Open Fire+Spark : Open source IM

Several days ago I tried to develop Instant Massager (IM) server. After search in Google I found OpenFire . This application is very nice. Below is the steps how to install Openfire on Centos 4.3 :

I. Setup CENTOS 4.3 :
1. Install Centos , choose server installation.
2. Do not choose the GUI application.
3. Select all Server components.
4. Disable SELinux option.

II.Setup Openfire
1. Download openfire 3.5.0 from here .
2. Install the .rpm file :
# rpm -ivh openfire-3.5.0-1.i386.rpm
3. Configure the Openfire:
- Open your favorite web browser and pointing to http://server_ip_address:9090
- It will show openfire "Administration Console"
- Follow the guidance step-by-step to completed your installation
4. Create some users

III.Setup Openfire client:
1. I choose Spark as an Openfire client. You can download spark from here (windows version).
2. Setup Spark until finish.
3. Viola ! now you have an IM Server. Good luck.