Kali Linux Tutorials

Dockernymous is a script used to create a whonix like gateway/workstation environment with docker containers. It is a start script for Docker that runs and configures two individual Linux containers in order act as a anonymisation workstation-gateway set up.

It’s aimed towards experienced Linux/Docker users, security professionals and penetration testers!

The gateway container acts as a Anonymizing Middlebox (seehttps://trac.torproject.org/projects/tor/wiki/doc/TransparentProxy) and routes ALL traffic from the workstation container through the Tor Network.

The idea was to create a whonix-like setup (see https://www.whonix.org) that runs on systems which aren’t able to efficiently run two hardware virtualized machines or don’t have virtualisation capacities at all.

Also Read – Explo : Human & Machine Readable Web Vulnerability Testing Format

Requirements

Host (Linux):

• docker
• vncviewer
• xterm
• curl

Gateway Image:

• Linux (e.g. Alpine, Debian )
• tor
• procps
• ncat
• iptables

Workstation Image:

• Linux (e.g. Kali)
• ‎xfce4 or another desktop environment (for vnc access)
• tightvncserver

Instructions

• Host

To clone the dockernymous repository type:

git clone https://github.com/bcapptain/dockernymous.git

Dockernymous needs an up and running Docker environment and a non-default docker network. Let’s create one:

docker network create –driver=bridge –subnet=192.168.0.0/24 docker_internal

• Gateway (Alpine):

Get a lightweight gateway Image! For example Alpine:

docker pull alpine

Run the image, update the package list, install iptables & tor:

docker run -it alpine /bin/sh
apk add –update tor iptables iproute2
exit

Feel free to further customize the gateway for your needs before you extit.

To make this permanent you have to create a new image from the gateway container we just set up. Each time you run dockernymous a new container is created from that image and disposed on exit:

docker commit [Container ID] my_gateway

Get the container ID by running:

docker ps -a

• Workstation (Kali Linux):

Get an image for the Workstation. For example, Kali Linux for penetration testing:

docker pull kalilinux/kali-linux-docker

Update and install the tools you would like to use (see https://www.kali.org/news/kali-linux-metapackages/).

docker run -it kalilinux/kali-linux-docker /bin/bash
apt-get update
apt-get dist-upgrade
apt install kali-linux-top10

Make sure the tightvncserver and curl packages are installed which is the case with most Kali Metapackages.

apt-get install tightvncserver
apt-get install curl

Install xfce4 for a minimal graphical Desktop:

$ apt-get install xfce4
$ apt-get clean
$ exit

As with the Gateway, to make this permanent you have to create an image from that customized container. Each time you run dockernymous a new container is created and disposed on exit.

$ docker commit [Container ID] my_workstation

Get the container ID by running:

$ docker ps -a

• Run dockernymous In case you changed the names for the images to something different (defaults are: “docker_internal” (network), “my_gateway” (gateway), “my_workstation” (you guess it)) open dockernymous.sh with your favorite editor and update the actual names in the configuration section.

Everything should be set up by now, let’s give it a try! Run Dockernymus (don’t forget to ‘cd’ into the cloned folder):

bash dockernymous.sh

or mark it executable once:

chmod +x dockernymous.sh

and always run it with:

./dockernymous.sh

I’m happy for feedback. Please remember that dockernymous is still under development. The script is pretty messy, yet so consider it as a alpha phased project (no versioning yet).