Linux ejabberd
From John Freier
ejabberd is an open source platform built on Jabber/XMPP.
XMPP (Extensible Messaging and Presence Protocol)
https://github.com/processone/ejabberd
Config
Host - Updated the host to include my domain.
{hosts, ["localhost", "johnfreier.com"]}.
Turned off the web admin interface
%%web_admin
Turned off user registration. Switch 'allow' to 'deny'. You will need to register users before turning this off.
{access, register, [{deny, all}]}.