DNS

Description

DNS is a network administration test that allows an agent to verify whether a specific DNS server can translate a Fully Qualified Domain Name (FQDN) into an IP address. The DNS test also reports the query time, expressed in milliseconds, it takes the server to respond to the agent's request.
 
DNS tests can be configured on the Target Setup form.
 
You can also run an ad-hoc DNS test with Ad-Hoc Testing.
 
 
Procedure
 
Input the following information:
  1. Destination (required for version 0.11.1 or and earlier, determined via Resource in version 0.11.2): The Fully Qualified Domain Name of the target to be tested.
  2. DNS Server (optional): The DNS server to be queried for the lookup. If no DNS server is specified, the agent will use its configured DNS server by default. You can review what DNS server a specific agent was configured with by accessing its IP settings (see the Agent IP settings page).
  3. Interval (required): The number of seconds between two consecutive DNS queries. By default the interval is set to 10 seconds.
  4. Count (required): This number tells the agent how many DNS requests it should run before exiting. The default value is 0.
    1. Leave it to 0 if it's a permanent/ongoing test.
    2. Specify the number of packets to send before exiting.
  5. Timeout per datapoint (required): The number of seconds that the agent will wait for a response by the DNS server before declaring that datapoint failed. The default value is 5 seconds.
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