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Display and Restore File and Directory Security Contexts with SELinux

This hands-on lab allows you to practice troubleshooting and resolving SELinux filesystem context issues. Being able to discover and resolve SELinux context issues is a key concept when working with SELinux. At the end of this activity, you will understand how to view and apply new security contexts to files and directories.

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Path Info

Clock icon Intermediate
Clock icon 1h 0m
Clock icon Nov 12, 2018

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Table of Contents

  1. Challenge

    Check the Directory and Index File Security Context

    Compare the SELinux security context of /var/www/html to the /var/www/html/web-api directory to determine if the context of the new directory and its contents need to be adjusted:

    • View the context of the html directory by running ls -Z /var/www.
    • View the context of the web-api directory by running ls -Z /var/www/html/web-api.
  2. Challenge

    Restore the Appropriate Security Context to the API Directory

    • Restore the context of the files and directories in the web /var/www/html directory by running sudo restorecon -R /var/www/html/web-api.
    • View the updated context by running ls -Z /var/www/html/web-api.
    • Verify that the update is working by running curl localhost/web-api/index.html.

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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.

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