Open Source Tripwire vs Paessler PRTG Network Monitor

Open Source Tripwire is free file and directory integrity-monitoring software for Linux, macOS, BSD variants, Solaris, AIX, HP-UX, Minix, Haiku, GNU/Hurd, and Cygwin. It compares the current filesystem with a known baseline and reports differences. A policy file defines monitored paths and checked attributes such as hashes, permissions, and ownership. Policy, configuration, and database files are signed by default, while reports may also be signed. Email reports are available when enabled in configuration. The project suggests scheduling periodic checks with cron, but its install script does not create those jobs. RPM, Debian, and make-based installation use a setup script for initial keys and policy creation. It runs on the user’s own system rather than as a managed service. Windows builds through Cygwin lack Registry monitoring and Windows-specific file attributes. The software uses GNU GPL version 2 or any later version. Separate commercial Tripwire products are also offered.

Paessler PRTG Network Monitor monitors systems, devices, network traffic, applications, and other infrastructure metrics from an on-premises installation. It runs on Windows servers and includes more than 250 preconfigured sensors, each measuring one or more aspects of a device. Monitoring tools include customizable alerts, scheduled reports, distributed monitoring, and dashboards with live status information. Paessler also lists adaptive AI-driven anomaly detection and smart sensor recommendations. PRTG provides an API for monitoring data and custom features, and can send webhook notifications to Slack and Microsoft Teams. Its free iOS and Android apps display monitoring data and send push notifications, but do not support cluster setups. The free plan covers up to 100 sensors; paid plans start at $200 per month paid annually. Each server accepts one license key, so license sizes cannot be combined on a server.