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DNS over...

DNS over SMS

SMS carries a compact representation of DNS questions and replies, demonstrating a constrained alternative to the usual UDP or TCP exchange.

SMStransportmessaging

Date updated:

Screenshot used in the talk for DNS over SMS
Screenshot used in the original talk.

DNS packets can be represented in a short-message workflow. The resulting exchange is slow and constrained, but it demonstrates that DNS semantics do not require the usual UDP or TCP path.

This belongs in the transport gallery: unusual, ingenious, and very context dependent.

Primary source: https://twitter.com/scott_helme/status/982401557906862080