An IRCd, meaning Internet Relay Chat server program, is a program, server software that uses the IRC protocol. This allows people to talk to each other on the Internet. They exchange textual messages in real time.
The server accepts connections from IRC clients on a group of TCP ports. When the server is part of an IRC network, it also keeps one or more connections with other servers/daemons.
The word ircd once referred to only one piece of software.
1. Other websites
- EFnet FAQ Archived 2008-08-27 at the Wayback Machine with several -line terms explained
- Undernet K-Line and G-Line FAQ Archived 2008-04-01 at the Wayback Machine with reasons for them, amongst other things
- IRCd network provider Archived 2016-03-04 at the Wayback Machine
- Technical comparison of TS and nickname delay mechanisms
- irc.org - IRC resources
- Quakenet General FAQ G/K-Line
- DarkFire IRC Manual network specific Archived 2008-04-04 at the Wayback Machine
- GLine, KLine, QLine and ELine syntax Archived 2008-03-23 at the Wayback Machine