MODE *|<channel> [+|-]b [[! [@ ]]] MODE <nick> [+|-]
Mode command is quite complicated and it allows channel operators to change channel mode, or any user to change their personal mode. For a channel mode, <modechars> is one of the following:
i - channel is invite only. k <key> - Adds join keyto the channel. Keys can added or removed (MODE <channel> -k ), but not changed. l <number> - channel is limited, where is the maximum number of users allowed. m - channel is moderated (only channel operators talk). n - No MSGs to the channel are allowed from someone outside the channel. o <nick> - Makes a channel operator. p - channel is private. s - channel is secret. Note: On 2.8 servers you cannot set both +p and +s modes t - Topic limits, only the channel operators may change it. v <nick> - Gives someone a voice to talk on a moderated channel. b user!nick@host - Adds ban. e user!nick@host - Adds ban exception. I user!nick@host - Adds need-invite exception (notice uppercase I).
A + or - sign determines whether the specified mode should be added or deleted. If you supply * as channel name, modes will apply to your current channel.
The form which takes user!nick@host is special in that it needs specifying a sting of the form nick!user@host. Banning examples:
mode #MyChannel +b *!*@gus.*bans everybody from the channel who is on IRC from any machine whose name is gus.
mode #MyChannel +b netw1zbans anybody using the nickname netw1z.
mode #MyChannel +b *!merklin@*bans anybody whose user name is merklin.
mode #MyChannel +b [email protected]bans the user [email protected] from the channel whenever he is using the nickname "jerk".
You can list the bans in effect on a channel:
mode #MyChannel bWith the same way, you can list invite-exceptions on a channel:
mode #MyChannel IAnd ban exceptions:
mode #MyChannel eThe third form of the MODE command allows you to modify your personal parameters. You can precede any combination of the following with + or - (+to switch that mode on, - to switch it off).
o - IRC operator status. You may not turn this on with mode. To assert operator status, you must use oper w - Receive wallops (messages directed at all operators. see wallops. s - Receive server notices. This includes kill notices and notices about what is happening with links to the local server. i - Render yourself invisible. This prevents you from being seen in who and whois information, unless somebody specifies your exact nickname with whois. This is quite useful, because it often let's you "idle in peace" without getting harmed by mass advertisers etc.
Note: Attempting to avoid a ban placed on you may result in forcible removal from IRC or being banned from your server.