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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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FS#74143 : [openssh] Can't authenticate with gpg-agent usb token since 8.9p1-1
- https://bugs.archlinux.org/task/74143
- Arch Linux Home Packages Forums Wiki Bugs Security AUR Download Arch Linux Username. / [..] USB hardware token (a Yubikey in my case) natively [..] / Login!
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Ubuntu Linux Login Guide - U2F - Yubico
- https://support.yubico.com/hc/en-us/articles/360016649099-Ubuntu-Linux-Login-Guide-U2F
- 4.3 Configuring the System to require the YubiKey for TTY terminal Open Terminal. run: sudo nano /etc/pam.d/login Add the line below after the "@include common-auth" line. auth required pam_u2f.so Press Ctrl+X and then Enter to save and close the file. Success! You will no longer be able to log in to the computer without the U2F device.
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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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[SOLVED] Couldn't verify signature for go with gnupg 2.3.1-1 / [testing] Repo Forum / Arch Linux Forums
- https://bbs.archlinux.org/viewtopic.php?pid=2024944
- Arch Linux Home Packages Forums Wiki Bugs Security AUR Download Index Rules Search Register Login You are not logged in. / Because as a Yubikey user, 2.3 solved a maj [..]
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Login via Yubikey on Linux (HMAC) - shibumi.dev
- https://shibumi.dev/posts/login-via-yubikey-on-linux-hmac/
- Login via Yubikey on Linux (HMAC) In this small article I want to explain how to use your Yubikey as 2-factor device for logins on Linux. I used the "Yubikey 5" for this article. If you use an older one, some option will maybe not work.
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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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Documentation and FAQ - KeePassXC
- https://keepassxc.org/docs/
- / OnlyKey. Does KeePassXC support two-factor authentication (2FA) with YubiKeys or OnlyKeys? How do I configure my YubiKey / OnlyKey for use with KeePassXC? When I use KeeChallenge with KeePass2, it creates an extra file. Why do
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Ubuntu Linux 20+ Login Guide - Challenge Response - Yubico
- https://support.yubico.com/hc/en-us/articles/360018695819-Ubuntu-Linux-20-Login-Guide-Challenge-Response
- 4.4 Configuring the System to Require the YubiKey for Login Open Terminal. Type: sudo nano /etc/pam.d/gdm-password. #for Password + YubiKey Add the line below the "@include common-auth" line. @include yubico-required #for YubiKey only Add the line above the "@include common-auth" line. @include yubico-sufficient
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A Short Guide To Using A Yubikey For SSH Authentication
- https://bash-prompt.net/guides/bash-ssh-yubikey/
- SSH is the default method for systems administrators to log into remote Linus systems. Traditionally, [SSH keys] are secured with a password. This situation can be improved upon by enforcing a second authentication factor - a Yubikey.. After you do this then only someone with both the password and the Yubikey will be able to use the SSH key pair to log into your Linus system.
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KeePassXC: User Guide
- https://keepassxc.org/docs/KeePassXC_UserGuide.html
- Generating a key on Linux or macOS with ssh-keygen
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19.04 - Passwordless login with Yubikey 5 NFC - Ask Ubuntu
- https://askubuntu.com/questions/1167691/passwordless-login-with-yubikey-5-nfc
- How to enable passwordless login Although you should be careful, the process is easy and straightforward. To make it even easier, I've written this so you can simply cut and paste the following commands into a terminal: sudo apt install libpam-u2f pamu2fcfg | sudo tee -a /etc/u2f_mappings # (At this point, press the button.
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System Hardening Checklist
- https://www.whonix.org/wiki/System_Hardening_Checklist
- Security hardening instructions for Whonix ™ and Qubes-Whonix ™. Improving Linux, Windows and macOS host computer security and networking configurations. Safe Tor, Tor Browser and other online activities.
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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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Yubikey Bio Reviewed (GitHub Auth & Linux Login ...
- https://www.gadgetoid.com/2021/12/05/yubikey-bio-reviewed-github-auth-linux-login/
- Enter your PIN and touch your Yubikey. This will create ~/.ssh/yubikey_bio (your private key) and ~/.ssh/yubikey_bio.pub (your public key). To add your new key to SSH you can then run: ssh-add -K And enter your PIN. This, you might notice, is a lot easier to type and remember than the wordy pkcs11 method.
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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/
- Look to see that your Yubikey device lights up 1 or 2 LED's after you enter your password. If you can get back into your graphical login after testing this, proceed with the next steps below. /etc/pam.d/login Add tab separated line that looks like this below @include common-auth auth required pam_u2f.so authfile=/etc/yubico/u2f_keys
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SSH login with yubikey using PIV | Random Thoughts
- https://blog.asksven.io/posts/ssh-login-with-yubikey/
- May 11, 2020 SSH login with yubikey using PIV Introduction This article will take you through setting-up a yubikey to hold your SSH private key. It assumes that you have a PIV-enabled yubikey: PIV, or FIPS 201, is a US government standard.
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System Authentication with Yubikey - Manjaro Linux Forum
- https://forum.manjaro.org/t/system-authentication-with-yubikey/33786
- I read that you can use the Yubikey as a second factor for system authentication. So basically if you want to login into your user account or use the sudo command you not only need to provide a passphrase but also have to touch the connected Yubikey. I wanted to set this up and most Arch related instructions boil down to this: Tutorial
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YubiKey - ArchWiki - Arch Linux
- https://wiki.archlinux.org/title/YubiKey
- The YubiKey takes inputs in the form of API calls over USB and button presses. The button is very sensitive. Depending on the context, touching it does one of these things: Trigger a static password or one-time password (OTP) (Short press for slot 1, long press for slot 2). This is the default behavior, and easy to trigger inadvertently.
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WebAuthn Web Authentication with YubiKey 5 | Linux Journal
- https://www.linuxjournal.com/content/webauthn-web-authentication-yubikey-5
- The YubiKey 5 series supports a broad range of two-factor and multi-factor authentication protocols, including: Challenge-response (HMAC-SHA1 and Yubico OTP). Client to Authenticator Protocol (CTAP). FIDO Universal 2nd-Factor authentication (U2F). FIDO2. Open Authorization, HMAC-Based One-Time Password (OATH-HOTP).
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YubiKey for SSH, Login, 2FA, GPG and Git Signing
- https://ocramius.github.io/blog/yubikey-for-ssh-gpg-git-and-local-login/
- Each login prompt, user password prompt or sudo command should require both our account password and our YubiKey. What we will have to do is basically: Install libpam-yubico Enable some capabilities of our YubiKeys with ykpersonalize Generate an initial challenge file for each YubiKey (you bought at least 2, right?) with ykpamcfg
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YubiKey and SSH via PAM
- https://developers.yubico.com/yubico-pam/YubiKey_and_SSH_via_PAM.html
- The purpose of this document is to guide readers through the configuration steps to use two factor authentication for SSH using YubiKey. This document assumes that the reader has advanced knowledge and experience in Linux system administration, particularly for how PAM authentication mechanism is configured on a Linux platform.
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HŌRU | Sign in to Linux from Windows via Yubikey
- https://horugame.com/sign-in-to-linux-from-windows-via-yubikey/
- Plug in the next Yubikey you wish to use to authenticate to Linux. gpg --expert --edit-key
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Ubuntu - Passwordless login with Yubikey 5 NFC - iTecTec
- https://itectec.com/ubuntu/ubuntu-passwordless-login-with-yubikey-5-nfc/
- Ubuntu - Passwordless login with Yubikey 5 NFC. 19.04 login yubikey. I just bought a Yubikey 5 NFC and have set it up per their instructions on Ubuntu 19.04. But my preferred use case is to use the key as passwordless option (if it's plugged in; allow access - if it's not; enter password).
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Configuring Yubikeys for SSH Authentication | Kali Linux ...
- https://www.kali.org/docs/general-use/configuring-yubikeys-for-ssh-authentication/
- This document explains how to configure a Yubikey for SSH authentication Prerequisites Install Yubikey Personalization Tool and Smart Card Daemon kali@kali:~$ sudo apt install -y yubikey-personalization scdaemon Detect Yubikey First, you'll need to ensure that your system is fully up-to-date. kali@kali:~$ pcsc_scan Scanning present readers... Reader 0: Yubico Yubikey 4 OTP+U2F+CCID 00 00 ...
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SSH authentication - Yubico
- https://developers.yubico.com/PGP/SSH_authentication/
- SSH authentication. A YubiKey with OpenPGP can be used for logging in to remote SSH servers. In this setup, the Authentication subkey of an OpenPGP key is used as an SSH key to authenticate against a server. To ensure that the only way to log in is by using your YubiKey we recommend disabling password login on your SSH server.
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PissedOffAdmins » Local linux login with yubikey u2f ...
- https://pissedoffadmins.com/general/local-linux-login-with-yubikey-u2f-google-authenticator-2fa.html
- 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. if this is working, lets move on to the google 2fa portion.
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FIDO2 Passwordless Yubikey Login | HYPR
- https://www.hypr.com/fido2-passwordless-yubikey-login/
- HYPR's True Passwordless YubiKey Integration provides: Interoperability with YubiKeys, FIDO U2F security keys, and built-in platform authenticators such as Windows Hello. Cross-cloud, cross-platform passwordless login to Windows, MacOS, Linux, and VDI workstations.
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Using Yubikeys with Fedora - Fedora Project Wiki
- https://fedoraproject.org/wiki/Using_Yubikeys_with_Fedora
- Using a yubikey for more than login We have configured the yubikey to be used in regular logins, but many users would like to use their yubikeys for tasks such as ssh and root elevation. In order to accomplish this, we must copy the pam_yubico.so line we've written into the other PAM modules we wish to integrate with.
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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/
- Using a U2F Yubikey with Linux Mint 19 Tara. Universal 2nd Factor (U2F) is an open authentication standard that strengthens and simplifies two factor authentication (2FA) using USB or NFC devices. It enables internet users to securely access any number of online services using a single security key with no drivers or client software.
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