ejabberd

Free and Open Source distributed fault-tolerant XMPP server

ejabberd is a high performance Free and Open Source distributed fault-tolerant instant messaging Jabber server. Key features include: - A web administration console and command line administration tools that ensure easy set up - Support for encrypted connections to ensure secure communications - Many built-in services, including Jabber User Directory and Multi-User Chat - Standard Jabber transport compliance to enable communication with other instant messaging networks - Automatic collection of statistics for reporting and system analysis - Virtual hosting, enabling ejabberd to run several virtual domains from a single ejabberd instance - Shared rosters, so that users can have predefined entries in their contacts lists - External storage support - Large numbers of supported protocols (see the supported protocols list for details) - Multi-lingual web administration interface - Full IPv6 support