Hi, On Wed, Jul 15, 2026 at 12:16:14PM +0100, Joe wrote: > ;; UDP setup with 2001:500:a8::e#53(2001:500:a8::e) for > 100.75.195.82.in-addr.arpa. failed: network unreachable.
[…] > Maybe a clue: my ISP doesn't yet do IPv6, though I can't see why that > should affect a DNS enquiry for an IPv4 address. You definitely have a problem with IPv6 in that your DNS resolver machine is trying to communicate with IPv6 addresses while not being able to. This indicates that the machine thinks it has a global scope IPv6 address, but it has no IPv6 route. It thinks it SHOULD be able to use IPv6 but it will always fail. You should either fix IPv6 or else remove the IPv6 address - IPv6 will always be tried first so it's making everything slower for you. I don't think it is the root of your problem though. I still think there is some misconfiguration of your bind9 server, as this thing is resolvable by everyone else. Thanks, Andy -- https://bitfolk.com/ -- No-nonsense VPS hosting
