Network Security Interface Guard-A-LAN(tm) firewall systems are turnkey solutions for networks that support as few as five users and enterprise networks with thousands of clients. Firewalls are provided complete, with software, hardware, installation, and continuing support and configuration services. Interface firewalls feature ICSA-certified Secure Computing firewall software and can support multiple zones and VPN's. For over a year, Interface has been developing and implementing Secure's VPN (virtual private networking) technology which allows organizations with multiple branches to utilize a public network like the Internet as its backbone. VPN technology protects sensitive patron data in libraries yet allows seamless access to resources at a central site. When coupled with xDSL technology, a library could save thousands of dollars in operating costs per year while improving bandwidth and patron access to resources. Guardalan.pdf