Sensu : Sensu is an infrastructure and application monitoring and telemetry solution. Sensu provides a framework for monitoring infrastructure, service & appl...
HttpWatch : An HTTP Viewer and HTTP Sniffer for IE and Firefox
bosh : BOSH is an open source tool for release engineering, deployment, lifecycle management, and monitoring of distributed systems.
Keycloak : Keycloak is an Open Source Identity and Access Management solution for modern Applications and Services.
A fully featured network monitoring system that provides a wealth of features and device support.