The heart of the Zorp-based firewall solution is the firewalling software itself, which is a set of proxy modules acting as application layer gateways. Zorp is an application proxy firewall. For details on the architecture of Zorp itself, see Section 2.2, The concepts and architecture of Zorp firewalls.

Zorp must be installed on an Ubuntu-based operating system (Ubuntu 18.04 LTS) which installs automatically when booting from the Zorp installation media.