Configure open fire chat server on Linux.

Open-fire is a powerful instant messaging (IM) and chat server that Implements the XMPP protocols.

Server Installation:

1) Download and make a fresh installed Linux/CentOS latest version for 32/64 bits.

2) Download and install Jre-6u33-linux-i586.bin (jdk is not need just jre):

Get it here (or download from Internet)
http://www.oracle.com/technetork/java/javase/downloads/index.html
download jre-6u33-linux-i586.bin or Download tar.gz file.
Then configure.

chmod +x jre-6u33-linux-i586.bin Or
jre-6u33-linux-i586.bin Extract tar file
mv jre1.6.0_33/opt

3) #mysql - u root -p;
     #mysql>CREATE DATABASE openfire;
     #mysql>quite;

4) Download and Install openfire - openfire_3_7_1 tar.gz
    #tar xvfz openfire_3_7_1 tar.gz
    #mv openfire /opt

    # cd /opt/openfire/bin

Uncomment and modify the following line at the beginning of "/opt/openfire/bin/openfire" script to override "JAVA_HOME":

INSTALL4J_JAVA_HOME_OVERRIDE=/opt/jre1.6.0_33

Note: This is not need if "echo $JAVA_HOME" point to a valid ORACLE java 1.5 (or later) or OPENJDK installation path.
Openfire does not works with "gcj" which can be installed on Ubuntu, check installed version executing "java-version".

Then just Start it!

./openfire start

5) Next, edit the configuration file /etc/openfire/openfire.xml, and add your linux server's public IP address in the <interface> section, and removing the "<!-->" comment markers that surround this section.

Edit in /etc/openfire/openfire.xml file

<interface>192.168.21.8</interface>

Now restart the Openfire with the following command:

/etc/init.d/openfire restart

Now access to openfire server - http://192.168.21.8:9090

For any query please feel free to contact me by this mail ID - sashwatkatore@gmail.com