DANE & TLSA: DNS-Based TLS Authentication is part of the Pro tier — advanced networking topics including BGP routing, Zero Trust, DDoS attacks, QUIC, TLS certificate chains, and more.
This scenario covers
How DANE (DNS-Based Authentication of Named Entities) uses DNSSEC-signed TLSA records to authenticate TLS certificates without relying on public CAs, defeating fraudulent CA issuances, and how SMTP DANE prevents downgrade attacks on email delivery.
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