Lab
A Cloud Guru

Configuring a Host Firewall on Ubuntu using UFW

In this lab, we will install and configure a firewall on an Ubuntu host using UFW. We will create the firewall rules to permit only VNC, HTTP, and SSH traffic inbound to the host and permit all outbound traffic from the host.

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Path Info

Level

Beginner

Duration

15m

Published

Mar 18, 2019

Challenge

Install UFW.

Run the commands sudo apt-get update and sudo apt-get install -y ufw.
Challenge

Configure the default rules to deny all inbound and permit all outbound.
Run the following commands:
- sudo ufw default deny incoming
- sudo ufw default allow outgoing
Challenge

Configure UFW to permit only VNC, HTTP, and SSH traffic to the Ubuntu host.
Run the following commands:
- sudo ufw allow 22
- sudo ufw allow 80
- sudo ufw allow 5900:5901/tcp
Challenge

Enable UFW.

Run the command sudo ufw enable.
Challenge

Install the Lighttpd web server.

Run the following command: sudo apt-get install -y lighttpd

Author

A Cloud Guru

The Cloud Content team comprises subject matter experts hyper focused on services offered by the leading cloud vendors (AWS, GCP, and Azure), as well as cloud-related technologies such as Linux and DevOps. The team is thrilled to share their knowledge to help you build modern tech solutions from the ground up, secure and optimize your environments, and so much more!

What's a lab?

Hands-on Labs are real environments created by industry experts to help you learn. These environments help you gain knowledge and experience, practice without compromising your system, test without risk, destroy without fear, and let you learn from your mistakes. Hands-on Labs: practice your skills before delivering in the real world.