For secure remote maintenance and diagnosis of machines and systems via the Internet, Innominate has developed a highly-available 19-inch network security solution, which is used in service centers as a high-end firewall and VPN gateway. There it handles the specific requirements for building VPNs and then maintains these secure virtual private network connections to remote industrial systems. Because this node is responsible for up to 1,000 simultaneous VPN connections, the highest availability requirements are placed on it. For this reason, server hardware from Kontron is utilized. It meets availability requirements that are usually only found in carrier-grade telecommunications platforms, but at industry-standard pricing.