2FA-SSH-Shell

Two-Factor Authentication with Telegram Bot for SSH / Shell Login

Setup

Create Your Own Bot:

Chat @BotFather with /newbot

Setup Bot for OTP Sender

Open your API: https://api.telegram.org/bot[HTTP_API_KEY]/getUpdates
Chat your Telegram Bot
Copy your Chat ID
Download shell2FA source
Change configuration API KEY & Chat ID on "shell2FA" source
Move shell2FA to /bin/ (mv shell2FA /bin/)
chmod +x /bin/shell2FA
Change shell in /etc/passwd => Example /bin/bash to /bin/shell2FA