To start ocserv at boot and stop it properly at shutdown, make sure
rc.local and rc.local_shutdown contain the following lines:

  /etc/rc.d/rc.local
  ==================
  # Start ocserv
  if [ -x /etc/rc.d/rc.ocserv ]; then
    /etc/rc.d/rc.ocserv start
  fi

  /etc/rc.d/rc.local_shutdown
  ===========================
  # Stop ocserv
  if [ -x /etc/rc.d/rc.ocserv ]; then
    /etc/rc.d/rc.ocserv stop
  fi