CrowdSec is an open-source security engine that detects attacks from logs and blocks malicious IPs using bouncers and community-curated threat intelligence.

14.7k stars710 forksMITlast commit Actively maintained
Cloud-native cybersecurity platform that provides endpoint protection (EPP), endpoint detection and response (EDR), threat intelligence, managed detection and response (MDR), and vulnerability management to detect, investigate, and remediate threats across endpoints and workloads.
CrowdSec is an open-source security engine that detects attacks from logs and blocks malicious IPs using bouncers and community-curated threat intelligence.

14.7k stars710 forksMITlast commit Actively maintained
ClamAV is an open-source antivirus toolkit providing a multi-threaded daemon, command-line scanners, and automatic signature updates for mail gateways and file scanning.

7.2k stars911 forksGPL-2.0last commit Actively maintained
Every option on this page is open source and free to run on your own hardware, so you own the data and there is no subscription to cancel. 2 of 2 shipped a commit in the last six months. Licences in this list: MIT, GPL-2.0. In exchange you take on hosting, backups and updates yourself.
Browse everything in Network Security (VPN, Firewall, WAF).