Andrew Dunham 727acf96a6 net/netcheck: use DERP frames as a signal for home region liveness ... This uses the fact that we've received a frame from a given DERP region within a certain time as a signal that the region is stil present (and thus can still be a node's PreferredDERP / home region) even if we don't get a STUN response from that region during a netcheck. This should help avoid DERP flaps that occur due to losing STUN probes while still having a valid and active TCP connection to the DERP server. RELNOTE=Reduce home DERP flapping when there's still an active connection Updates #8603 Signed-off-by: Andrew Dunham <andrew@du.nham.ca> Change-Id: If7da6312581e1d434d5c0811697319c621e187a0		2023-12-13 16:33:46 -05:00
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healthmsg	cmd/tailscale: warn if node is locked out on bringup	2023-07-19 12:31:21 -05:00
health.go	net/netcheck: use DERP frames as a signal for home region liveness	2023-12-13 16:33:46 -05:00
health_test.go	all: use set.Set consistently instead of map[T]struct{}	2023-09-09 10:59:19 -07:00