unrealircd_mods/man/autojoin_byport.md

autojoin_byport

Similar to set::auto-join, this forces users to join one/multiple channels on connect, based on the p0rt they're using.

Config block:
autojoin_byport {
6667 "#plain";
6697 "#ssl,#ssl2";
};

Should be pretty clear how that works. ;] Currently it doesn't check for duplicates or max channels, so bnice. It does check for valid channel names/lengths and port ranges. =]