syntax: rec_control [options] command, options as below:

  --chroot=...
	switch to chroot jail
  --config-dir=...
	Location of configuration directory (recursor.conf)
  --config-name=...
	Name of this virtual configuration - will rename the binary image
  --help
	Provide this helpful message
  --ignore-unknown-settings=...
	Configuration settings to ignore if they are unknown
  --process=...
	When controlling multiple recursors, the target process number
  --socket-dir=...
	Where the controlsocket will live, /var/run/pdns-recursor when unset and not chrooted
  --timeout=...
	Number of seconds to wait for the recursor to respond
  --version
	Show the version of this program

In addition, 'rec_control help' can be used to retrieve a list
of available commands from PowerDNS