Featured resource
2025 Tech Upskilling Playbook
Tech Upskilling Playbook

Build future-ready tech teams and hit key business milestones with seven proven plays from industry leaders.

Check it out
  • Lab
    • Libraries: If you want this lab, consider one of these libraries.
    • Cloud
Google Cloud Platform icon
Labs

Using ACLs to Allow Collaboration

ACLs allow more granularity than octal permissions do. In this hands-on lab, we'll set up a collaboration area using ACLs to get some practice reading `getfacl` output and creating `setfacl` input.

Google Cloud Platform icon
Lab platform
Lab Info
Level
Beginner
Last updated
Sep 16, 2025
Duration
30m

Contact sales

By filling out this form and clicking submit, you acknowledge our privacy policy.
Table of Contents
  1. Challenge

    Use ACLs to Ensure Users Can Collaborate in the /opt/collab Directory

    The first thing we need to do is make sure Bob, Adam, and Sally are all members of the same group. This will allow us to use ACLs on the group to allow access.

    If we run id bob, id adam, and id sally we'll see that they're all members of the managers group.

    We can run setfacl -m g:managers:rwx /opt/collab to allow the managers group access to the directory.

  2. Challenge

    Remove Adam's Access to the /opt/collab Directory

    Since we can't remove him from the group, we can use ACLs to remove an individual user's access.

    We can run setfacl -m u:adam:0 /opt/collab and it will make sure that adam cannot access the directory.

About the author

Pluralsight Skills gives leaders confidence they have the skills needed to execute technology strategy. Technology teams can benchmark expertise across roles, speed up release cycles and build reliable, secure products. By leveraging our expert content, skill assessments and one-of-a-kind analytics, keep up with the pace of change, put the right people on the right projects and boost productivity. It's the most effective path to developing tech skills at scale.

Real skill practice before real-world application

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.

Learn by doing

Engage hands-on with the tools and technologies you’re learning. You pick the skill, we provide the credentials and environment.

Follow your guide

All labs have detailed instructions and objectives, guiding you through the learning process and ensuring you understand every step.

Turn time into mastery

On average, you retain 75% more of your learning if you take time to practice. Hands-on labs set you up for success to make those skills stick.

Get started with Pluralsight