DNS client and server implementation in pure OCaml

This is a pure OCaml implementation of the DNS protocol. It is intended to be a reasonably high-performance implementation, but clarity is preferred rather than low-level performance hacks.

There are several concrete implementations using this package that you probably want to use for practical purposes:

• dns-lwt for the Lwt concurrency library
• dns-lwt-unix using the Lwt_unix bindings
• dns-async using the Jane Street Async library
• mirage-dns for the MirageOS unikernel framework