Feature request: Connectivity test and bootstrap resolvers about doh-auth-proxy

[przemyslaw0]

@junkurihara

Thanks.

I'm thinking on using doh-auth-proxy as a service in both Windows and Linux, network connectivity would be very good.

[junkurihara]

Hi @przemyslaw0

Thanks for your suggestions!

For the network connectivity test, doh-auth-proxy has a feature of periodic health check to check the connectivity between the proxy and the destination. But as you suggested, it simply alerts the disconnection, and it is not used to update the internal list of relays and destination resolvers. So like the dnscrypt-proxy, the dynamic updates of healthy relays and destination would be nice.

For the feature of bootstrap resolvers, you can configure it with doh-auth-proxy as with dnscrypt-proxy. But unlike dnscrypt-proxy, only one resolver address can be specified, and doh-auth-proxy doesn't use the system resolver even if not specified (Default is Google DNS).

doh-auth-proxy/doh-auth-proxy.toml

Lines 14 to 15 in ee65688

	## DNS (Do53) resolver address for bootstrap
	bootstrap_dns = "8.8.8.8:53"