This tutorial illustrates installation of SafeWord for UNIX software in a dual-homed gateway host running UNIX to set up what we call a "SafeWord Internet Firewall". This machine, installed as a gateway between 2 separate networks, can positively identify everybody requesting access to the gateway machine in order to gain access to the network on the "other" side from them. It is an ideal way to secure a private network from the Internet. For further (more general) details about all of these Grasp tutorial software packages, see the "read.me" file from the directory above this level.