Hi all, I have 2 servers online and wish them to communicate and exchange information with each other at times. I have been developing a web application which is extremely CPU-intensive, and since I don't want to overload the main server which deals with the apache/php/mysql stuff, I got a separate server (a phenom) to deal with it. I prefer the communication to be secure, low latency, scalable and two-way ie. either server can initiate communication with the other. As the number of users increase, I will need to add more quad-core servers. What would be the easiest/quickest-to-implement way to do this? Is there a daemon I could use to do this, or would I need to develop my own? Since I have only ever had a single server, I have never had to do this before, so wouldn't have a clue as to where to start. (I Googled "server communication" but got a pile of semi-useless links) TIA