Disclosed is a process for forming an N-acylamino pyrazole comprising contacting a N-acyl-3-oxo-imino ether compound either with a salt of hydrazine in the presence of a base or with hydrazine. An opening or a window in a firewall is made for the direct path by sending a null packet out from inside the firewall. A second temperature sensor for detecting the machining-fluid temperature in the machining tank is provided. Applications can use these virtual interfaces as if they are real interfaces using socket interfaces.