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Combines traceroute and ping into a single diagnostic tool. Shows real-time packet loss and latency at each hop. Essential for network troubleshooting.

Scalable and extensible monitoring system. Fork of Nagios with modern architecture, REST API, distributed monitoring, and Icinga Web 2 dashboard.

Full-featured network monitoring system. Auto-discovers your network using CDP, FDP, LLDP, OSPF, BGP, SNMP. Supports 1000+ device types.

Networked resource monitoring tool. Creates graphs of trends using RRDtool. Plug-and-play architecture with hundreds of monitoring plugins.

Low-maintenance auto-discovering network monitoring platform. Supports SNMP, CDP/LLDP discovery, and provides detailed per-port traffic graphs.

Cross-platform system monitoring tool written in Python. Shows CPU, memory, disk, network, Docker containers, processes in a single terminal view.

System statistics collection daemon. Collects performance metrics from the OS and applications, stores them in RRD files or forwards to other systems.

Enterprise-grade network and infrastructure monitoring. Supports SNMP, native agents, SSH, WMI. Includes event management, dashboards, and reporting.

Fast, cost-effective, and scalable time-series database. Drop-in replacement for Prometheus. Handles billions of time series with minimal resources.

Open-source virtualization management platform. Web-based management for KVM. Supports live migration, storage management, and network configuration.

Horizontally-scalable log aggregation system by Grafana Labs. Like Prometheus, but for logs. Indexes labels, not full text, for cost-effective log storage.

Comprehensive IT monitoring for servers, networks, clouds, and containers. Free edition with unlimited hosts. Auto-discovery, dashboards, alerting.

Fast remote desktop for everybody. Enterprise-grade performance with NX protocol. Free for personal use with up to 10 connections.

Feature-rich remote desktop client for Linux. Supports RDP, VNC, NX, XDMCP, SPICE, SSH, SFTP, and HTTP/HTTPS in a GTK+ application.

Clientless remote desktop gateway. Access RDP, SSH, VNC, Telnet, and Kubernetes through a web browser. No plugins or client software needed.

Free, lightweight VNC implementation. Optimized for slow network connections with tight encoding. Includes viewer and server components.

Powerful VNC software for Windows with file transfer, chat, video driver for performance, and encryption plugin. Popular for IT support.

SSL/SSH VNC viewer. Wraps VNC connections in SSL or SSH tunnels for secure remote access. Supports UltraVNC and TightVNC servers.

Open-source software KVM switch. Share a single keyboard and mouse between multiple computers. Fork of Synergy, free and cross-platform.

Free, open-source web application security scanner. Finds vulnerabilities in web apps automatically. Supports active/passive scanning, fuzzing, and scripting.

Open-source web server scanner. Tests for 7000+ dangerous files, outdated versions, and server configuration issues. Essential for web security audits.

Security auditing and hardening tool for Linux and macOS. Performs system scanning, vulnerability detection, and compliance testing. No agent required.

High-performance network IDS, IPS, and network security monitoring engine. Multi-threaded, supports Snort rules, Lua scripting, and JSON output.

Utility for identifying, reading, writing, and erasing flash chips.