The Domain Name Server (DNS) monitor is a simple service monitor that checks for the DNS on port 53. If a DNS service does not respond on this port, the service is considered down.

Credentials are not required for the DNS Monitor.

Configure the following:

  • Name. Enter a unique name for the active monitor. This name displays in the Monitor Library.
  • Description. Enter additional information about the monitor. This description displays next to the monitor name in the Monitor Library.
  • Timeout. Enter the length of time attempts to connect to the selected device. When the time you enter is exceeded without connecting, a timeout occurs and stops trying to connect to the DNS server. This is considered a failed connection.
  • Use in Rescan. Select this option to have the monitor appear in the Active Monitor list on the Device Properties page. adds the monitor type to the device during a rescan, which is started using the Rescan button on the Device Properties dialog, if the protocol or service is active on the device.