ZNC is an

IRC IRC (Internet Relay Chat) is a text-based chat system for instant messaging. IRC is designed for group communication in discussion forums, called '' channels'', but also allows one-on-one communication via private messages as well as chat ...

network bouncer or BNC. 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 Transport Layer Security (TLS) is a cryptographic protocol designed to provide communications security over a computer network, such as the Internet. The protocol is widely used in applications such as email, instant messaging, and voice over ...

connections and

IPv6 Internet Protocol version 6 (IPv6) is the most recent version of the Internet Protocol (IP), the communication protocol, communications protocol that provides an identification and location system for computers on networks and routes traffic ...

. ZNC is written in C++ and licensed under the Apache-2.0 license. The main program, which already features multiple users, per channel playback buffers and transparent

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bouncing, can be extended using modules. Modules can be written in Python,

Perl Perl is a high-level, general-purpose, interpreted, dynamic programming language. Though Perl is not officially an acronym, there are various backronyms in use, including "Practical Extraction and Reporting Language". Perl was developed ...

, Tcl, or C++. Available modules comprise logging functionality, Blowfish encryption, user and channel management, away functionality, a partyline and more. A very popular module is ''webadmin'': it provides a way to manage users and channels conveniently using only a web browser. ZNC also supports ident spoofing via oidentd. ZNC has been in development since July 2004 as an alternative to psyBNC and new releases are made regularly. It has received favorable reviews, especially in comparison to psyBNC, and has an active community on IRC. In mid-2009, ZNC's popularity among

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users increased after notification modules for Colloquy and

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were published. Since 2012, IRC clients started to integrate with ZNC: while sending channel buffers to the client, ZNC uses a timestamp indicating when each message was received, and the client shows this instead of the time when the client received the buffer. This functionality is implemented as a protocol extension.

References

External links

* * * on Libera.chat * rc://irc.efnet.org/znc #ZNCon EFnet {{IRC bouncers IRC Internet privacy software Free software programmed in C++ 2004 software