2fa - Sysorchestra

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2fa

A collection of 3 posts

Automate TOTP-secured SSH logins with 2sh and Bitwarden

Automate TOTP-secured SSH logins with 2sh and Bitwarden

As an additional way to protect SSH servers from potential attackers, I started to implement TOTP-based 2FA logins in the past. See this post about how I achieved this. I also use Bitwarden to store all my credentials and also TOTP tokens and since I was tired of always manually

Enabling U2F Hardware token in Linux

Enabling U2F Hardware token in Linux

I recently switched from MacOS to Linux for my work computer and found out that using a hardware U2F USB token is not so easy as on MacOS. I'm using a Yubikey and several self-made Tomu-based U2F tokens and now i wanted to also use them on Linux. For this

Add Two-Factor-Authentication to SSH on Debian Wheezy to Stretch

Introduction This guide shows you, how you can add 2FA to your OpenSSH on Debian Wheezy, Jessie and Stretch using Google Authenticator. We assume that your SSH already uses Pubkey-Authentication while PasswordAuthentication is disabled. Also this guide should also work on Debian's derivates and maybe other distros. Limitations I have