Questions tagged [password]

Passwords are used to check user identity or authenticate, for example log in to a user account, to gain elevated privileges with `sudo` or with encryption. Use this tag when asking about using and managing passwords, and understanding where and when they are needed for system security.

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pam_tally2 is counting successful logins as failures while using Yubikey

I'm using Yubikey's U2F feature as a second factor to login on Ubuntu 20.04 as described here: https://support.yubico.com/support/solutions/articles/15000011356-ubuntu-linux-login-guide-u2f However, ...
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Login Password, Grub Password or Bios Password

I found that Ubuntu login password can be easily reset as mentioned in this article: Reset Your Forgotten Ubuntu Password in 2 Minutes or Less I was wondering if there are alternatives to this. Is ...
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Is it possible to prevent Brave Browser from asking for keyring access?

I recently installed the Brave Browser using the method on their website (I do not believe I used snap; I believe it was via apt). Every time I open it, the browser asks for me to enter my password so ...
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How to fix these two errors that pop up before Ubuntu boots?

Error: can't find command 'hwmatch'. Error: invalid PBKDF2 password. Enter username: Root(E.g) Enter password: Toor Error: access denied Failed to boot both default and fallback entries Press ...
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Why am I prompted for my password every time I access a mounted disk under 20.04?

I have several SSD disks connected on my Ubuntu server, and under 19.10, they were mounted automatically under their respective directories. But under 20.04, every time I want to access one, it asks ...
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29 views

Secure a particular command with Password before executing it

Here I have a question can we secure a "command" with a "PASSWORD" for example lets say if I type pwd command on terminal, Linux should prompt for a password even I am the Admin of the system. ...
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1answer
29 views

After entering the correct login password i am getting enter password screen again

I have dual booted Ubuntu 20.04 on my HP Pavilion g6 Notebook PC. 1st day it worked fine. Today, after giving my login password , the circle beside it rotated once and the same login screen came again....
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50 views

Does Chromium web browser store passwords more securely than Firefox?

As far as I know Chromium uses some keyring, so if you for example make Ubuntu not ask password on login, Chromium will ask you for password when it is launched. Is it different when comparing to ...
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Ubuntu 20.04 LTS disable on boot: unlock keyring for an application who wants to acces “Default Keyring” but is locked

I'm new to Ubuntu (Linux) on desktop, 3 days ago I left Windows 10! How can I disable at boot: unlock keyring for an application who wants to access "Default Keyring" but is locked? I have set auto-...
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1answer
72 views

Ubuntu 20.04 not asking password when coming out of sleep

Ubuntu doesn't ask for my password when I'm getting out of sleep when closing my laptop and reopening it. I've followed everything listed here : Ubuntu 17.04 no longer asking for password when coming ...
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1answer
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Why does Pasting or typing in my password and hitting enter creates newlines instead of submitting password?

I'm working from a windows computer, and the server that I am renting is from digital ocean using Ubuntu. I am trying to create a postgres db dump, and when I am prompted to enter my password I am ...
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How to lock a file for administrator (su/sudo password-protected) access only from command line / terminal?

I have some sensitive files that I want to protect from my own impulsivity. They're in ~ (/home) not /dev or /bin; those files are protected by default. However, like system files in /dev, /bin, or ...
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60 views

How do I get back my ubuntu sudo password not reset it?

I have ubuntu on my windows,and I have set a password for it months before now that's the same password of my phone, But yesterday something wierd happened,my brain updated that password memory and ...
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1answer
71 views

how to protect a folder using password in ubuntu 20.04 [duplicate]

I have tried installing both cryptkeeper and gnome-encfs-manager but it was showing unable to locate the packages. Can anyone please help me in installing any one of them or suggest a new one
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Any way to disable deja-dup periodic “restore check” when password encryption enabled?

If you enable backup password protection using deja-dup backup tool then periodically when you run a backup it prompts you for the password and does some sort of restore check. Does anyone know if it'...
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Login to putty in Ubuntu 18.04 using only user name and password?

Can I use only username and password to login to Ubuntu 18.04 LTS in putty? I thought it should be simple and easy to do so, but I get an error all the time.
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Ubuntu 20.04 After Fingerprint login, password request to unlock the desktop

I have this issue with fingerprint. Almost all works fine, I can use it for elevate privileges, I can login .... but just after passed the login screen, when the desktop appears, I have a pop up ...
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Mount usb disk without password prompt [duplicate]

I am trying to mount disk without getting prompted for password. I tried the guide here https://learnubuntumate.weebly.com/authentication-is-required-to-mount.html but it does not help. Any ...
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1answer
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I think my Ubuntu os was hacked or maybe was just minor complications [closed]

I am new to Ubuntu and am running it's Os on a Virtual Machine (Oracle Virtual box).. I have been running it for 3 days now, with some password issue, which it keeps saying "sorry, try again." after ...
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23 views

Missing saved passwords from chrome via xrdp

I'm connecting to my ubuntu system (fossa) via xrdp from a win 10 laptop and all saved password are missing from chrome settings. When logging in locally all the password are at their place but when ...
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1answer
48 views

how to Setup Grub Password ONLY to access grub menu?

Need help to configure Grub Password only for accessing Grub Menu. I DO NOT want to enter user name and password at the time of each reboot. I've configured Grub User ID and Password by following ...
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Delete users on Ubuntu Core

I created a user on my Ubuntu Core distribution with ssh key and without password. But a few days later, Ubuntu ask me a password to connect (even if I didn't specify a password before). So to ...
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2answers
34 views

Reset password for phpmyadmin on raspberry pi

I’ve got a raspberry pi with a phpmyadmin database. However I can not remember the password. I may not even have a password. I have tried various method of resetting the password but when I try ...
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20 views

Ubuntu 20.04 WiFi Password does not save

sometimes randomly the system asks for wifi password on reboot even if it has been provided and saved in previous sessions. IT just needs to click authenticate in the specific window as the pswd is ...
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19 views

Locked Out :New Computer [duplicate]

I just bought a Dell Latitude laptop Ubuntu Linux 8GE. I had to create a password in order to sign in. ( This my second Dell Latitude with Ubuntu and, on that one there was no sign-on when I went on ...
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1answer
45 views

Disable sudo password and ask yes or no like in Windows

Every time I install new software in Ubuntu Software Center, it asks me for my password. I don't want to disable the authentication because it won't ask me for the password if I click on something ...
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1answer
47 views

Clean Ubuntu Install with Nvidia stuck on login screen, login loop

I'm a new Ubuntu user trying a first install. I've just built a PC and everything went smooth right up until the Ubuntu login screen. I am prompted to type in my password, I do, and nothing happens. ...
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question on password security - resetting admin password with grub menu root shell prompt

I recently forgot my admin account password on my laptop. I managed to enter the grub menu at boot, getting on to root shell (recovery mode --> drop into root shell prompt). From there all I had to do ...
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1answer
74 views

Login failure after 20.04 update

I had a problem logging on after an update of 20.04 I had Auto-Login enabled The Login screen would not let me logon to the desktop. I was in an endless loop. I searched Askubuntu everywhere. ...
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21 views

Can't login to Admin account as have forgotten password, can't get onto Grub to reset [duplicate]

I am using Kubuntu operating system, and on my computer I have a Admin account and my working account. I have forgotten the Admin password, cannot log into that account or authenticate for updates ...
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53 views

Ubuntu doesn't recognize my user user/sudo password anymore, and I can't use sudo

I was trying to use sudo to run the command sudo apt-get install libsdl2-dev when I realized that Ubuntu didn't recognize my password anymore. There is no way that I could have been typing it wrong, ...
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20 views

How to remove disk sda3_crypt password from ubuntu 18.04?

I somehow activated disk sda3_crypt password long back which shows at the very beginning other than the administrator password and now, I'm not being able to remove it. Any help ?
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How to require a password when modifying system settings control panels in Ubuntu 18.04?

I notice that I can make whatever changes that I want in the GUI Network control panel (and others) in Ubuntu 18.04 without first needing to supply an administrator password.  Why is that?  ...
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20 views

Hydra doesn't return any password

I am trying to generate passwords for user Alice using hydra with the command line shown below hydra -l Alice -P flowers.txt -t 16 192.168.56.2 ftp. However, no password is returned, and the ...
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22 views

Getting chage: /etc/passwd.23621: Permission denied chage: cannot lock /etc/passwd; try again later

I am trying install packages on Ubuntu 16.04, like chrony and I'm getting a permission denied error message. Regression I'm running as root and also able to add a user manually. I checked that the ...
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Imager Ubuntu Core 18 Pi4 (arm64) password is not working

Just tried to install ubuntu server using Imager to flash the SD card for my Pi4. I'm selecting the "Ubuntu Core 18 Pi3/4" 64bit image, flashing works perfect. Following the guide, I'm trying to SSH ...
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1answer
42 views

Kubuntu login screen issue

i am sorry if i in wrong place to ask,and to share my problem and what i found,but i hope you give me the answers what i look. Well the situation - have installed Kubuntu to my client,and he was ...
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1answer
24 views

how to insert variables in command line?

I have the need to be able to enter or insert data in 3 input in the command console but in an automatic way. The first input is the one that is manifested when executing the sudo command where it ...
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I installed ubuntu with crouton on my chromebook and didnt set a password now its asking for my password

As the title says my chromebook shut off while I was cleaning and it asked for a password I dont have when I turned it back on when it asked for a password in crouton i just spammed enter key because ...
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2answers
39 views

Ubuntu Studio LVM password entry box missing

I've just installed Ubuntu Studio 20.04. I configured it to create an encrypted LVM. When I start up (I have "quiet splash" in my /etc/default/grub) the splash screen pops up and asks me for the LUKS ...
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40 views

Always asks for login and password when starting Ubuntu

When I start Ubuntu 18.04 it always asks for a login username and password. Ubuntu asks for a login username here: Ubuntu asks for a password here: I tried to resolve it by automatic login on but ...
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4answers
5k views

Ubuntu 20.04 - Can’t login after upgrade

I installed 20.04 (upgraded from 18.04) and cannot login at all. I’ve tried changing my password using recovery mode, installing lightdm, and using Ctrl-Alt-F3. Strangely, when using Ctrl-Alt-F3, I ...
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10 views

No chance to log in to snap

No chance to log into snap. I loged in to Ubuntu one, changed the password over and over again, even deleted the account and startet from scratch. No chance to log in to snap. Password is not ...
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2answers
190 views

How to get access to Terminal and Password [duplicate]

I need to access to Terminal. Simply clicking on the icon on the desktop does not work. Ctrl+ALT+F2 works. It asks for login and password. Login is OK. Password, the system seems not to receive my ...
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1answer
51 views

My user was deleted from sudo group

I think I made a big mistake. I did usermod -aG docker $USER to run docker without sudo. After run above command, my account status like below joont@joont-ununtu:~$ id uid=1000(joont) gid=1000(...
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1answer
29 views

Trying to create a .dekstop file for an .sh

I'm trying to create a .desktop file that runs an sh file that reboots my system in Windows 10. It goes like this: [Desktop Entry] Name=Windows 10 Comment=Windows 10 Keywords=w10,windows Exec=sh /...
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25 views

At login screen, a progress bar logs me in without asking for password

first time here for asking a question :) Everything is in the title : the issue happens when I'm at the login screen after booting my laptop, at the screen where I have to choose the account I want ...
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22 views

Forgot Ubuntu 15.04 username and password on Lenovo 15.04 [duplicate]

I'm a complete rookie and Ive been given a Lenovo x201 that has Ubuntu 15.04 installed. The person who gave me the laptop does not remember their username or password. I'm stuck in guest mode. I've ...
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13 views

What is the correct way to allow accounts without passwords to chsh?

I hope I have phrased this question correctly, it's a bit of an odd one. I have an Ubuntu 18.04 host with many users on it. All of the users log into their account on the host via SSH public key. All ...
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31 views

Ubuntu 18.04 phpmyadmin refresh error

I installed phpmyadmin on ubuntu 18.04, I enter my username and password correctly, but the page is refreshed and there is no error. token id is generated. (http://my-ip/phpmyadmin/index.php?lang=tr&...

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