![]() This tutorial is written with IPv4 in mind, but will work for IPv6 as well as long as you enable it. ![]() If it has been uninstalled for some reason, you can install it with sudo apt-get install ufw. One Ubuntu 16.04 server with a sudo non-root user, which you can set up by following Steps 1-3 in the Initial Server Setup with Ubuntu 16.04 tutorial.This tutorial will show you how to set up a firewall with UFW on Ubuntu 16.04. If you’re looking to get started securing your network, and you’re not sure which tool to use, UFW may be the right choice for you. While iptables is a solid and flexible tool, it can be difficult for beginners to learn how to use it to properly configure a firewall. UFW, or Uncomplicated Firewall, is an interface to iptables that is geared towards simplifying the process of configuring a firewall.
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