How To Setup UFW Firewall on Ubuntu 18.04 LTS

Setup UFW Firewall on Ubuntu 18.04 LTS

In this tutorial we will show you how to install UFW Firewall on Ubuntu 18.04 LTS. For those of you who didn’t know, The default firewall configuration tool for Ubuntu is ufw. Developed to ease iptables firewall setup, ufw provides a user friendly way to produce an IPv4 or IPv6 host-based antivirus. By default UFW is disabled.

This article assumes you have at least basic knowledge of Linux, know how to use the shell, and most importantly, you host your site on your own VPS. The installation is quite simple and assumes you are running in the root account, if not you may need to add ‘sudo’ to the commands to get root privileges. I will show you through the step by step installation UFW Firewall on an Ubuntu 18.04 Bionic Beaver server.

Setup UFW Firewall on Ubuntu 18.04 LTS Bionic Beaver

Step 1. First make sure that all your system packages are up-to-date by running these following apt-get commands in the terminal.

Step 2. Installing UFW Firewall on Ubuntu 18.04 LTS.

In Ubuntu 18.04, UFW is installed by default. If not, you can easily install it by running the following command:

To check whether ufw is running run:

After installation, UFW is deactivated. If you configure your server via SSH, it is important to release SSH before you enable UFW:

Step 3. UFW control.

Turn on:

Turn off:

Attention! The following are examples, please use only if you know what you are doing!

Allow protocol:

Allow port:

Allow Port Ranges:

Prohibit connections:

Deny protocol:

Deny port:

To see all services that can be allowed or denied in the system check out the /etc/services file:

Sample output:

For more usage commands you can use the –help flag:

Step 4. Managing UFW via graphical user interface (GUI).

Install gufw package if you wish to manage our UFW firewall via graphical user interface application:

Once installed, start Gufw by searching your start menu:

Setup UFW Firewall on Ubuntu 18.04 LTS

Congratulation’s! You have successfully install and setup UFW. Thanks for using this tutorial for installing UFW Firewall on your Ubuntu 18.04 Bionic Beaver system. For additional help or useful information, we recommend you to check the official UFW Firewall website.

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