Files
tailscale/net/dns
Brendan Creane d2af6a4d39 net/dns/publicdns: don't upgrade Control D port-53-only addresses to DoH (#20463)
DoHEndpointFromIP mapped the entire 2606:1a40::/48 range to a
dns.controld.com/<id> DoH URL, but the ID-encoded addresses in that range
are legacy plaintext-DNS endpoints that refuse :443. They now fall through
as ordinary port-53 resolvers; the free anycast freedns.controld.com/pN
addresses still upgrade via exact match.

Fixes #20433

Signed-off-by: Brendan Creane <bcreane@gmail.com>
2026-07-17 15:33:17 -07:00
..
2026-07-10 17:39:16 -07:00