Channel modes

The following channel modes are available in ircd-yeti:

Modes that control who may join

Mode	Name	Description
b	Ban	Prevents a user from joining the channel based on a nick!ident@host or extended ban match.
e	Ban exception	Allows a user to join a channel even if they're banned based on a nick!ident@host or extended ban match.
i	Invite only	Users must be /INVITE'd or match an entry on the +I list to join the channel.
I	Invite exception	Allows a user to join a channel that is invite-only (+i) based on a nick!ident@host or extended ban match.
k	Key	Requies users to provide the channek key to join the channel, using /JOIN #channel key.
l	Limit	Sets the user limit for the cannel. Once reached, no additional users may join the channel.
r	Registered only	Only users who have authenticated with services may join the channel.
Z	TLS only	Only users who have connected via TLS may join the channel.

Modes that affect messages

Mode	Name	Description
C	No CTCPs	Blocks CTCP messages addressed to the channel. ACTION CTCPs (i.e., /me) are still permitted.
c	No control codes	Blocks channel messages containing control codes/colors.
M	Moderated Reg	Prevents anyone who hasn't authenticated with services from talking in the channel.
m	Moderated	Prevents anyone who isn't opped, half-opped, or voiced from talking in the channel.
N	No notices	Blocks channel notices.
n	No external	Prevents anyone who is not in the channel from sending messages to the channel.
q	Quiet	Prevents a user from talking on the channel based on a nick!ident@host or extended ban match.
Q	Quit squelch	Prevents PART and QUIT reasons from being shown.
T	No multi-target	Attempts to block messages targeting multiple channels, such as those sent by /ame and /amsg.
u	Unfiltered	Receive messages that are filtered server-side due to content (i.e. spam).
x	Reduce moderation	Messages that would normally be blocked by +m/+b/+q are instead sent to chanops.

Modes that grant extra abilities

Mode	Name	Description
h	Half operator	Grants a user half operator status on the channel, allowing them to set most modes, whilst stopping hem from doing harm to the channel. They cannot kick opped users, or set modes +h/-h/+o/-o. Nicklist prefix: %
o	Channel operator	Grants a user channel operator status on the channel, giving them full control over the channel. An opped user may op other users, set any mode, and remove ops from whoever they want. Nicklist prefix: @
v	Voice	Grants a user voice status on the channel, allowing them to talk in a moderated channel. Nicklist prefix: +

Modes that restrict channel visibility

Mode	Name	Description
p	Private	Marks a channel as private, hiding it from the channel listing.
s	Secret	Marks a channel as secret, hiding it from the channel listing and WHOIS replies.

Miscellaneous modes

Mode	Name	Description
D	Delayed joins	Enables delayed joins on the channel.
H	Hidden lists	Hides b/e/q/I list entries and associated mode channels from everyone but chanops and halfops.
t	Op topic	Only chanops and halfops may change the channel topic using the TOPIC command.

Services/server-only modes

The following channel modes may only be set via services or a server.

Mode	Name	Description
d	Hidden users	Indicates there are still (delayed joined) hidden users present in the channel.
z	Persistent	Prevents the channel from being destroyed when the last user leaves.