Heartbeat check (eg Nagios / Icinga)
Admin tools ::: tool_heartbeat
Maintained by Catalyst IT, Brendan Heywood, Daniel Thee Roperto
A load balancer heartbeat / health checker url, and also a configurable nagios compliant cron health checker. This should work out of the box with most load balancers, eg Amazon ELB, F5, HA proxy etc as most of these simply check the http status for 200 or non-200 response codes.