Questions regarding passwords and the use of them. Where and when it is needed for system security.

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6
votes
2answers
3k views

How to get GUI sudo password prompt without command line?

Currently, for all my commands that require root access, I have to type them out on a command line. I would like for the GUI to prompt me to key in my password, when sudo is required, instead of ...
0
votes
1answer
44 views

Prevent root from resetting a specific user password

Is there any way to prevent others including root account from resetting a user password? I'd like to protect my user account not to be logged in by others so that others can't see the mounted ...
1
vote
2answers
191 views

Sudo is not asking for password on Ubuntu 16.04

Ever since I update to 16.04 I notice whenever I use any sudo command the terminal does not ask me the password before executing the command,The command is directly executed.I am the admin and I have ...
0
votes
0answers
52 views

Ubuntu 16.04 - Trying to disable home folder encryption

I am trying to disable the home folder encryption on my Ubuntu 16.04. I followed this tutorial, but unfortunately something went wrong: http://www.howtogeek.com/116179/how-to-disable-home-folder-...
1
vote
1answer
753 views

What is the default password in BTsync?

I set up the BTsync by downloading the package from their homepage and running $HOME/.bsync from the extracted package. Then, it says go to http://localhost:8888 where I get: Ubuntu 14.04 LTS ...
16
votes
5answers
42k views

Find the password for the currently connected wireless network

I want to find the password for the wireless network that I am currently connected to (and I entered the password when connecting to the network). How can I do this in Ubuntu?
2
votes
2answers
192 views

Can't log in: Upgraded to Ubuntu 16.04 invalidated my public ssh-keys, changed to PasswordAuthentication no and now I can't get back in

I upgraded my remote server to Ubuntu 16.04 (from 14.10). Then I reconfigured it to only use keys and not passwords. Did that by editing the /etc/ssh/sshd_config file where I changed to the following:...
0
votes
0answers
29 views

Repeated prompt for wifi password without connection

My (old) laptop keeps prompting me for a password to my wifi. It does this repeatedly and does not connect even if I am sure the password is correct. I would like to state that I have no idea what I ...
1
vote
0answers
44 views

Ubuntu 16.04 login problem [duplicate]

I have problems with the startup from a USB flash. It asks for a login and a password and I don't know the login or password can anyone help? It writes ubuntu 16.04 LTS ubuntu tty1 in a prompt.
1
vote
0answers
30 views

Programs that require su permission dont work unless ran as sudo

I'm running Ubuntu MATE 16.04 with openbox as my DE. The programs that require the sudo password get weird errors when i try to run the action that needs it. For instance if i try to install a program ...
1
vote
4answers
29k views

How to decode the hash password in ./etc/shadow

I don't know much of Ubuntu, but is ubuntu able to decode these sort of things? Or do I need to install some program? If I don't, how do I use Ubuntu to read the file? Thanks in advance!
1
vote
0answers
31 views

What is the preferred way to store secret data on Ubuntu touch?

I am developing an Ubuntu Touch app which shall connect with an e-mail server. However, I do not know how to store the password so that it is safe, for example from abuse by people buying used phones ...
0
votes
0answers
37 views

Password Changes with Ansible (User Accounts)

I am having trouble changing passwords with Ansible. It might be my playbook. I need to change this password for specific users. The ssh-keys are the same in the authorized keys section. Not sure ...
0
votes
0answers
36 views

Reason why I am unable to login to ubuntu every time I upgrade the kernel

I am using xubuntu 16.04. Whenever any new kernel is available I upgrade my system using the command: apt upgrade But then when I reboot the system always shows authentication error after I type ...
0
votes
1answer
29 views

Why doesn't Ubuntu/Thunderbird save my PGP key?

I installed Thunderbird and followed the instructions from: https://help.ubuntu.com/community/GnuPrivacyGuardHowto to set up PGP. First it worked, but after restarting my system the next day, I wasn'...
0
votes
1answer
40 views

Forgotten password on compressed file

Two years ago, I did some data recovery for a client, and created a 7z compressed file with a password on the file. I have since forgotten the password i put on the file, the original hard drives are ...
0
votes
2answers
114 views

secure erase returns input/output error

I've already given a detailed description of my predicament in my previous question. Now I've got this: sudo hdparm --user-master u --security-erase my_password /dev/sda returns: ...
1
vote
1answer
36 views

16.04: editing /etc/sudoers to allow NetMan restart w/o password

I want to be able to restart Network Manager without having to enter my password every time. I did sudo visudo and added this line: %sudo ALL=(ALL) NOPASSWD: /bin/systemctl restart network-manager....
1
vote
0answers
25 views

Disable numlock warning on lock screen for notebook

I own a notebook with separate number pad on the keyboard and running 16.04. On the login screen/lock screen, I see a grey warning triangle in the password input field telling me that NUM-Lock is on. ...
1
vote
1answer
39 views

MySQL does not accept password not lets me reset password by skip-grants-table, unable to login

I terminal I have typed: apt install mysql-server mysql-client It asked me for password and I gave it. Next I typed: mysql_secure_installation It prompted me for password. I am cent percent ...
0
votes
1answer
52 views

sudo problem. I can't write my password to terminal

so I was installing python on my laptop :~/Desktop/Python-3.5.1$ su root Password: ssu: Authentication failure` It didn't let me wrote my password. so I looked help and found that: gksu ...
0
votes
0answers
17 views

Unable to login using password on Ubuntu 16.04 [duplicate]

I selected the option of logging in to my user account (with administrator privileges) without a password. Now that I want to revert to logging in using a password, I am unable to do so. I have set a ...
0
votes
0answers
39 views

Recovery password does work

Previous version of Ubuntu was using a 6 letter password. When I downloaded 14.04, the original password says "failed to start session." When I go through reset process and use at least 8 characters ...
0
votes
0answers
78 views

Ubuntu changed my passwords (login & KWallet) itself

Today I was unable to log in to my Ubuntu: password was changed itself (!). Yesterday (7 Feb 16) all worked OK, last password change was 20 Feb 15. I am the only user of PC and reseted the password ...
0
votes
2answers
39 views

over-coming interactive command in a script [closed]

I'm trying to have a script to create containers on proxmox, & I want user to enter his password before proceeding to the creation of container, so I can push it to the main command. the command ...
0
votes
0answers
12 views

Ubuntu 3.5.0-45-generic Password forgotten on during bootup how to reset at GUI or Recovery [duplicate]

My laptop x86 ASUS K60I has Ubuntu with kernel 3.5.0-45-generic (I forgot the version) showing up on the screen. GRUB shows these entries: Ubuntu, with Linux 3.5.0-45-generic Ubuntu, with Linux 3.50-...
3
votes
0answers
36 views

frequent rejection of password Ubuntu 16.04 --no pattern

Several days ago my password started to be rejected frequently. I had to type my password 2 or 3 times for sudo commands and sometimes open a new terminal before the password was accepted. ...
1
vote
0answers
52 views

chrome shows passwords regardless of keyring locked or unlocked

My concern is that chrome shows the saved passwords in chrome://settings/passwords regardless whether i have locked or unlocked the login keyring. i also tried to change my login keyring to something ...
5
votes
1answer
2k views

Broken gnome-keyring file and google-chrome hangs

After few weeks of uptime yesterday I rebooted my laptop. After that, I discovered that there is no password in gnome-keyring. gnome-keyring segfault and didn't work. I restored ~/.gnome2/keyrings/...
32
votes
3answers
41k views

Disable root account in Ubuntu?

I was asked for root credentials to setup my printer in Ubuntu. This seemed to be caused by a bug. And the suggested workaround is to create a root password. Since it is default that no root password ...
0
votes
2answers
2k views

Ubuntu won't accept password

I have a notebook with Ubuntu 14.04 installed... My user is set to auto login, but everytime I need to input the password (for installing applications for example), it won't accept the actual password....
2
votes
0answers
35 views

Lost Password in Ubuntu 16.04 [duplicate]

I installed Ubuntu 16.04, encrypted home directory. Jotted down system info including password, etc., in a document which will presumably be in /home/mike/somewhere. Hadn't printed the file to ...
5
votes
4answers
14k views

Installed perfectly but password not working for login or authentication

I installed Ubuntu on an old XP machine (replaced XP with Ubuntu) and it seemed like it went well... Until I tried to download and install the suggested updates! The password I set during ...
0
votes
0answers
39 views

NetworkManager, unknown authentication passwords, and XScreenSaver 5.15

I used to use a laptop running Xubuntu, but then got a new one. It's been a year or so since I booted it back up and this is what I noticed. It's been so long I cant remember what it is so I tried ...
2
votes
2answers
153 views

How to use ubuntu live disk to reset windows 10 password?

I need to reset the password of windows 10 for my little brother. There is a similar post on here on resetting vista password with chntpw. I followed the steps but it doesn't help. Anyone know how to ...
1
vote
2answers
37 views

Password sign-in blocked by installed software

Yesterday I installed Gnome-do and today it is completely blocking my password sign-in form. Which of course means I can't do anything at all. I know this is my own fault, and yes I'm a dumb noob, but ...
1
vote
1answer
357 views

Evolution keeps asking me for password authentication (gnome shell)

Every time I open my dash, I see the dash display as normal. But once I type into the dash search bar, I receive a request for password authentication for evolution. This is incredibly frustrating! ...
1
vote
0answers
15 views

passwd : Authentication token manipulation error (Different than other questions)

I'm trying to change password with single command. The command is, echo -e "current_password\nnew_password\nnew_password" | passwd Here's the Output of the command... Changing password for adarsh. (...
0
votes
0answers
40 views

Trouble Resetting Mysql root password

Fresh install of Mariadb. I tried following the instructions here to reset the root passwordCannot Log in to the MySQL Server. When got to sudo /usr/sbin/mysqld --skip-grant-tables --skip-networking &...
0
votes
0answers
64 views

How to Reset Root password without login? (I know current Root password)

I want to change the root password of my Ubuntu Server without logging in. I know the current root password. I've tried ssh root@SERVER_IP echo "currentpassword|newpass|newpassagain" but it's not ...
0
votes
2answers
35 views

Sign-in to Change old password

I have not used ubuntu before and installed it on an old pc. Due to a few personal problems it has remained unused for several months. I returned to it today and do not remember the sign-in password. (...
0
votes
0answers
25 views

Wine keeps asking for password then program freezes

I am trying to open a two way radio software program which works fine on Windows but I want it to work on this laptop using Ubuntu 14.04. Each time I click on the the exec of the program, Wine prompts ...
0
votes
1answer
36 views

Password in the terminal

I am new to Ubuntu (trying to get away from the clutches of Microsoft). I downloaded Ubuntu 14, then upgraded to Ubuntu 16. Now I am trying to understand the command line, and every time I try to do ...
0
votes
0answers
35 views

16.04 standard user password fails login, using timekpr

I have struggled with this all day. I installed Ubuntu 16.04 on Lenovo Yoga II and all went well. I installed myself as admin. then, I looked for parental controls and found timekpr, so I installed ...
0
votes
1answer
87 views

Provide password to `nmcli con up` in terminal 14.04

I am trying to connect to my VPN using terminal. My VPN password is a TOTP, so cannot save it to the connection conf file. When I try to connect, a dialog appear to enter password. I want to do it in ...
1
vote
1answer
4k views

Google Chromium asks for keyring to unlock 14.04, but I don't want the password to be the same as my ubuntu login [duplicate]

I don't want this prompt to use my default ubuntu login, I would like this to match the password I would use either on a chromebook, mac, or windows. In other words, similar behavior to the other ...
0
votes
1answer
25 views

Running two scripts on profile login (bash & sudo bash)

I have two scripts which I would like to be run when I log into my profile. ~/.scripts/startup/user-sensei-raw-startup.sh: ids=$(xinput list | awk '/SteelSeries Sensei Raw Gaming Mouse .*pointer/ {...
0
votes
0answers
33 views

terminal not proceeding after I enter my password in ubuntu

I copy pasted this terminal: wget -q "http://deb.playonlinux.com/public.gpg" -O- | sudo apt-key add At which, it asks for my password. The cursor moves to the next line and then nothing happens ...
-2
votes
1answer
31 views

Creating long root passwords

Lets say I have root password somepass. Is there a way to create a script that changes my password to a string consisting of the original password concatenated with itself n times ? I.e., if n=3, the ...
39
votes
12answers
21k views

Password Management Applications?

I have some passwords that are long, complicated and hard to remember. I would like to use a password-manager application to save all of my passwords instead of saving them using a text editor. ...