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Managing sudo Access

In this lab, we will look at how to manage access to `sudo`. We will strengthen `sudo` security by removing unnecessary default settings and configure `sudo` to always require a password. Then, we'll permit specific user accounts to use `sudo`. *This course is not approved or sponsored by Red Hat.*

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Path Info

Clock icon Intermediate
Clock icon 30m
Clock icon May 17, 2019

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Table of Contents

  1. Challenge

    Disable the Use of the `wheel` Group in the `sudoers` File

    Comment out the following line in the /etc/sudoers file:

    %wheel  ALL=(ALL)       ALL 
  2. Challenge

    Provide Full `sudo` Access to `cloud_user`, `pbeesly`, and `jhalpert`

    Add the following lines to the /etc/sudoers file:

    cloud_user  ALL=(ALL)       ALL
    pbeesly     ALL=(ALL)       ALL
    jhalpert    ALL=(ALL)       ALL
  3. Challenge

    Configure `sudo` to Require a Password Each Time the `sudo` Command Is Used

    To require a password each time sudo is used, add the following line to the /etc/sudoers file:

    Defaults    timestamp_timeout=0

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