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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>		5 months ago
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art	all: use Go 1.22 range-over-int	7 months ago
connstats	all: use Go 1.22 range-over-int	7 months ago
dns	net/dns: re-query system resolvers on no-upstream resolver failure on apple platforms (#12398)	5 months ago
dnscache	net/dnscache: use parent context to perform lookup	5 months ago
dnsfallback	tsd, ipnlocal, etc: add tsd.System.HealthTracker, start some plumbing	7 months ago
flowtrack	…
ktimeout	net/ktimeout: add a package to set TCP user timeout	9 months ago
memnet	…
netaddr	…
netcheck	net/netcheck: fix probeProto.String result for IPv6 probes	5 months ago
neterror	…
netkernelconf	ipn/{ipnlocal,localapi},net/netkernelconf,client/tailscale,cmd/containerboot: optionally enable UDP GRO forwarding for containers (#12410)	5 months ago
netknob	…
netmon	net/netmon: remove spammy log statements (#11953)	7 months ago
netns	net/{interfaces,netmon}, all: merge net/interfaces package into net/netmon	7 months ago
netstat	…
netutil	net/netmon, add: add netmon.State type alias of interfaces.State	7 months ago
packet	all: use Go 1.22 range-over-int	7 months ago
ping	…
portmapper	all: use math/rand/v2 more	5 months ago
proxymux	all: cleanup unused code, part 1 (#10661)	11 months ago
routetable	net/{interfaces,netmon}, all: merge net/interfaces package into net/netmon	7 months ago
socks5	…
sockstats	net/{interfaces,netmon}, all: merge net/interfaces package into net/netmon	7 months ago
speedtest	…
stun	all: make more tests pass/skip in airplane mode	6 months ago
stunserver	all: use Go 1.22 range-over-int	7 months ago
tcpinfo	all: use Go 1.22 range-over-int	7 months ago
tlsdial	tsd, ipnlocal, etc: add tsd.System.HealthTracker, start some plumbing	7 months ago
tsaddr	types/views: remove duplicate SliceContainsFunc	6 months ago
tsdial	tsnet,wgengine/netstack: add ListenPacket and tests	5 months ago
tshttpproxy	all: use Go 1.22 range-over-int	7 months ago
tstun	net/tstun: do SNAT after filterPacketOutboundToWireGuard	6 months ago
wsconn	…