R	chanmodes/regonly	Only registered users may join the channel. Registered users are users authenticated to Services.	Requires +o or higher
r	built-in	Channel is registered at Services	Set by services
s	built-in	Secret channel. Extends the functionality of +p (above), but in addition to this, it will act as if the channel does not exist at all for queries like /TOPIC, /LIST and /NAMES. One exception to this is that it will always respond to the /MODE command. IRC Operators will always see +s channels and its members.	Requires +o or higher
S	chanmodes/stripcolor	Strip color codes. This removes any mIRC or ANSI color codes by converting it to regular text.	Requires +o or higher
T	chanmodes/nonotice	Channel notices are not permitted (/NOTICE #chan hi!). On many clients a beeping sound will happen on notices, hence why this mode is sometimes set.	Requires +o or higher
t	built-in	Restricts /TOPIC to +h or higher. Without +t anyone in the channel may set the topic. Most channels are +t.	Requires +h or higher
V	chanmodes/noinvite	/INVITE is not permitted.	Requires +o or higher
z	chanmodes/secureonly	Only clients which are connected through SSL/TLS may join the channel	Requires +o or higher
Z	chanmodes/issecure	Indicates that only people who are using SSL/TLS are on the channel. This channel mode is (only) set by the server when the channel is also +z and everyone on the channel is connected via SSL.	Set by server