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Questions tagged [authentication]

Questions about authenticating wireless connections, SSH keys, or passwords in Ubuntu.

791 questions
30
votes
4 answers

Google authenticator for desktop

Is there a desktop application for Google authenticator (an equivalent to the phone app, not the PAM lib)?
raphink
  • 1,100
11
votes
3 answers

"Authentication required. System policy prevents WiFi scans" in FocalFossa

For those of you bothered by the deluge of annoying popups asking to authenticate pretty much every move one makes in Focal Fossa ("System policy prevents this and that" when mucking about in WiFi Settings, "Authentication needed to refresh system…
Aqualung
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9
votes
3 answers

Change default user for authentication

When I attempt to perform certain actions within ubuntu I am asked to authenticate with a root user, but ubuntu doesn't give me options for which root user, it just specifies it as the user that set up my machine. I was wondering how to go about…
aplassard
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9
votes
2 answers

Authentication Required popup `/bin/sh`

My Ubuntu 18.04 opens the modal dialog Authentication Required with the text "Authentication is needed to run '/bin/sh' as super user This happens just after booting - for no reason know to me!
dMatija
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4
votes
2 answers

I cannot install applications because I don't know what to do with the authentication dialog

Whenever I try to download an application, I'm asked for authentication. With what? A password? I tried to use my Ubuntu-One password but that didn't work.
Eric
  • 43
4
votes
1 answer

Ubuntu One Authentication failed

Ubuntu one fails to authenticate from my new Ubuntu 12.04 64 bit installation but I can access my account from a browser. I've tried resetting the password several times and I've also tried reinstalling ubuntu one as per the directions given in the…
pskeshu
  • 343
3
votes
1 answer

NIS client authentication

How to configure the nis client on Ubuntu? And how to configure system authentication? There is no option for system authentication like system setting system info in my system etc. When ever I go to software center and search them nis…
Tarun Gupta
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2
votes
1 answer

How to authenticate a startup disk image?

The process of creating a startup disk on Ubuntu looks really vulny to me. It's scary in a number of ways. Please either (1) refute my assertions with contrary evidence or (2) tell me how to avoid these pitfalls (hopefully without giving up on…
Veiokej
  • 553
2
votes
1 answer

Problems with disappearing authentication window

When I try to use the software center, the authentication windows pops up and disappears after 1 second shaking sideways (like when the password is incorrect) even though I was not able to type anything. I can use synaptic and type my password, but…
laura
  • 21
2
votes
1 answer

Authenticate in ubuntu

I have a administrator privileges in Ubuntu 12.10 but when I try to install some applications Ubuntu requiere authentication, I write my password, but doesn't work somebody could help me?
Byron
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2
votes
1 answer

Fingerprint deletes itself on Dell XPS 13 plus - ubuntu 22.04

My fingerprint firmware is ok since I can enroll new fingerprints: sudo fprintd-enroll Using device /net/reactivated/Fprint/Device/0 Enrolling right-index-finger finger. Enroll result: enroll-stage-passed Enroll result: enroll-retry-scan Enroll…
BraveDistribution
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2
votes
0 answers

Sudo rights without sudo auth

I'm making an Ubuntu x86 Retropie. So far I have been able to figure out how to modify the OS to get all the hardware working but being a Windows admin I'm a little out of my depth on this one. Is there a way to add a user who already has sudo…
LPG
  • 121
1
vote
1 answer

Is it reasonable to put public and private keys under different chapters in “authorized_keys”?

I want to ask as a newbie, is it reasonable by means of Unix architecture to put both public keys and private keys under different chapters in authorized_keys file? I personally put only public keys in /.ssh/authorized_keys, and put every private…
user423047
1
vote
1 answer

Authenticating an app installation in Ubuntu 16.04

I want to install an app within the Ubuntu software center. When I click on the "install" button, I am prompted to authenticate. I use what I think is the correct authentication but Ubuntu won't take it. How do I disable the authentication, or…
txkornblum
  • 11
1
vote
0 answers

15.10 Biometric Auth

I have seen biometric authentication such as Pam-face-authentication and the such, but when I tried to get it to work, it didn't do anything, I realised it was old, does anyone know of a good facial/speech recognition software that I could use?
Chaten
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