secret.example.com hmac-sha256 sw0nMPCswVbes1tmQTm1pcMmpNRK+oGMYN+qKNR/BwQ=
1.2.3.4
dead:beef::1
5353 secret.example.com
1.2.3.4
1.2.3.5 secret.example.com
1.2.3.5