2. Instant Messaging
• “Instant Messaging(IM) is a form of
communication over the Internet that offers
quick transmission of text-based messages from
sender to receiver.
• “In push mode between two or more people
using personal computers basically offers real-
time written language-based online chat.
3. Instant Messaging
• “The user’s text is conveyed over a network, such as
the Internet. It may address point-to-point
communications as well as multicast communications
from one sender to many receivers.
• “More advanced instant messaging allows enhanced
modes of communication, such as live voice or video
calling, video chat and inclusion of hyperlinks to
media.” – Definition from Wikipedia
4. About Ejabberd
• “ejabberd is a Jabber/XMPP instant messaging
server, licensed under GPLv2(Free and Open
Source), written in Erlang/OTP. Among other
features, ejabberd is cross-platform, fault-
tolerant, clusterable and modular.” – Definition
from Ejabberd Community
Site(http://www.ejabberd.im)
26. Connect to an External Database
• Ejabberd has its default database, located at:
• /opt/ejabberd-2.1.10/database/ejabberd@localhost
• How to connect to an external database?
39. Introduction
• Normally, if we use the default
configuration, when we login to our
accounts, there’s no encryption actived.
• But in case of safety, we usually need to
change settings to use TLS connection
method.
40. Modify ejabberd.cfg File
• Add “starttls_required,” into the “5222”
listening ports section. Then restart service.