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.
This artcle explains the steps to install and configure openfire in a linux server.
Step1: Configure Java by follwing the instructions in the below url
Step2: Download the latest version of openfire package
Step3: Install the downloaded package
rpm -ivh openfire-4.0.2-1.i386.rpm
Step4: Start openfire service
Step5: Take the url http://ipaddress:9090 in browser and follow the instructions in it