I see there are a number of HA solutions outlined in the HowTo Guides for Lenny, using various combinations of HAProxy, Perlbal, Pound, Heartbeat and Keepalive. I wondered whether Falko and others who have installed and tested various combinations could make some recommendations regarding any particular solution. I assume they all work in principle, but might have different restrictions, community support, and advantages one should be aware of when making a choice. My server are Ubuntu latest LTR, running mainly a PHP website, Radius Server, MYSQL server and utility apps. Obviously I need session awareness and MYSQL clustering in the background to support such a setup. @ All Please let me know views and share your experience. Given the many options I am sure others might be interested in your advice as well.