Step-by-step – Realtek rtl8821AU Driver Kali Linux Installation

November 8, 2020 | By the+gnu+linux+evangelist | Filed in: Tutorial.

Downloading

  1. 2. Installing Requirements

    Then to Install Required Stuff
    Run:

    sudo apt install build-essential linux-headers-$(uname -r) dkms unzip git

    Authenticate with the User Admin Pass.
    If Got “User is Not in Sudoers file” then see: How to Enable sudo.

  2. 3. Downloading Realtek rtl8821AU Driver

    (Bewilderment can arise because this setup is making use of the rtl8812AU Code)
    Download Realtek rtl8821AU Driver for Kali GNU/Linux

    Get Realtek rtl8821AU Driver for Kali Linux

    Or better Clone it with Git.
    Especially relevant: in the New Posts Revision I have included a greate Alternative to the default gnab Driver.
    So, in case of the aircrack-ng choice then follow the Github Developer Documentation to setup it.
    Especially relevant: the Aircrack-ng release include support for “Monitor mode” and “Frame injection“!

  3. 4. Extracting Realtek rtl8821AU Driver

    And then Extract Driver Archive into /tmp
    (Skip in case of Git Checkout)
    Possibly Double-Click/Right-Click on Package and Open with Archive Manager:

    Step-by-step Realtek rtl8821AU Driver Kali Linux Installation - Extraction
    Or from Command Line:

    sudo unzip -d  /tmp/ ~/Downloads/*master.zip

    (But if downloaded with Firefox it may be instead into /tmp/mozilla*)

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