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Domain resolution

On this page
  1. Settings
  2. When is it healthy?
  3. Good to know

The Domain resolution sensor resolves a domain name through DNS and checks that it resolves. Use it to be warned when a DNS zone breaks, a record is deleted or a domain lapses.

In the wizard: Domain name.

Settings#

Setting Description
Host The domain name to resolve, for example www.corvane.example.
Timeout Time allowed for the resolution, in milliseconds.

When is it healthy?#

When the name resolves to at least one address within the timeout. The sensor does not compare the result to an expected address.

Good to know#

The resolution is made by the agent that runs the sensor: the public agent uses public DNS, while a private agent uses its network's resolvers — useful to check internal names such as db01.corp.local.