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This section includes the following topics:

About dnstap Implementation

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If you choose to enable the dnstap log format, you will not be able to capture queries and responses using the Data connector for all DNS Queries/Responses to a Domainfields. And if you use the Data connector for all DNS Queries/Responses to a Domainfields for query capture, the DNSTAP settings for DNS Queries/Responses fields will be are disabled.

Note
titleNote

For Advanced DNS Protection software with acceleration, you must download the latest ruleset before enabling dnstap.

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Ensure that you understand the following limitations before you use dnstap to log queries and responses:

  • dnstap supports UDP, TCP, and EDNS protocols that require additional processing thus leading to a decrease in performance.
  • NIOS does not support BIND9 dnstap.
  • If the remote logging server is not accessible, then the logs are dropped and not buffered.
  • The dnstap server cannot truncate EDNSO queries.
  • If you run a query that contains +edns=1, a dnstap server that uses the Golang DNS library to process the captured data displays it as a bad signature (TSIG signature failure).
  • Capturing the queries and responses also depends on other factors such as the size of the flavor deployed and features enabled over it.
  • dnstap does not support query and response logging on the MGMT interface.
  • For long-running queries, using dnstap may cause some response packets to be dropped.

Configuring dnstap to Log DNS Queries and Response Captures

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