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Jonathan Nobels 02e3c046aa net/dns: re-query system resolvers on no-upstream resolver failure on apple platforms (#12398) ... Fixes tailscale/corp#20677 On macOS sleep/wake, we're encountering a condition where reconfigure the network a little bit too quickly - before apple has set the nameservers for our interface. This results in a persistent condition where we have no upstream resolver and fail all forwarded DNS queries. No upstream nameservers is a legitimate configuration, and we have no (good) way of determining when Apple is ready - but if we need to forward a query, and we have no nameservers, then something has gone badly wrong and the network is very broken. A simple fix here is to simply inject a netMon event, which will go through the configuration dance again when we hit the SERVFAIL condition. Tested by artificially/randomly returning [] for the list of nameservers in the bespoke ipn-bridge code responsible for getting the nameservers. Signed-off-by: Jonathan Nobels <jonathan@tailscale.com>		2 years ago
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publicdns	Net/DNS/Publicdns: update the IPv6 range that we use to recreate route endpoint for control D	2 years ago
recursive	all: use Go 1.22 range-over-int	2 years ago
resolvconffile	clientupdate, net/dns: fix some "tailsacle" typos	2 years ago
resolver	net/dns: re-query system resolvers on no-upstream resolver failure on apple platforms (#12398)	2 years ago
config.go	all: update copyright and license headers	3 years ago
debian_resolvconf.go	all: update copyright and license headers	3 years ago
direct.go	health, all: remove health.Global, finish plumbing health.Tracker	2 years ago
direct_linux.go	health, all: remove health.Global, finish plumbing health.Tracker	2 years ago
direct_notlinux.go	all: update copyright and license headers	3 years ago
direct_test.go	clientupdate, net/dns: fix some "tailsacle" typos	2 years ago
flush_default.go	all: update copyright and license headers	3 years ago
flush_windows.go	cmd/tailscaled, net/dns, wgengine/router: start Windows child processes with DETACHED_PROCESS when I/O is being piped	2 years ago
ini.go	all: update copyright and license headers	3 years ago
ini_test.go	all: update copyright and license headers	3 years ago
manager.go	net/dns: fix crash in tests	2 years ago
manager_darwin.go	health, all: remove health.Global, finish plumbing health.Tracker	2 years ago
manager_default.go	health, all: remove health.Global, finish plumbing health.Tracker	2 years ago
manager_freebsd.go	health, all: remove health.Global, finish plumbing health.Tracker	2 years ago
manager_linux.go	health, all: remove health.Global, finish plumbing health.Tracker	2 years ago
manager_linux_test.go	health, all: remove health.Global, finish plumbing health.Tracker	2 years ago
manager_openbsd.go	health, all: remove health.Global, finish plumbing health.Tracker	2 years ago
manager_tcp_test.go	net/dns: don't set MatchDomains on Apple platforms when no upstream nameservers available (#12334)	2 years ago
manager_test.go	net/dns: fix crash in tests	2 years ago
manager_windows.go	cmd/tailscaled, net/dns, wgengine/router: start Windows child processes with DETACHED_PROCESS when I/O is being piped	2 years ago
manager_windows_test.go	health, all: remove health.Global, finish plumbing health.Tracker	2 years ago
nm.go	all: cleanup unused code, part 2 (#10670)	2 years ago
noop.go	all: update copyright and license headers	3 years ago
nrpt_windows.go	net/dns: unconditionally write NRPT rules to local settings	2 years ago
openresolv.go	net/dns: log more info when openresolv commands fail	2 years ago
osconfig.go	net/dns: fix typo in OSConfig logging (#12330)	2 years ago
osconfig_test.go	all: update copyright and license headers	3 years ago
resolvconf-workaround.sh	all: update copyright and license headers	3 years ago
resolvconf.go	net/dns: properly detect newer debian resolvconf	3 years ago
resolvconfpath_default.go	net/dns: overwrite /tmp/resolv.conf on gokrazy	3 years ago
resolvconfpath_gokrazy.go	net/dns: overwrite /tmp/resolv.conf on gokrazy	3 years ago
resolvd.go	all: update copyright and license headers	3 years ago
resolved.go	health, all: remove health.Global, finish plumbing health.Tracker	2 years ago
utf.go	all: update copyright and license headers	3 years ago
utf_test.go	all: update copyright and license headers	3 years ago
wsl_windows.go	cmd/tailscaled, net/dns, wgengine/router: start Windows child processes with DETACHED_PROCESS when I/O is being piped	2 years ago