Self-hosted, lightweight server and website monitoring and O&M tool
pg_activity is a top like application for PostgreSQL server activity
An eye on your system
Visibility into servers, applications, and infrastructure
A Complete Fast Android Networking Library that also supports HTTP/2
Comprehensive system monitor: real‑time performance, network, disk
Monitorix is a free, open source, lightweight system monitoring tool
Environment to experiment the system on simulated and real networks
This is now also available here github.com/sharkcz/collectl.git
Node Application Metrics provides a foundational infrastructure
TCP and UDP network buffer
Buffers, forwards, and splits flow data including NetFlow and IPFIX
Real time monitoring for embedded devices
Software, Server and Application Monitor
A server and database monitoring platform.