CHAPTER 6Network MonitoringKnowing When It Goes WrongWithout Watching It

As an administrator, it is your responsibility to know when things are about to go wrong. You can, of course, go sit by your server all day and figure out if everything is going all right, but you probably have better things to do. Nagios offers services to monitor the network for you. In this chapter you'll learn how to install and use Nagios.

Starting with Nagios

Nagios is a network-wide monitoring tool. In this chapter you'll learn how to set it up on your servers. Once it is set up, you can watch the status of servers in your network via a web browser. Don't want to watch a web browser all time? That's fine, because you can configure Nagios to send relevant security ...

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