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Labs

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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Lab platform
Lab Info
Level
Intermediate
Last updated
Aug 09, 2025
Duration
1h 0m

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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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