There a few approaches to take when monitoring DNS with Uptime Infrastructure Monitor:
- monitoring the process count
- connecting to the port to ensure availability
- log monitoring to track any errors.
Process count
The UIM monitoring station includes a Process Count Check monitor which, given a process name and threshold value, will collect the number of occurrences of the specified process. This service monitor requires that UIM Agent be installed on the target server. For more information, see Process Count Check.
Port availability
The DNS service monitor issues a request similar to nslookup against the specified server and thresholds can be configured based on the response from the server. For more information, see Network Service Monitors.
Log monitoring
Log monitoring is accomplished with a Plugin service monitor. Plugin service monitors are available on the UIM Grid website and extend the out of the box functionality of UIM. Either the Enhanced Log File Monitor or UNIX Log Scanner plugin monitors would achieve this.