Thanks! Goodness, only raised more questions: 1. What is Umbrella? See http://info.opendns.com/rs/033-OMP-861/images/OpenDNS-Global-Network.pdf http://info.ope

Thanks! Goodness, only raised more questions: 1. What is Umbrella? See http://info.opendns.com/rs/033-OMP-861/images/OpenDNS-Global-Network.pdf http://info.opendns.com/rs/033-OMP-861/images/OpenDNS-Global... 2. What is Passive DNS? See https://docs.umbrella.com/investigate-ui/docs/passive-dns https://docs.umbrella.com/investigate-ui/docs/passive-dns