Similar to Firewalld

OpenVPN

Tomoyo Linux

WireGuard

Linux Unified Key Setup

Alien (file converter)

Cdrkit

Cgroups

Completely Fair Scheduler

Cooperative Linux

Docker (software)

Filesystem in Userspace

Gretl

Kernel-based Virtual Machine

Privoxy

Uncomplicated Firewall

Arping

Berkeley Open Infrastructure for Network Computing

Berkeley Packet Filter

Cisco IOS

Cyberduck

DCE Distributed File System

Distributed Computing Environment

Dnsmasq