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Deploy from Fedora Workstation

These docs were written based on experience on Fedora Workstation 26.

Prerequisites

DNF counterparts of apt packages

The following table lists apt packages with their dnf counterpart. This is purely informative. Using python2-* in favour of python3-* as per declared dependency.

apt dnf
build-essential make automake gcc gcc-c++ kernel-devel
libssl-dev openssl-devel
libffi-dev libffi-devel
python-dev python-devel
python-pip python2-pip
python-setuptools python2-setuptools
python-virtualenv python2-virtualenv

Install requirements

First, let's make sure our system is up-to-date:

dnf upgrade

Next, install the required packages:

dnf install -y \
  ansible \
  automake \
  gcc \
  gcc-c++ \
  kernel-devel \
  openssl-devel \
  libffi-devel \
  libselinux-python \
  python-devel \
  python2-pip \
  python2-setuptools \
  python2-virtualenv \
  make

Get Algo

Download or clone:

git clone [email protected]:trailofbits/algo.git
cd algo

If you downloaded Algo, unzip to your prefered location and cd into it. We'll assume from this point forward that our working directory is the algo root directory.

Prepare algo

Some steps are needed before we can deploy our Algo VPN server.

Check pip

Run pip -v and check the python version it is using:

$ pip -V
pip 9.0.1 from /usr/lib/python2.7/site-packages (python 2.7)

python 2.7 is what we're looking for.

pip upgrade and installs

# Upgrade pip itself
pip -q install --upgrade pip
# python-devel needed to prevent setup.py crash
pip -q install pycrypto       
# pycrypto 2.7.1 needed for latest security patch
# This may need to run with sudo to complete without permission violations
pip -q install setuptools --upgrade
# virtualenv to make installing dependencies easier
pip -q install virtualenv

Setup virtualenv and install requirements

virtualenv --system-site-packages env
source env/bin/activate
pip -q install --user -r requirements.txt

Configure

Edit the userlist and any other settings you desire in config.cfg using your prefered editor.

Deploy

We can now deploy our server by running:

./algo

Ensure to allow Windows / Linux clients when going through the config options. Note the IP and password of the newly created Alfo VPN server and store it safely.

If you want to setup client config on your Fedora Workstation, refer to the Linux Client docs.

Notes on SELinux

If you have SELinux enabled, you'll need to set appropriate file contexts:

semanage fcontext -a -t ipsec_key_file_t "$(pwd)(/.*)?"
restorecon -R -v $(pwd)

See this comment.