val nameserver = \host -> dns (dnsNS host);
val dnsIP = \from -> \to -> dns (dnsA from to);
+val dnsIPv6 = \from -> \to -> dns (dnsAAAA from to);
val dnsMail = \num -> \host -> dns (dnsMX num host);
val dnsAlias = \from -> \to -> dns (dnsCNAME from to);
val dnsDefault = \to -> dns (dnsDefaultA to);
+val dnsDefaultv6 = \to -> dns (dnsDefaultAAAA to);