DistroWatch.com: Put the fun back into computing. Use Linux, BSD.
News and feature lists of Linux and BSD distributions.
Phoronix
Linux Hardware Reviews & Performance Benchmarks, Open-Source News
Proxmox Server Solutions
Proxmox develops powerful and efficient open-source server solutions like the Proxmox VE platform, Proxmox Backup Server, and Proxmox Mail Gateway.
Debian -- The Universal Operating System
Debian Linux runs on just about anything and can be installed in a myriad of ways. I use it as my main workstation and it's as dependable as the sunrise.
Nmap: the Network Mapper - Free Security Scanner
Nmap Free Security Scanner, Port Scanner, & Network Exploration Tool. Download open source software for Linux, Windows, UNIX, FreeBSD, etc.
