OWASP Coraza WAF is a golang modsecurity compatible firewall library
REST interface and configuration GUI for Nagios
PotHead
Open source tool to monitor your servers and websites
The Simplest Multi-User Latency Monitoring Web App
Scalable, distributed monitoring system for high-performance computing
single file multi-purpose multi-platform shell written in php
IOSec Addons are enhancements for web security and crawler detection