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Baptiste Jonglez

20 Sep, 2018 08:38 AM
Persistent DNS Connections for Reliability and Performance by Baptiste Jonglez — last modified 20 Sep, 2018 08:40 AM

For decades, the Domain Name System (DNS) has relied on UDP as its transport protocol of choice, mostly because of its simplicity. New transports such as DNS-over-TLS and DNS-over-HTTPS are now gaining popularity: they offer increased privacy while preventing the use of the DNS as a DDoS attack vector. What may be less obvious is that they can also provide increased performance compared to UDP.