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Ubuntu Linux Login Guide - U2F - Yubico

    https://support.yubico.com/hc/en-us/articles/360016649099-Ubuntu-Linux-Login-Guide-U2F
    Sep 23, 2020 · This guide covers how to secure a local Linux login using the U2F feature on YubiKeys and Security Keys. This does not work with remote logins via SSH or other methods. The commands in the guide are for an Ubuntu (or Ubuntu based) system, but the instructions can be adapted for any distribution of Linux.
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Using U2F at Linux Login - Mete Balci

    https://metebalci.com/blog/using-u2f-at-linux-login/
    Using U2F at Linux Login Introduction FIDO is the next big thing in multi factor authentication. Here is how I started using it to login my personal Linux computer. VERY IMPORTANT: You are going to change a very critical system file (/etc/pam.d/common-auth) in this tutorial.
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Arch Linux and U2F Login - Just Another Blag

    https://blog.jamesthebard.net/archlinux-and-u2f-login/
    Dec 30, 2016 · Generate /etc/u2f_mappings File. Insert the U2F key into the laptop. Using the pamu2fcfg command, grab the U2F key's information so we can add it to the u2f_mappings file. After running the command, ensure that you actually touch the U2F key. Also, the command is pamu2fcfg -ujweatherly, simply replace jweatherly with your login username.
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Desktop Login and Linux User Authentication — Nitrokey ...

    https://docs.nitrokey.com/u2f/linux/desktop-login.html
    Introduction ¶. This guide will walk you through the configuration of Linux to use FIDO Universal 2nd Factor, i.e. FIDO U2F with libpam-u2f and Nitrokey FIDO2.. If you want to login to you computer using Nitrokey Pro 2, Nitrokey Storage 2 and Nitrokey Start you can visit the instructions for Windows available here, and for Linux here.
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    https://docs.nitrokey.com/u2f/linux/desktop-login.html

TREZOR/U2F Login into Your Linux Mint | by SatoshiLabs ...

    https://blog.trezor.io/trezor-u2f-login-into-your-linux-mint-bd3684d4a8ba
    You’ll need your TREZOR to be running firmware 1.4 or greater. See: Second Factor Authentication with TREZORfor details. (If you do not have a TREZOR, any U2F dongle will do. Unlike a TREZOR, generic U2F devices do not have a display, but just a button. Press the button whenever prompted.) Once your TREZOR is ready, you’ll need to add U2F authentication as an option on your Linux machine. To do so, install the needed U2F packages by running:
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    https://blog.trezor.io/trezor-u2f-login-into-your-linux-mint-bd3684d4a8ba

Login via Yubikey on Linux (U2F) - shibumi.dev

    https://shibumi.dev/posts/login-via-yubikey-on-linux-u2f/
    Login via Yubikey on Linux (U2F) I was very happy with my HMAC challenge-response solution for my Yubikey, but when I wanted to configure my i3 status bar to show the current state of the key I ran into issues. The problem was that I couldn't see the state for the HMAC challenge. Watching the state (shall I press a button now to activate the ...
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    https://shibumi.dev/posts/login-via-yubikey-on-linux-u2f/

Secure your Ubuntu Linux login using ATKeys - AuthenTrend ...

    https://authentrend.com/secure-a-ubuntu-linux-login-using-u2f-with-atkeys/
    Jan 28, 2021 · Here's the simple guide to logging in to your personal Linux computer. Commands are mostly compatible with Ubuntu 20.04 LTS, but they should be also workable with some small modifications for other Linux distributions. Let’s see how to secure local Linux logins using the U2F feature on your ATKeys. Please see the video tutorial, you […]
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linux mint - Setting up a passwordless login with a U2F ...

    https://unix.stackexchange.com/questions/566870/setting-up-a-passwordless-login-with-a-u2f-token-yubikey-5
    1 I am trying to set up a passwordless login for Linux Mint 19.3, in order to be able to log in either with a Yubikey token or a password. I followed the instructions from Yubikey website and this thread, but I cannot make it work. Briefly, this is what I did: sudo pamu2fcfg -u `whoami` > /etc/Yubico/u2f_keys
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    https://unix.stackexchange.com/questions/566870/setting-up-a-passwordless-login-with-a-u2f-token-yubikey-5

Adding U2F to your Login in Linux! - The Way of The World

    https://modusmundi.com/2020/02/12/adding-u2f-to-your-login-in-linux/
    Adding U2F to your Login in Linux! On February 12, 2020 February 14, 2020 By Modus In Linux Bits So one thing I really appreciate about Yubikeys is that they force the issue of security.
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    https://modusmundi.com/2020/02/12/adding-u2f-to-your-login-in-linux/

Complete U2F Yubikey Linux Mint 20 Login with Encrypted ...

    https://blog.rtwm.io/2021/03/complete-u2f-yubikey-linux-mint-20-login-with-encrypted-home-folders/
    Main Considerations for U2F login on Linux Systems Graphical Window Manager Login Window (fresh boot, etc.) Screensaver / Lock Screen login window (current session) TTY Logins on virtual terminals. (typically tty1 - tty6) sudo access to elevate to root user privileges. Sample Yubikey product outlines Install required package(s) via apt or aptitude
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    https://blog.rtwm.io/2021/03/complete-u2f-yubikey-linux-mint-20-login-with-encrypted-home-folders/

login - How to configure a U2F key(such as a YubiKey) for ...

    https://askubuntu.com/questions/1071027/how-to-configure-a-u2f-keysuch-as-a-yubikey-for-system-wide-2-factor-authentic
    Any login attempt will be required to use a key for 2FA. The following is optional. 5. Disabling 2FA for sudo Personally, I didn't want to have to use my key to run sudo. Disabling it was quite simple, though a bit messy. I am unsure of if there is a better way to do this. Edit the sudo pam file again: sudo nano /etc/pam.d/sudo
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    https://askubuntu.com/questions/1071027/how-to-configure-a-u2f-keysuch-as-a-yubikey-for-system-wide-2-factor-authentic

Ubuntu Linux Login U2F doesn't work · Issue #226 · Yubico ...

    https://github.com/Yubico/pam-u2f/issues/226
    libpam-u2f: 1.2.0 How was it installed?: sudo apt install software-properties-common sudo apt-add-repository ppa:yubico/stable sudo apt update sudo apt install libfido2-dev Operating system and version: Ubuntu 18.04.6 LTS YubiKey model a...
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Yubikey Linux 2 Factor login and Sudo - AllTheSystems

    http://allthesystems.com/2020/09/yubikey-kubuntu-linux-2-factor-login-and-sudo/
    To set the Yubikey to be required for login and well anything that uses common-auth you can add this line to /etc/pam.d/common-auth auth required pam_u2f.so I added it to the end of the file and now my common-auth file looks like this: For me this made the login, lock and sudo all require both my password and my Yubikey.
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    http://allthesystems.com/2020/09/yubikey-kubuntu-linux-2-factor-login-and-sudo/

PissedOffAdmins » Local linux login with yubikey u2f ...

    https://pissedoffadmins.com/general/local-linux-login-with-yubikey-u2f-google-authenticator-2fa.html
    auth required pam_u2f.so cue interactive these items can be decoded here and now edit /etc/pam.d/login and add this line to the top: auth include yubico Now lets test that the yubikey u2f is working before fully login out. press alt+ctrl+f2 to bring you to a tty and you should see the u2f options here.
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    https://pissedoffadmins.com/general/local-linux-login-with-yubikey-u2f-google-authenticator-2fa.html

Using Your U2F YubiKey with Linux - Yubico

    https://support.yubico.com/hc/en-us/articles/360013708900-Using-Your-U2F-YubiKey-with-Linux
    To set up your Linux system for U2F: Verify that libu2f-udev is installed on your system. On Debian and its derivatives (Ubuntu, Linux Mint, etc.), check whether libu2f-udev is installed by running dpkg -s libu2f-udev. Install (if not already installed) using sudo apt install libu2f-udev.
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Universal 2nd Factor - ArchWiki - Arch Linux

    https://wiki.archlinux.org/title/Universal_2nd_Factor
    Click the button of your U2F key to confirm the key. Note: If the hostname of your system changes, e.g. because of DHCP in different networks, you would be unable to login. In order to prevent that, it is recommended to specify the above mentioned options and replace hostname with the actual hostname. If you own multiple keys, append them with
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    https://wiki.archlinux.org/title/Universal_2nd_Factor

Linux Security with YubiKey | Yubico

    https://www.yubico.com/works-with-yubikey/catalog/linux/
    Securely log in to your local Linux machine using Yubico OTP (One Time Password), PIV-compatible Smart Card, or Universal 2nd Factor (U2F) with the multi-protocol YubiKey. Users have the flexibility to configure strong single-factor in lieu of a password or hardware-backed two-factor authentication (2FA). Security protocol support
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    https://www.yubico.com/works-with-yubikey/catalog/linux/

U2F - Trezor Wiki

    https://wiki.trezor.io/U2F
    Due to the design of U2F, some services might implement a counter that records the number of sign-ins. However, if you have firmware version 1.4.2 or higher, the U2F counter is restored automatically. TREZOR/U2F Login on Your Linux Mint Note We would like to thank Shane Antyr who wrote this manual and let us use it.
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    https://wiki.trezor.io/U2F

YubiKey - ArchWiki - Arch Linux

    https://wiki.archlinux.org/title/YubiKey
    Handle Universal 2nd Factor (U2F) requests. Store and query approximately 30 OATH credentials. Handle challenge-response requests, in either the Yubico OTP mode or the HMAC-SHA1 mode. Generate One-time passwords (OTP) - Yubico's AES based standard. "Type" a static password up to 63 characters.
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    https://wiki.archlinux.org/title/YubiKey

Yubikey Bio Reviewed (GitHub Auth & Linux Login ...

    https://www.gadgetoid.com/2021/12/05/yubikey-bio-reviewed-github-auth-linux-login/
    This is something to consider before you march in and set up the u2f pam module for biometric system login. It's not all doom and gloom, though, I use the Yubikey Bio with my Alienware workstation every single day, authenticating multiple GitHub pushes and achieving dozens of successful authentications.
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    https://www.gadgetoid.com/2021/12/05/yubikey-bio-reviewed-github-auth-linux-login/

Using Yubikey on Ubuntu 20.10

    https://thematrix.dev/using-yubikey-on-ubuntu-20-10/
    Ubuntu Linux Login Guide - U2F 1 IntroductionThis guide covers how to secure a local Linux login using the U2F feature on YubiKeys and Security Keys. This does not work with remote logins via SSH or other methods.
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    https://thematrix.dev/using-yubikey-on-ubuntu-20-10/

Using a U2F Yubikey with Linux Mint 19 Tara - Abort, Retry ...

    https://www.abort-retry-fail.com/2018/09/29/using-a-u2f-yubikey-with-linux-mint-19-tara/
    To set up your Linux system for YubiKey U2F go to GitHub and download the 70-u2f.rules file. See below for a copy of this file: Create a copy of the file called 70-u3f.rules into the Linux directory /etc/udev/rules.d . if the file is already there, ensure that the content looks like the one provided. Reboot your system to apply the changes.
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    https://www.abort-retry-fail.com/2018/09/29/using-a-u2f-yubikey-with-linux-mint-19-tara/

TREZOR/U2F Login into Your macOS (Updated) | by Bach N ...

    https://blog.trezor.io/trezor-u2f-login-into-your-mac-os-x-9fdd808b0aa4
    In general, it seems like Apple's FDE limits the usability of U2F login, at least for the first login to decrypt. This is because the pam-u2f module, installed through Homebrew, is located in /usr/local/, and the credentials file is in Home directory. These folders are encrypted and thus unreadable for U2F, before the first login.
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    https://blog.trezor.io/trezor-u2f-login-into-your-mac-os-x-9fdd808b0aa4

Application Ideas - Solo Technical Documentation

    https://docs.solokeys.dev/application-ideas/
    This was tested on Linux Mint 19.3 and on Manjaro 18.x. First you have to install PAM modules for u2f. Ubuntu (Linux Mint): sudo apt install libpam-u2f pamu2fcfg Manjaro. pacman -Syu pam-u2f Setting up key. To use Solo as passwordless or second factor login, you have to setup your system with your Solo.
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    https://docs.solokeys.dev/application-ideas/

Gnome Keyring doesn't get unlocked with pam_u2f.so - GitHub

    https://github.com/Yubico/pam-u2f/issues/130
    Without that, a password may need to be supplied from pam-u2f. But, pam is doing the unlocking on login. pam-u2f needs to be also since its replacing the pam password and thus auto unlock is broken as a result.
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Ubuntu - Yubico

    https://www.yubico.com/works-with-yubikey/catalog/ubuntu/
    Ubuntu is an easy to use Linux-based operating system used by both commercial and community teams to collaborate and produce a single, high-quality release. Secure your local Linux login using the U2F or Challenge-Response feature on YubiKeys and Security Keys.
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    https://www.yubico.com/works-with-yubikey/catalog/ubuntu/

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