Facter vs hw-probe

Facter is a free command-line tool that gathers system information such as hardware details, network settings, and operating system type and version. Puppet uses it to collect information before requesting a catalog or compiling one with puppet apply. Its built-in core facts include legacy and structured facts, though some facts do not apply to every system. Users can add custom facts in Ruby, with multiple resolutions available for determining a value, or external facts that return static data or output from a script or program. Facts can be hashes or arrays, and Boolean, numeric, and structured values retain their types. Configuration can block fact groups or cache results with time-to-live settings. Facts are available in Puppet manifests, while the --puppet option loads Puppet-specific facts from the command line. PuppetDB's API can support exploration, search, and reporting on infrastructure facts. Facter runs on Linux, macOS, and Windows and can be self-hosted. Legacy facts are omitted from default command-line output unless --show-legacy is used. Puppet's custom-fact examples require some Ruby familiarity, and facter.conf must be created manually or managed with a module.

hw-probe is a free hardware probing tool for Linux and BSD systems, aimed at debugging computer problems and managing hardware inventory. It captures a snapshot of hardware state and logs, then provides a permanent URL to view the probe. If a device lacks a driver, it can suggest a Linux kernel version or third-party driver using LKDDb data. Users can create an inventory ID and mark probes to locate their computers on Linux-Hardware.org. Its monitoring command schedules a daily cron probe and emails alerts about operating-system failures, configuration changes, and hardware degradation. Optional tests check graphics, drive read speed, CPU performance, and RAM. Installation options include AppImage, Docker, Snap, Flatpak, Live CD/USB, and native packages. Uploads use HTTPS; selected logs can be disabled, and private details are decorated before upload, though edge-case failures are acknowledged. MAC addresses and serial numbers are represented by prefixes of salted SHA-512 hashes. The tool is dual-licensed under LGPL-2.1-or-later and BSD-4-Clause. The Snap package runs in a sandbox with limited functionality.