Apple Mac OS - Manual (Page 5)

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About This Guide
This guide provides instructions for setting up, configuring,
and administering iChat service on Mac OS X Server.
Instant messaging involves live interactions between computer users exchanging text,
pictures, audio, and video. Instant messaging is also known as
chatting, because of its
spontaneous, conversation-like qualities. iChat is the Apple instant messaging service
that promotes real-time communication and information-sharing between diverse user
groups.
Mac OS X Server version 10.5 includes iChat service administration in its suite of
services. iChat service administration is preinstalled on Apple servers.
iChat Service Administration provides information about:
 “Setting up iChat", on page 19
 “Managing iChat", on page 22
 “Setting Access Control for iChat", on page 22
 “Linking Multiple Chat Servers (S2S)", on page 27
 “Securing S2S Connections", on page 28
 “Setting Up iChat on Virtually Hosted Domains", on page 31
What’s New in Version 10.5
Mac OS X Server v10.5 offers the following major enhancements to iChat service:
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Server-to-server iChat service
 Server Admin interface upgrades
 Jabber2 process support
 Kerberos support
 Auto-buddy support
 Chat service monitoring and diagnostics support
 Chat server backup and restore
 Client chat transcript archiving