USBGuard

Using usbguard is pretty essential to protect against common attacks like malicious devices, USB Rubber Duckies, O.MG cables or the “governmental 3 letter agency equivalents”.

Especially thunderbolt (which can be blocked globally, see this config as to how can grant attackers access to your RAM, which means encryption keys and more.

  1. Install USBGuard

    Debian/Ubuntu or Linux mint:

    ”sudo apt install usbguard usbutils udisks2 usbguard-notifier

    Fedora:

    ”sudo dnf install -y usbguard usbguard-notifier usbguard-selinux

  2. Set it up

Varmista, että näppäimistö ja hiiri on kytketty.

Nämä komennot sallivat pysyvästi kaikkien tällä hetkellä liitettyjen laitteiden käytön:

pkexec sh -c '
        mkdir -p /var/log/usbguard
        mkdir -p /etc/usbguard
        chmod 755 /etc/usbguard
        usbguard generate-policy > /etc/usbguard/rules.conf
        systemctl enable --now usbguard.service
        usbguard add-user $1
    ' -- $ACTIVE_USERNAME
    systemctl enable --user --now usbguard-notifier.service