Questions tagged [google-authenticator]

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Avoiding Google Authenticator Re-Authentication for Existing SSH Sessions on EC2

I've configured Google Authenticator for 2FA on my Almalinux 9 EC2 instance to secure SSH access. However, I'm prompted for the Google Authenticator code every time I open a new SSH session, even when ...
Dhanushka Ekanayake's user avatar
0 votes
2 answers
274 views

Google Authenticator - What to keep for emergency restore

I started to use Google Authenticator to secure my SSH servers with 2FA. Running $ google-authenticator generates and prints a set of emergency keys beside a secret key and a verification code. Your ...
mahyard's user avatar
  • 103
3 votes
2 answers
18k views

Can I use the Google Authenticator (OTP) app on my PC?

Sometimes it can be a little annoying to check the mobile app to access a regular website. Is it possible to use an OTP authenticator app that can be used on both mobile and PC?
yum's user avatar
  • 31
1 vote
1 answer
1k views

PAM authentication problems

I am trying to set up PAM authentication along side public key authentication in SSH inside of a LXD arch container. when i connect and give the proper code, i get this information in the journal on ...
rayjay's user avatar
  • 11
1 vote
0 answers
190 views

Slackware 15: Google Authenticator configuration issue / Access Denied

I am trying to install Google Authenticator on Slackware 15 and I seem to be stuck. My steps were: Installed google authenticator Added in /etc/pam.d/ssh the following line at the top of the file ...
John J's user avatar
  • 11
1 vote
0 answers
80 views

Google Authenticator infinite loop on bugs.mojang.com

Yesterday I added a comment to a page on https://bugs.mojang.com which required me first to set up 2FA, which was easy because they provided a QR code which I used to add an entry in Google ...
Nathan's user avatar
  • 11
0 votes
1 answer
99 views

How can I enter a Google Authenticator Account/Key combination with a URL?

I need to enter a key into Google Authenticator but my camera on my smart phone is fuzzy so it can't read QR codes !!! I can read the code using other devices. The code evaluates to something like ...
Tyler Durden's user avatar
  • 6,121
1 vote
1 answer
1k views

google-authenticator QR code is clipped at the top in PuTTY

I use PuTTY on Windows to establish an SSH connection to a remote server and am trying to set up google-authenticator two-factor authentication, so I installed it on the remote server and run it to ...
FlexMcMurphy's user avatar
1 vote
1 answer
385 views

What kind of security do authenticator apps use to protect the seed?

I'm not 100% sure if this question is supposed to be here or in Cryptography forum, but I'll try anyway. I would like to have some idea as to how software authenticator apps such as Google ...
Proto Ukr's user avatar
  • 125
0 votes
0 answers
30 views

I am not able to log in to my system

I was using 2-factor authentication (google-authenticator with my password) for logging into my system. I accidentally deleted ".google-authenticator file". Now the tab for "verification code" has ...
Gaurav 's user avatar
0 votes
1 answer
3k views

Apache Guacamole Multi-factor Authentication

I installed Apache Guacamole 1.0.0 on Ubuntu machine. I am able to navigate to login page. I log in using 'guacadmin/guacadmin' credentials. I can get in, but right after i enter my credentials and ...
Sandeep Perera's user avatar
1 vote
0 answers
422 views

Need help getting OTP to work on OpenVPN Ubuntu 18.04

I've searched everywhere and can't find a good answer. Here's my situation: I have Ubuntu 18.04 which comes with OpenVPN. I have a .ovpn file that I will use to connect to the correct server. The ...
Linkfish's user avatar
0 votes
1 answer
217 views

How do I require MFA only when it has been set up?

I'd like to require every user to use MFA with Google Authenticator. Each time I add a new user, I want to allow them to log in using their SSH key only once, and upon login require them to create a ...
Kyle's user avatar
  • 222
0 votes
1 answer
439 views

jump to root (su -) with google authentication for one specific user

in my test servers (with debian or centos) I need to be able to jump from only once user to root with google authentication. to understand the problem, for example on the server I have two users bob ->...
raisam's user avatar
  • 1
1 vote
1 answer
12k views

How to recover QR codes from Google Authenticator?

I have used the smart switch program to backup my Galaxy S5 data. When I recover all the data the Google Authenticator app has lost all my QR codes. Can I still recover the codes?
user avatar
1 vote
1 answer
1k views

FileZilla to SSH into EC2 with Google Authenticator

I have Foogle Authenticator setup on an AWS EC2 instance, so that, when I SSH in with my .pem file, I am prompted for the current security key. I was wondering if it is possible to configure ...
user1709076's user avatar
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40 views

Is this a bug in Dropbox?

I had 2 factor authentication enabled for my Dropbox account using Google Authenticator. I got a new phone and in the Dropbox website, clicked edit 2 factor authentication to bring up a QR code to ...
Celeritas's user avatar
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0 votes
2 answers
2k views

ssh Keyboard Authentication: when to enter Google Authenticator code

These questions seem related: Duo Authentication Interactive Keyboard (No answer.) https://serverfault.com/questions/417209/enabled-password-auth-on-sshd-now-keyboard-interactive-auth-hangs (Bug. My ...
TresPaul's user avatar
  • 173
1 vote
0 answers
157 views

build authenticatoin sever for web. Use OTP

I have a web app. I want to use OTP for it so i build a authentication server. This server use freeradius and google authenticator. I want to ask how to integrate freeradius and google authenticator ...
anle18's user avatar
  • 11
3 votes
2 answers
3k views

oathtool never agrees with Google Authenticator

I use Google Authenticator currently for 2FA, things like connecting to VPN etc. I wanted to see if I could get the six digit code on my OSX box but for some reason oathtool never returns the same ...
jar's user avatar
  • 221
4 votes
1 answer
1k views

How to use OpenVPN GUI for connecting to VPNs with Google Authenticator?

My workplace has a VPN server which requires a Google Auth token to connect. Connecting via console works - I'm asked for the token and the connection goes through smoothly. However connecting via the ...
JonathanReez's user avatar
1 vote
3 answers
8k views

Is it possible to require a TOTP on Windows Login using existing or custom software?

I have always been looking for a way to require a Two-Factor Authentication (One Time) Passcode on my Windows Login. Using an algorithm such as TOTP, this should be easy, and require no internet ...
Sam Weaver's user avatar
2 votes
0 answers
907 views

SSH with two factor authentication

I am trying to use two factor authentication on my server so that when I ssh from my mac terminal it will ask a username and password as well as performing two factor authentication. I checked and ...
Niks's user avatar
  • 811
1 vote
1 answer
251 views

Have to log in to Chrome every time it starts after setting up Google Authenticator [OSX]

A while back, I set up 2FA with Google Authenticator. Now, every time Chrome starts, I need to log in to Chrome again to ensure Chrome sync is running. Is there a way I can trust Chrome to ensure it ...
CourtDemone's user avatar
0 votes
0 answers
3k views

SFTP with Google Authenticator for 2FA

For my servers I'm currently using Google Authenticator for 2-Factor Authentication over SSH and it works as it should. One issue that I have is that trying to connecting to my servers over SFTP using ...
Sven's user avatar
  • 153
11 votes
2 answers
18k views

Can I get Google Authenticator as a stand-alone hardware dongle?

I'm setting up Two-Factor Authentication for our small office that will be used to log in to the corporate web site. The TFA is used via the Google Authenticator app that works great, except for a ...
MikeF's user avatar
  • 578
7 votes
1 answer
14k views

Windows logon using Google Authenticator [closed]

Do you know if there is a free (or even better, open source) implementation of the Windows login screen to use with Google Authenticator or any time based authenticator. It would be a great/cheap way ...
David's user avatar
  • 229
0 votes
1 answer
528 views

Change order of two-factor-authentication

I am testing two-factor-authentication for ssh logins on some CentOS containers in our testing environment. I compiled my own rpms from github's source, installed and configured everything and have ...
Bruno9779's user avatar
  • 1,237
62 votes
5 answers
180k views

Google Authenticator and second device setup

I have two-step verification setup for a Gmail account. Its currently running on an iPhone. I'm trying to setup the same on an iPod while retaining the setup on the iPhone. (I often like to shut off ...
jww's user avatar
  • 12.2k
1 vote
0 answers
3k views

xrdp with two factor authentication (libpam-google-authenticator)

I'm trying to setup a Debian VM that uses two factor authentication for logins via google-authenticator's PAM plugin. The google-authenticator part is working great through regular console logins or ...
acee's user avatar
  • 111
2 votes
1 answer
398 views

Git github not working with google authenticator OSX

So I had git running on my computer just fine. My password was saved with the osxkeychain thingy and everything ran smoothly. Today I decided I should be safe and enable google authenticator 2-step ...
Max Rahm's user avatar
  • 155
0 votes
1 answer
424 views

How does 'Trust this computer' work in Google's 2 step authentication?

I have seen this option 'Trust this computer' feature in Google and some other famous sites. How does this work? What information about my computer is being stored in their server? Or is it based on ...
Ivin's user avatar
  • 125
0 votes
1 answer
235 views

How do I login to applications with a Google account that uses 2-Step Verification?

I need to use my Google account to login to places like Windows Live Writer. Sometimes the second step in the 2-Step Verification process gets in the way, causing a Password and Email combination ...
Jeremy Lin's user avatar
17 votes
3 answers
14k views

Google two factor authentication rejects login from Thunderbird

Since I turned on the two-factor login in googlemail, I cannot login from Thunderbird anymore. (Before it was all fine.) What do I have to change in Thunderbird?
rubo77's user avatar
  • 4,920
168 votes
22 answers
279k views

Is there a Google Authenticator desktop client?

I am using Google Authenticator for 2-step authentication. I like how I can use a code and verify my account using my phone: I realize that the app was designed to run on a device other than a ...
cwd's user avatar
  • 18.2k
4 votes
3 answers
666 views

How does Google two-auth factor work?

I'd like to turn on Google's two authentication factor on but first I'd like to understand how it works. Specifically I'd like to use the Google app for smartphones (btw I checked the FAQ and this is ...
Cedric Martin's user avatar