FAI is a non-interactive system to install and configure Linux systems and software packages on computers as well as virtual machines, from small networks to large-scale infrastructures like clusters and virtual environments. (GPL)
Linux
Hiawatha is an webserver with security, easy to use and lightweight as the three key features. Hiawatha supports among others (Fast)CGI, IPv6, URL rewriting and reverse proxy. It has security features no other webserver has, like blocking SQL injections, XSS and CSRF attacks and exploit attempts. (GPL)
Cross-platform
The virt-manager application is a desktop user interface for managing virtual machines through libvirt. It primarily targets KVM VMs, but also manages Xen and LXC (linux containers). It presents a summary view of running domains, their live performance & resource utilization statistics. (GPL)
Linux
OpenVPN is a full-featured open source SSL VPN solution that accommodates a wide range of configurations, including remote access, site-to-site VPNs, Wi-Fi security, and enterprise-scale remote access solutions with load balancing, failover, and fine-grained access-controls. (GPL)
Cross-platform
WireGuard® is an extremely simple yet fast and modern VPN that utilizes state-of-the-art cryptography. It aims to be faster, simpler, leaner, and more useful than IPSec, while avoiding the massive headache. It intends to be considerably more performant than OpenVPN. (GPL)
Linux
Vesta is an open source hosting control panel with a clean and focused interface and the latest of very innovative technologies. All core functionality is free. (GPL)
Linux
Univention Corporate Server (UCS) is an integrated management system for the central and cross-platform administration of servers, services, clients, desktops and users as well as virtualized computers operated in UCS. (AGPL)
Cross-platform
The main goal of BorgBackup is to provide an efficient and secure way to backup data. The data deduplication technique used makes Borg suitable for daily backups since only changes are stored. The authenticated encryption technique makes it suitable for backups to not fully trusted ta (BSD)
Linux - MAC OS X - FreeBSD
Tilix is an advanced GTK3 tiling terminal emulator that follows the Gnome Human Interface Guidelines. (MPL)
Linux
Hyper is fully extensible Electron-based terminal built on HTML/CSS/JS. The goal of the project is to create a beautiful and extensible experience for command-line interface users, built on open web standards. (MIT)
Cross-platform