Application clustering in Linux Ubuntu

Dear,
Please help me to configure application clustering in linux ubuntu. Application is running apache server.

Please help

Jewel

---------- Post updated at 01:07 PM ---------- Previous update was at 12:48 PM ----------

linuxvirtualserver dot org

in this link i go there's three way to do this.

anybody can tell me please which is better and how to do it... i m beginner in linux. so dont know how to do ...

Do you read documentation from that site?
Do you have questions?

which option is easier and i can easily configure?

how to rebuild the kernel?