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Working with Linux File Access Control Lists (FACLs)

In this lab, we'll review what file access lists (FACLs) are used for. We'll set up a FACL to restrict access to a single file. We'll implement one rule to permit access for a single user, and then we'll edit permissions to remove access for all other users.

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Path Info

Level
Clock icon Beginner
Duration
Clock icon 30m
Published
Clock icon Apr 15, 2019

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Table of Contents

  1. Challenge

    Create user account `pjohnson` and the project directory and file.

    1. Create the user account pjohnson with the following command: 
      sudo useradd pjohnson
    2. Create the project directory with the following command: 
      sudo mkdir /project51
    3. Create the TPSreport.txt file in the /project51 directory with the following command: 
      sudo touch /project51/TPSreport.txt

  2. Challenge

    Create FACL to permit user `pjohnson` access to file `TPSreprot.txt`.

    1. Create a FACL for /project51/TPSreport.txt permitting user pjohnson RWX access:

      sudo setfacl -m u:pjohnson:rwx /project51/TPSreport.txt

  3. Challenge

    Remove access for other users from the file `/project51/TPSreport.txt`.

    1. To remove other users' access, use the following command:

      sudo chmod o-rwx /project51/TPSreport.txt
A Cloud Guru - Labs - Working with Linux File Access Control Lists (FACLs)
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!

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