Chapter 10. Monitoring Your Network
In this chapter, we will cover:
- Installing Nagios
- Adding Nagios users
- Adding Nagios hosts
- Monitoring services
- Defining commands
- Monitoring via NRPE
- Monitoring via SNMP
Introduction
While a bit less common for home networks, monitoring is one of the key responsibilities of a systems administrator in the business world. A good sysadmin should be aware of failures in the systems that they're responsible for before the end user notices the problems. In fact, they are often aware of issues before they occur, due to monitoring resources to detect bottlenecks before they trigger any service degradation.
Monitoring can fall into a number of categories, including graphing, alerting, and in some cases, automated fixes.
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