dns.proxy

// called when the script is loaded
function onLoad() {
  // ...
}

// called when the module is stopped
function onExit() {
  // ...
}

// called when the DNS request is received by the proxy
// and before it is sent to the real resolver.
function onRequest(req, res) {
  // ...
}

// called when the DNS request is sent to the real resolver
// and a response is received.
function onResponse(req, res) {
  // ...
}

// called every time an unknown session command is typed,
// proxy modules can optionally handle custom commands this way:
function onCommand(cmd) {
  if (cmd == "test") {
    /*
     * Custom session command logic here.
     */

    // tell the session we handled this command
    return true;
  }
}