google-authenticator

Two-step verification

Install

All systems
curl cmd.cat/google-authenticator.sh
Debian Debian
apt-get install libpam-google-authenticator
Ubuntu
apt-get install libpam-google-authenticator
Alpine
apk add google-authenticator
Arch Arch Linux
pacman -S libpam-google-authenticator
image/svg+xml Kali Linux
apt-get install libpam-google-authenticator
Fedora
dnf install google-authenticator
Windows (WSL2)
sudo apt-get update sudo apt-get install libpam-google-authenticator
Raspbian
apt-get install libpam-google-authenticator
Dockerfile
dockerfile.run/google-authenticator
Docker
docker run cmd.cat/google-authenticator google-authenticator powered by Commando

libpam-google-authenticator

Two-step verification

The Google Authenticator project includes implementations of one-time passcode generators for several mobile platforms, as well as a pluggable authentication module (PAM). One-time passcodes are generated using open standards developed by the Initiative for Open Authentication (OATH) (which is unrelated to OAuth). These implementations support the HMAC-Based One-time Password (HOTP) algorithm specified in RFC 4226 and the Time-based One-time Password (TOTP) algorithm currently in draft.

google-authenticator

Google Authenticator PAM module