For Over 25 Years

We've Built Firewalls

Global Technology Associates, Inc. was founded in 1992, providing consulting and development services. Then in 1994 we introduce our first firewall, the GFX-94, a unique dual walled firewall. The GFX-94 was one of world's the first commercial firewalls. A few years later the innovative GNAT Box firewall was developed. This unique firewall was a total turnkey system that booted and ran off a 3.5" floppy diskette on a minimal Intel hardware platform. The GNAT Box system led the way to the GB-OS firewall operating system that in turn has powered all our firewall appliances and software firewalls since.

IPv6 Support

IPv6 is an internet protocol, the future of IP addresses that will replace the current IPv4 addresses. IPv6 addresses are 128-bit numbers, divided into eight, 16-bit hexadecimal blocks separated by colons. IPv4 addresses are 32-bit numbers with about 4.3 billion possible addresses. In contrast, IPv6 addresses are 128-bit numbers with approximately 340 undecillion (1036) possible addresses.

GTA firewalls provide three secure remote access methods: IPsec VPN, SSL VPN and SSL Browser. This provides users with the flexibility to remotely access an organization's resources by a method that best suits their needs; be it at home on a desktop or on the go with a smart phone. Each VPN license supports all three remote access methods simultaneously.

GB-OS has standard UTM features which can be augmented with subscription options that enhance the firewall capabilities. Web Content Filtering to control and manage user web access, Mail Proxy Anti-Spam/Anti-Virus to take charge of your email and Intrusion Prevention System updates to stay on top of new threats.

GB-OS Graphic


Our Turn-key Firewall Operating System.

All GTA firewall systems are powered by GB-OS, an original turn-key firewall operating system. GB-OS is a totally self-contained solution that integrates an operating system with innovative hybrid UTM firewall technology into a single high performance, compact system.
Learn more about GB-OS