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tailscale/net/dns/resolver
Andrea Gottardo a584d04f8a
dns: increase TimeToVisible before DNS unavailable warning (#13317)
Updates tailscale/tailscale#13314

Some users are reporting 'DNS unavailable' spurious (?) warnings, especially on Android:

https://old.reddit.com/r/Tailscale/comments/1f2ow3w/health_warning_dns_unavailable_on_tailscale/
https://old.reddit.com/r/Tailscale/comments/1f3l2il/health_warnings_dns_unavailable_what_does_it_mean/

I suspect this is caused by having a too low TimeToVisible setting on the Warnable, which triggers the unhealthy state during slow network transitions.

Signed-off-by: Andrea Gottardo <andrea@gottardo.me>
3 weeks ago
..
debug.go all: use Go 1.22 range-over-int 5 months ago
doh_test.go net/dns/resolver: remove maxDoHInFlight 2 years ago
forwarder.go dns: increase TimeToVisible before DNS unavailable warning (#13317) 3 weeks ago
forwarder_test.go net/dns/resolver: log forwarded query details when TS_DEBUG_DNS_FORWARD_SEND is enabled 1 month ago
macios_ext.go all: avoid repeated default interface lookups 1 year ago
tsdns.go net/dns, health: raise health warning for failing forwarded DNS queries (#12888) 2 months ago
tsdns_server_test.go all: update copyright and license headers 2 years ago
tsdns_test.go net/dns, health: raise health warning for failing forwarded DNS queries (#12888) 2 months ago