ufw

How to Configure a Firewall with UFW on Debian 9

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In this tutorial, we will show you how to install and use the UFW firewall system on a Linux VPS running Debian 9. Security is a very important thing to consider when you run your own server.

UFW (Uncomplicated Firewall) is a simple and user-friendly front-end for managing iptables firewall rules – UFW aims to provide an easy to use interface for the user, making a secure server more accessible to more users. It is specially designed for beginner users who are unfamiliar with firewall concepts.

Let’s begin with the installation.

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How To Set Up a Firewall with UFW on Ubuntu 16.04

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Set up a Firewall with UFW on Ubuntu
We’ll show you, how to set up a firewall with UFW on Ubuntu 16.04. If you have an Ubuntu server and you like to control the incoming and outgoing network traffic you need to configure the firewall that is included with your system. Linux kernel includes the netfilter subsystem which is a system for packet filtering. The traditional interface for manipulating netfilter is via iptables, which is primarily a database of firewall rules. The Uncomplicated Firewall or ufw is a frontend for iptables and it makes the iptables firewall configuration and blocking IP addresses much easier. In this guide, we will show you how to set up a firewall using UFW on a Linux VPS running Ubuntu 16.04 as an operating system.

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