On Sat, Nov 10, 2018 at 05:08:29PM -0500, Viktor Dukhovni wrote: > For the IPv4 address, for a total of 60 queries sent, only 5 answers > came back. Four of the five responses were delayed by more than a > full second. digging around, I see curious behavior. dig -4 +tcp @ns0.amsl.com consistently reports query time of upwards of 2s from a host in hetzner.de and upwards of 3s from hotel in Bangkok. dig -4 @ns0.amsl.com (udp) reports query time of ~165ms from a host in hetzner.de and ~230ms from hotel in Bangkok. The response size for this query was 285 bytes. The TCP lookups take much longer (note that this is the dig query time output and IIRC does not include the handshake and @NS lookup times). Mukund
