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Eon – An Effects-Based OCaml Nameserver
is an Effects-based OCaml Nameserver using MirageOS’s functionally pure Domain Name System (DNS) library with direct-style IO (as opposed to monadic IO) using OCaml 5’s effect handlers [1] created as the basis to implement some of ideas from the Spatial Name System. §DNS Tunnelling DNS is well-known to be used for data exfiltration and tunneling, since DNS is one of the few protocols that’s almost always allowed through a firewall (at least through a recursive resolver) since it’s so fundamental to the operation of the Internet.
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