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Managing Users in Linux

In this lab, we are going to manage users and groups to get some practice using these utilities. Knowing how to manage users and permissions means our servers will be more secure. *This course is not approved or sponsored by Red Hat.*

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Path Info

Clock icon Beginner
Clock icon 30m
Clock icon Apr 05, 2019

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Table of Contents

  1. Challenge

    Add the Users to the Server

    To add users to the system we can run

    useradd <username>

    So we would run

    useradd tstark

    useradd cdanvers

    useradd dprince

  2. Challenge

    Create the `superhero` Group

    To create a new group we would run

    groupadd <groupname>

    So for this task

    groupadd superhero

  3. Challenge

    Set `wheel` Group as the the `tstark` Account's Primary Group

    For this task we would run usermod like this

    usermod -g wheel tstark

  4. Challenge

    Add `superhero` as a Supplementary Group on All Three Users

    There isn't an easy way to do this all at once, so we need to run the following command for each user

    usermod -aG superhero <username>


    usermod -aG superhero tstark

    usermod -aG superhero dprince

    usermod -aG superhero cdanvers

  5. Challenge

    Lock the `dprince` Account

    To lock an account all we have to do is run:

    usermod -L dprince

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