On Thu, Nov 06, 2014 at 08:21:37AM +0000, Ray Bellis wrote: > hello, > > the domain trello.com<http://trello.com> could not be resolved ( "dig > trello.com<http://trello.com> A" fail ) > > It’s working for me, via a 1.4.16 installation. > > when I ask the authoritative nameservers directly I get answers with > decreasing TTL values. >
They are a webacceleration service and CDN. A webacceleration service is a sort of caching proxy for HTML-pages. Maybe their DNS-service is also a proxy and they want fast/predictable changes, so they take the original ttl from the real server and decrease it. > But that’s somewhat, umm, special… > > Curiously their servers (operated by incapsula.com<http://incapsula.com>) > also appear to strip the RD bit from replies, contrary to RFC 1035. > > kind regards, > > Ray > _______________________________________________ Unbound-users mailing list [email protected] http://unbound.nlnetlabs.nl/mailman/listinfo/unbound-users
