2ba7af7a34
Ianw noticed problems on fedora29 with unbound. That resulted in a bug filed upstream, https://www.nlnetlabs.nl/bugs-script/show_bug.cgi?id=4226. In this bug the helpful unbound maintainers point out that OpenDNS servers are having trouble with RRSIG records which leads to not validating dnssec which we require in our unbound config. Address this by switching to CloudFlare DNS which is suppsoed to be super localized (aka responsive), and not record queries against it. Also if we want to we can update our config to do dns over tls against these servers. Change-Id: I8137239c2f53381afd87d420a5fe44064c669f87