Published at LXer:
The Linux world abounds in monitoring apps of all kinds. We're going to look at my three favorite service monitors: Apachetop, Monit, and Supervisor. They're all small and fairly simple to use. apachetop is a simple real-time Apache monitor. Monit monitors and manages any service, and Supervisor is a nice tool for managing persistent scripts and commands without having to write init scripts for them.
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