Andrea Gottardo fd77965f23
net/tlsdial: call out firewalls blocking Tailscale in health warnings (#13840)
Updates tailscale/tailscale#13839

Adds a new blockblame package which can detect common MITM SSL certificates used by network appliances. We use this in `tlsdial` to display a dedicated health warning when we cannot connect to control, and a network appliance MITM attack is detected.

Signed-off-by: Andrea Gottardo <andrea@gottardo.me>
2024-10-19 00:35:46 +00:00
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