Uncomplicated Firewall (UFW) is one such frontend of iptables and is particularly suitable for server-based firewalls. Ufw provides a framework for managing netfilter, as well as a command-line interface for managing a firewall that uses few and simple commands. Ufw is designed to provide an easy-to-use interface for those unfamiliar with firewall concepts, while simplifying complex iptables commands to help administrators who know what they are doing. UFW is also an upstream software package for other distributions and graphical frontends.