IPFire is a hardened, versatile, state-of-the-art Open Source firewall based on Linux. It has been developed in the open since 2004 and provides firewalling, VPN, intrusion prevention, a web proxy,...
A free database that tells you the country and the Autonomous System of every IP address, and which networks are anycast, satellite providers or hostile. It is updated daily, cryptographically sign...
Domain blocklists for advertising, malware, phishing and much more. They can be used by DNS resolvers, firewalls, intrusion prevention systems and browsers, are updated all the time, and are free f...
fireperf measures bandwidth like iperf3 does, but it has been built to test firewalls, routers and everything else that keeps state for every connection.
zone-sync fetches DNS zones from a primary by zone transfer and stores them as zone files, keeping them in sync with the primary.