Skip to content

Contact sales

By filling out this form and clicking submit, you acknowledge our privacy policy.
  • Labs icon Lab
  • A Cloud Guru
Google Cloud Platform icon

Managing Permissions and ACLs in SUSE Linux Enterprise

In this hands-on lab, we will be looking at user permissions and access control lists (ACLs). It is important to understand the effects permissions and ACLs can have on system security.

Google Cloud Platform icon

Path Info

Clock icon Beginner
Clock icon 45m
Clock icon Dec 20, 2019

Contact sales

By filling out this form and clicking submit, you acknowledge our privacy policy.

Table of Contents

  1. Challenge

    Correct the Issue with the `devuser` Being Able to Delete the `cloud_user`'s File Located in `/shareddata`

    1. Verify the issue as the cloud_user:

      cd /shareddata
      touch examplefile
    2. Switch to the devuser:

      su devuser (password is P@ssw0rd)
      rm ./examplefile
    3. As the cloud_user, check the permissions on the /shareddata folder:

      ls -l /

      Output: d---rws--- root collab shareddata

      Note that on the shareddata directory, there is no sticky bit set, but the GID is set 'denoted by the s'.

    4. Set the sticky bit as cloud_user:

      sudo -i chmod 3070 /shareddata
    5. Repeat the file create as cloud_user and then try to remove the file as devuser to verify it is working as intended.

  2. Challenge

    Correct the Issue that Is Preventing `testuser` from Being Able to Write to `/home/cloud_user/file`

    1. Verify the issue as the cloud_user:

      cd ~/
      su testuser
      echo 'testing' >> file
    2. Check the ACL on the file:

      getfacl file

    Note the mask and the effective permissions.

    1. Correct the mask as the cloud_user:

      setfacl -m m::rwx file
    2. Verify the issue has been corrected:

      su testuser
      echo 'testing' >> file
      cat file

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.

Provided environment for hands-on practice

We will provide the credentials and environment necessary for you to practice right within your browser.

Guided walkthrough

Follow along with the author’s guided walkthrough and build something new in your provided environment!

Did you know?

On average, you retain 75% more of your learning if you get time for practice.

Start learning by doing today

View Plans