Choosing the Right VPN for Grml

Grml is a Debian-based live system tailored to sysadmins, rescue operations and penetration testers. It utilises apt as its package manager and ships with minimalist desktop environments such as i3 or Xfce, favouring text-based tools and quick boot times over bloated GUIs. As an IT specialist working out of London, I recommend VPNs that integrate seamlessly into this environment, offering command-line utilities, clean .deb repositories, and minimal extra dependencies.

When selecting a VPN for Grml, consider:

• CLI-first integration: Grml users are comfortable in TTYs a terminal client is preferable.
• Debian-style repository support: Easy apt-add-repository or manual deb line installation.
• Protocol flexibility: WireGuard and OpenVPN support for modern security and fallback compatibility.
• No GUI dependencies: Avoid providers requiring NetworkManager or desktop environments.

Based on these criteria, the most suitable VPNs for Grml are:

• NordVPN – Robust CLI client, official Debian repo, WireGuard OpenVPN.
• Mullvad – Lightweight CLI with WireGuard config generator and .deb package.
• ProtonVPN – Official Linux CLI, OpenVPN WireGuard support, easy apt integration.

Comparison Table

NordVPN: Installation Configuration

NordVPN provides an official Debian repository and a dedicated CLI tool that works flawlessly in a pure TTY environment.

Step 1: Add the NordVPN Repository

sudo apt-get update
sudo apt-get install -y curl apt-transport-https
curl -sSL https://downloads.nordcdn.com/apps/linux/install.sh  sudo bash

Step 2: Log In Connect

nordvpn login
# Follow the URL, paste the code

nordvpn set autoconnect on
nordvpn set protocol nordlynx
nordvpn connect

This automatically installs the nordvpn service, configures WireGuard under the hood (NordLynx) and connects you to the fastest server.

Mullvad: Installation Configuration

Mullvad is beloved by privacy-centric admins. It offers a small CLI and native WireGuard config generation.

Step 1: Download Install

wget https://mullvad.net/download/app/deb/latest -O mullvad.deb
sudo dpkg -i mullvad.deb
sudo apt-get install -f

Step 2: Generate Apply WireGuard Profile

mullvad account login YOUR_ACCOUNT_NUMBER
mullvad wireguard generate --output /etc/wireguard/mullvad-wg.conf
sudo wg-quick up /etc/wireguard/mullvad-wg.conf

Replace YOUR_ACCOUNT_NUMBER with your Mullvad ID. This sets up a permanent WireGuard interface, ideal for fast reconnection on reboots.

ProtonVPN: Installation Configuration

ProtonVPN’s Python-based CLI works well on Grml, requiring only Python3 and pip3.

Step 1: Install the CLI

sudo apt-get update
sudo apt-get install -y python3-pip python3-setuptools python3-wheel
pip3 install protonvpn-cli
sudo protonvpn init

Step 2: Connecting via ProtonVPN

protonvpn c --sc # strongest country
# or
protonvpn c --fastest

The protonvpn init step will prompt for your ProtonVPN credentials and default protocol. This CLI is pure Python, so it remains light on system libraries.

Conclusion

For Grml’s no-nonsense environment, a terminal-centric VPN is non-negotiable. NordVPN excels with its integrated repo and streamlined CLI, Mullvad impresses with its privacy-first WireGuard tooling, and ProtonVPN strikes a balance via its simple Python client. Whichever you choose, the installation steps above will have you tunnelling securely in minutes, whether you’re deep in a London data centre or administering remote servers from a kiosk.