28.3. Monitor Types

The System and Server Status allows you to monitor many different kinds of servers and daemons, using different monitor types. All types perform some kind of check, and either succeed or fail depending on whether the check passes or not. In some cases, a monitor can return a third result indicating that the server being checked is not installed or that the check that it is trying to perform is impossible.

The available types, their purposes, and additional parameters are listed in Table 28.1:

Table 28.1. Monitor Types and Their Options
MonitorDescriptionParameters
Apache Web serverDetermines if Apache is running by looking at its PID file, using the configuration set in the Apache Webserver module.None
BIND 4 DNS ServerChecks ...

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