Latest News and Testimonials Aug 13, 2018 - FireHOL v3.1.6 released [more …] Apr 27, 2014 - I just wanted to thank you for … [more …] What are FireHOL and FireQOS? FireHOL is a language (and a program to run it) which builds secure, stateful firewalls from easy to understand, human-readable configurations. The configurations stay readable even for very complex setups. FireQOS is a program which se