defmodule MdnsLite do
  @moduledoc """
  A simple implementation of an mDNS (multicast DNS (Domain Name Server)) server.
  mDNS is based on multicast UDP rather than TCP. It's primary use is for DNS
  support for the `local`. `MdnsLite` listen on a well-known ip address/port. If
  a request arrives that is recognized, it constructs the appropriate DNS response.


  MdnsLite responds to a limited number of DNS requests; they are all handled
  in the `MdnsLite.Query` module. Of particular note is the SRV request. The
  response will be a list of known services and how to contact them (domain and port)
  as described in the configuration file.

  MdnsLite uses a "network monitor", a module that listens for changes in a network.
  Its purpose is to ensure that the network interfaces are up to date. The current
  version of MdnsLite has an `MdnsLite.InetMonitor` which periodically checks via `inet:getifaddrs()`
  for changes in the network. A change could be the re-assignment of IP addresses.

  This module is initialized, at runtime, with host information and service descriptions found
  in the `config.exs` file.  The descriptions will be used by the mDNS servers to
  construct a response to query.

  Please refer to the `README.md` for further information.

  """
end