google-authenticator-libpam

Install command: 
brew install google-authenticator-libpam

PAM module for two-factor authentication

https://github.com/google/google-authenticator-libpam

License: Apache-2.0

Development: Pull requests

Formula JSON API: /api/formula/google-authenticator-libpam.json

Formula code: google-authenticator-libpam.rb on GitHub

Bottle (binary package) installation support provided for:

macOS on
Apple Silicon		 tahoe ✅
sequoia ✅
sonoma ✅
ventura ✅
macOS on
Intel		 sonoma ✅
ventura ✅
Linux ARM64 ✅
x86_64 ✅

Current versions:

stable ✅ 1.11

Depends on:

qrencode 4.1.1 QR Code generation

Depends on when building from source:

autoconf 2.73 Automatic configure script builder
automake 1.18.1 Tool for generating GNU Standards-compliant Makefiles
libtool 2.6.2 Generic library support script
Add 2-factor authentication for ssh:
    echo "auth required $HOMEBREW_PREFIX/opt/google-authenticator-libpam/lib/security/pam_google_authenticator.so" \
    | sudo tee -a /etc/pam.d/sshd

Add 2-factor authentication for ssh allowing users to log in without OTP:
    echo "auth required $HOMEBREW_PREFIX/opt/google-authenticator-libpam/lib/security/pam_google_authenticator.so" \
    "nullok" | sudo tee -a /etc/pam.d/sshd

(Or just manually edit /etc/pam.d/sshd)

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