Jabber - eJabberd

Disable use of jabber services in CommuniGate: open CGP admin interface, go to Settings / Real-Time / XMPP / Receiving / Listener and change ports to 15222, 15223, 15269.

See eJabberd installation guide for details.

Install erlang and ejabberd

yum install erlang ejabberd

Create security certificate for jabber

mkdir /etc/pki/ca/jabber
cd /etc/pki/ca/jabber
/etc/pki/ca/auto-sign /etc/pki/jabber ejabberd
Organizational Unit: Jabber Services
Common Name: ourdom.com
cat ejabberd.key ejabberd.crt > ejabberd.pem
chown ejabberd:root ejabberd.*
chmod 600 ejabberd.key ejabberd.pem

Edit a few parameters in /etc/ejabberd/ejabberd.cfg

Restart jabber daemon

Create eJabberd administrator

ejabberdctl register root vitki.net secret_pass

Create Apache redirector in /etc/httpd/vhosts/jabber.conf

<VirtualHost *:443>
ServerName jabber.ourdom.com:443
DocumentRoot /var/www/dummy
Include vhosts/ssl.inc
ProxyRequests Off
SSLProxyEngine On
ProxyPass        / http://localhost:5280/   keepalive=On
ProxyPassReverse / http://localhost:5280/
</VirtualHost> 

Use administration interface https://jabber.ourdom.com/admin (login with full name as root@ourdom.com) to administer installation and https://jabber.ourdom.com/admin/server/ourdom.com to administer jabber users on your host.