pg_activity is a top like application for PostgreSQL server activity
Laravel Pulse is a real-time application performance monitoring tool
Maps an HTTP request to a set of configuration variables
APM, (Application Performance Management) tool
Application Performance Monitoring System
The Java agent for Apache SkyWalking
OWASP Coraza WAF is a golang modsecurity compatible firewall library
Easy to use open source fast database for search
A Java based fault and performance management system
CacheGuard Gateway is a UTM, a WAF, and a QoS management appliance.
Firewall log analyzer
Nagios Open Source network monitoring software - The Standard In ITM
Open Source Monitoring System for performance and availability.
Monitoring Tool for your IT Environment
free netflow analyzer
SkyWalking RocketBot UI
trace for PHP
Fast request router for PHP
Monitoring of websites with spider and email notifications
Simple remote host's ports scanner web app.
Two-factor authentication system