dns section of the
packetbeat.yml config file specifies configuration
options for the DNS protocol. The DNS protocol supports processing DNS messages
on TCP and UDP. Here is a sample configuration section for DNS:
packetbeat.protocols: - type: dns ports:  include_authorities: true include_additionals: true
Also see Common protocol options.
If this option is enabled, dns.authority fields (authority resource records) are added to DNS events. The default is false.