Mobile Kali iPad Setup with Raspberry Pi 4

In this video, we'll set up Kali Linux for use with the Raspberry Pi/iPad combo.

Getting Started

Start out by burning the Kali Raspberry Pi image to an SD card and booting up your Pi.

Set up USB-OTG ethernet

Edit /boot/cmdline.txt adding modules-load=dwc2,g_ether just before rootwait. Make sure you have a space before rootwait.

Then edit /boot/config.txt add dtoverlay=dwc2,dr_mode=peripheral as the last line.

Reboot the Pi.

Set up the usb0 network interface

Create /etc/network/interfaces.d/usb0:

auto usb0
    allow-hotplug usb0
    iface usb0 inet ipv4ll

Install avahi-autoipd with sudo apt install avahi-autoipd.

Configure Avahi daemon to start automatically

The Avahi daemon doesn't start automatically on Kali. Run sudo systemctl enable avahi-daemon to fix that. You may want to start Avahi immediately with sudo systemctl start avahi-daemon.

Force HDMI to start

Edit /boot/config.txt. Add:

framebuffer_width=1194
framebuffer_height=834
hdmi_force_hotplug=1

Change the width and height to fit the dimensions of your device.

Install and configure x11vnc

First off install the x11vnc package with sudo apt install x11vnc.

Then create a VNC password with sudo x11vnc -storepasswd /etc/vncserver.pass. Enter your desired VNC password when prompted.

To start x11vnc automatically, create a systemd unit file at /etc/systemd/system/vncserver.service:

[Unit]
Description=Start x11vnc at startup, before login.
After=multi-user.target

[Service]
Type=simple
ExecStart=/usr/bin/x11vnc -display :0 -auth guess -forever -loop -repeat -rfbauth /etc/vncserver.pass -rfbport 5900 -shared -localhost

[Install]
WantedBy=multi-user.target

Then run:

sudo systemctl start vncserver
sudo systemctl enable vncserver

You're now all set to connect your VNC client to the Kali Pi. In this configuration, you'll need an SSH tunnel to connect securely. Check the video for an example of how to configure this in Jump Desktop.