The video below will walk through the process of setting up and installing Prosody, a lightweight Lua-based instant messaging server application. We’ll be using Ubuntu 12.04 for our server, though Prosody is a cross-platform application and will run on Windows, OS X, and a number of different Linuxes. Strap in, grab your server, and let’s roll!
via How to set up your own private instant messaging server | Ars Technica.
Jitsi is an audio/video Internet phone and instant messenger written in Java. It supports some of the most popular instant messaging and telephony protocols such as SIP, Jabber/XMPP (and hence Facebook and Google Talk), AIM, ICQ, MSN, Yahoo! Messenger.
via About | Jitsi.
Jitsi (previously SIP Communicator) is an audio/video and chat communicator that supports protocols such as SIP, XMPP/Jabber, AIM/ICQ, Windows Live, Yahoo! and many other useful features.
After reading several reviews, I chose ejabberd. Ejabberd can be downloaded from the previous link, but it also has the advantage of being located in the Ubuntu repositories. I created a Ubuntu Server and loaded ejabberd using “sudo apt-get install ejabberd”. Couldn’t be easier! And using a virtual machine to build the server means I can install it at customer locations without building a new server every single time, it will just need to be reconfigured once it is spun up.
via Building an XMPP Server – Part 1 | Jameson Networks Blog.
Ejabberd is also part of the fedora repositories but not part of the CentOS repos.
Openfire is a real time collaboration (RTC) server licensed under the Open Source Apache License. It uses the only widely adopted open protocol for instant messaging, XMPP (also called Jabber). Openfire is incredibly easy to setup and administer, but offers rock-solid security and performance.
Citadel is easy, versatile, and powerful, thanks to its exclusive “rooms” based architecture. No other platform seamlessly combines so many different features using this familiar and consistent metaphor.
Documentation – Apache Vysper.
Apache Vysper aims to be a full blown XMPP (=eXtensible Messaging and Presence Protocol) server.
The core of XMPP is defined in the standards RFC3920 and RFC3921.XMPP is more commonly known as ‘Jabber’.
XMPP is the Extensible Messaging and Presence Protocol, a set of open technologies for instant messaging, presence, multi-party chat, voice and video calls, collaboration, lightweight middleware, content syndication, and generalized routing of XML data.
XMPP was originally developed in the Jabber open-source community to provide an open, secure, spam-free, decentralized alternative to the closed instant messaging services at that time. XMPP offers several key advantages over such services:
via XMPP Technologies Overview – The XMPP Standards Foundation.