IRC

thumb|upright|The first IRC server, tolsun.oulu.fi, a Sun-3 server on display near the [[University of Oulu computer centre]]

denial-of-service attack on Internet chat

Finnish computer scientist

In computer networking, specifically Internet Relay Chat (IRC), netsplit is a disconnection between two servers. A split between any two servers splits the entire network into two pieces.

set of scripts or an independent program that connects to Internet Relay Chat as a client

Eggdrop is a popular IRC bot and the oldest that is still being maintained.

thumb|A list of packs available from an XDCC bot

Before the popularization of the Internet in the 1990s, Internet slang defined a luser (sometimes expanded to local user; also luzer or luzzer) as a painfully annoying, stupid, or irritating computer user. The word is a blend of "loser" and "user". Among hackers, the word luser takes on a broad meaning, referring to any normal user (in other words, not a "guru"), with the implication the person is also a loser. The term is partially interchangeable with the hacker term lamer.

An IRCd, short for Internet Relay Chat daemon, is server software that implements the IRC protocol, enabling people to talk to each other via the Internet (exchanging textual messages in real time). It is distinct from an IRC bot that connects outbound to an IRC channel.

protocol for file transfer and direct chat on Internet Relay Chat

type of communication between Internet Relay Chat (IRC) clients

software

BitlBee is a cross-platform IRC instant messaging gateway, licensed under the terms of the GNU General Public License.

REDIRECT IRC services#ChanServ

ZNC is an IRC bouncer. It can detach the client from the actual IRC server, and also from selected channels. Multiple clients from different locations can connect to a single ZNC account simultaneously and therefore appear under the same nickname on IRC. It supports Transport Layer Security connections and IPv6.

Wikimedia list article

type of service

IRC user with privileged access

UnrealIRCd is an open-source IRC daemon, originally based on DreamForge, and is available for Unix-like operating systems and Windows. Since the beginning of development on UnrealIRCd c. May 1999, many new features have been added and modified, including advanced security features and bug fixes, and it has become a popular server. The latest stable version is 6.2.1, released in 2025, with ongoing development in the 6.2.x series.