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Labs

Granting `sudo` Privileges to Confined Users

In this lab, we'll review the process of granting `sudo` privileges to SELinux confined users. When working with SELinux confined users, you may run into problems with Linux users not being able to use `sudo` anymore. We'll discuss why this happens and how to resolve the issue. *This course is not approved or sponsored by Red Hat.*

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Labs

Path Info

Level
Clock icon Intermediate
Duration
Clock icon 30m
Published
Clock icon Jul 02, 2019

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Table of Contents

  1. Challenge

    Map `pbeesly` and `jhalpert` to the Appropriate SELinux User

    1. Become root.
    sudo su
    
    1. Run the following commands to map pbeesly and jhalpert to the staff_u SELinux user:
    semanage login -a -s "staff_u" pbeesly  
    semanage login -a -s "staff_u" jhalpert
    
  2. Challenge

    Add `pbeesly` and `jhalpert` to the `sudoers` File

    1. Open the sudoers file.
    visudo
    
    1. Type / and search for the line root ALL=(ALL) ALL.
    2. Add the following two lines under the line root ALL=(ALL) ALL:
    pbeesly  ALL=(ALL)  TYPE=administrator_t  ROLE=administrator_r  /bin/sh
    jhalpert  ALL=(ALL)  TYPE=administrator_t  ROLE=administrator_r  /bin/sh
    
  3. Challenge

    Update the SELinux Security Context of Each User's Home Directory

    1. Run the following commands to update the SELinux security context of each user's home directory:
    restorecon -FR -v /home/pbeesly
    restorecon -FR -v /home/jhalpert
    

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