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It's become common knowledge that running an open resolver is a security risk, because your open resolver will be abused with amplification attacks.

For amplification attacks to succeed, the attacker has to use IP spoofing. This is a lot harder with DoT and DoH, because the protocols require a TLS handshake to be done before queries can be sent.

Knowing this, it seems like running an open DoT/DoH resolver is safer than running an open resolver on port 53, but what are the risks of running an open DoT/DoH server?

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