What is UFW allow?

Introduction. UFW (uncomplicated firewall) is a firewall configuration tool that runs on top of iptables , included by default within Ubuntu distributions. It provides a streamlined interface for configuring common firewall use cases via the command line.

What is UFW command in Ubuntu?

UFW – Uncomplicated Firewall

The default firewall configuration tool for Ubuntu is ufw. Developed to ease iptables firewall configuration, ufw provides a user friendly way to create an IPv4 or IPv6 host-based firewall. By default UFW is disabled. Gufw is a GUI that is available as a frontend.