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Creating USBGuard Rules

In this lab, we'll be creating rules within USBGuard. These rules are what will permit or deny a host to communicate with a USB device. We'll also look at defining how to treat USB devices that dont meet any of the configured rules. *This course is not approved or sponsored by Red Hat.*

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Path Info

Level
Clock icon Intermediate
Duration
Clock icon 30m
Published
Clock icon May 17, 2019

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Table of Contents

  1. Challenge

    Create USBGuard Rules for Permitted Devices

    1. Create a local file named rules.conf and add two allow lines
    [root@host]# nano rules.conf

    Enter these two lines:

    allow name "Ubikey"
allow serial "7856749487475"

    Press Ctrl+x to quit, and save at the prompt

    1. Commit the USBGuard rule changes by running the following command
    install -m 0600 -o root -g root rules.conf /etc/usbguard/rules.conf

  2. Challenge

    Set Rule for Devices that Don't Meet Criteria

    1. Edit the /etc/usbguard/usbguard-daemon.conf file
    [root@host]# nano /etc/usbguard/usbguard-daemon.conf

    Set the ImplicitPolicyTarget to block:

    ImplicitPolicyTarget=block

    Press Ctrl+x to quit, and save at the prompt

    1. Restart the USBGuard service
    [root@host]# systemctl restart usbguard.service
A Cloud Guru - Labs - Creating USBGuard Rules
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A Cloud Guru

The Cloud Content team comprises subject matter experts hyper focused on services offered by the leading cloud vendors (AWS, GCP, and Azure), as well as cloud-related technologies such as Linux and DevOps. The team is thrilled to share their knowledge to help you build modern tech solutions from the ground up, secure and optimize your environments, and so much more!

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