Published at LXer:

Computer monitoring software enables systems and applications of all kinds to be watched autonomously, so that the state of a system is continuously known. If the hardware, software, or the operating system is not functioning properly, the system administrator needs to be alerted at the earliest opportunity to ensure fast problem resolution. Using monitoring software, technical staff can often take remedial action at the first sign of a problem, before business processes, end-users, or customers are even aware that there is an issue.

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