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Controlling System Services with Systemd

Systemd both controls the start of services on a system and starts a journal of system activity. In this lab, students will start, stop, and restart system services. We also demonstrate how to start them at reboot and disable them so they don't start after reboots.

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Labs

Path Info

Level
Clock icon Beginner
Duration
Clock icon 15m
Published
Clock icon Oct 23, 2020

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Table of Contents

  1. Challenge

    Log in to the Lab Environment as `cloud_user` and Gain `root` Access

    # sudo -i
    
  2. Challenge

    Check the Status of the `httpd` Service, Restart It, and Configure It

    Check the status of the httpd service.

    
     # systemctl status httpd
    

    Restart the httpd service.

    # systemctl restart httpd
    

    Set the httpd service to start at system startup.

    # systemctl enable httpd
    

    Check the status of the httpd service. It should state running and enabled.

    # systemctl status httpd
    
  3. Challenge

    Check the Status of the `named` Service, Start It, and Configure It

    Check the status of the named service.

    # systemctl status named
    

    Start the named service.

    # systemctl start named
    

    Set the named service to start at system startup.

    # systemctl enable named
    

    Check the status of the named service and ensure it is both running and set to start at system startup.

    # systemctl status named
    
  4. Challenge

    Check the Status of the `nfs-server` Service, Stop It, and Configure It

    Check the status of the nfs-server service.

    # systemctl status nfs-server
    

    Stop the nfs-server service.

    # systemctl stop nfs-server
    

    Disable the nfs-server service so it doesn't start on system startup.

    # systemctl disable nfs-server
    

    Verify the nfs-server service is stopped and set it to not start at system startup.

    # systemctl status nfs-server
    

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