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

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8
votes
2answers
94 views

Is the lock screen secure?

I have a fully encrypted drive so I know when my laptop is turned off that nobody can access my data but what about when the screen is locked with my root password? It is often impractical to turn ...
0
votes
1answer
33 views

Ubuntu 14 installing phpmyadmin newbie question

Okay did a search first, and a whole bunch of folks are having problems with this one however my problem seems to be reasonably unique ... i.e. am doing something obviously wrong. Am getting the ...
0
votes
1answer
60 views

I have lost or forgotten my authentication password to my ubunutu 12.04 installed PC

I have lost or forgotten my authentication password to my Ubuntu 12.04 installed PC. I have followed the sudo passwd root command and punched in the new password. It gives me a message Authentication ...
8
votes
1answer
340 views

How to prevent users from changing their password to one of the last X passwords?

I have an Ubuntu GNOME 15.10 with GNOME 3.18 system which I would like to set up so that the users using it cannot set a new password as one of the previous X passwords, how can this be achieved? ...
0
votes
2answers
30 views

Why do all my accounts (on my computer) passwords look the same?

Why do all my accounts (on my computer) passwords look the same? You can see it here (I had to post on imgur because I couldn't post the 4 pictures here). The passwords all look the same but are they ...
0
votes
1answer
39 views

Password protection for command-line suspension

I found out how to suspend via command line, namely by sudo pm-suspend. What I miss there is that when the machine wakes back up, the sessions (all of them running in different tty's) are not ...
0
votes
1answer
64 views

I forgot my Ubuntu user password [duplicate]

I have only one user and my grub boot menu also won't load so I don't know any other way to change password
0
votes
0answers
32 views

Ubuntu log in with pendrive instead of user and passwod

I would like to login to my computer without writing my password nor username, but only sometimes. The thing is I would like to configure my notebook to start up at certain hour and start at once all ...
1
vote
0answers
46 views

My Ubuntu 14.04 does not accept one of the user account password, even in terminal, graphic mode or GRUB. How to fix it?

Lets me explain more, the password changing works well, like sudo passwd username when the message says successful, but after that, the user account continue without any password. I have others users ...
1
vote
0answers
121 views

Automatically connect an Openconnect VPN connection

I installed the network-manager-openconnect package and uses it to login to my Openconnect VPN server. The connection works, except that every time I start the connection a two step dialog box pops up ...
2
votes
1answer
33 views

Make locally compiled programs request password graphically

I have an application that I downloaded from my class' website for our custom avr robot and it requires root privileges to send our binaries to the robot via usb. When I try to use it with sudo, the ...
0
votes
2answers
71 views

Locked out, but correct password

I started up this morning, only to find my password is not working and I am locked out. When I enter the correct password, or when I try to login as a guest, the screen resets and goes back to the ...
5
votes
2answers
159 views

Can someone determine my previous sudo password was if they have access to my machine and my new one?

I have found a bug and the developers to whom I reported this bug to want me to send them the VM with the bug. They want me to send them the password and the VM in its current state (a snapshot). I ...
0
votes
0answers
46 views

Password not working on “Switch User” only

I have Ubuntu 15.10 x64, which was upgraded in a long series of upgrades going back to 9.04. Over time, many things (including most of the hardware by now) have changed. What has not changed, however (...
1
vote
2answers
156 views

Can't save changes

I'm brand new to Ubuntu. I downloaded with Wubi and 13.04 shares my computer with Windows 7, (which hopefully will be deleted soon. Goodbye, Bill). First, can I toggle back and forth between Win7 and ...
0
votes
0answers
42 views

Ubuntu 14.04 Login loop (variation)

Today I decided to install Ubuntu 14.04 LTS on my Windows 10 hosted Virtualbox. I installed some things, restarded the VM and got a login loop. It seems that the login loop in 14.04 is not a new ...
1
vote
1answer
61 views

sudo passwd command with no-interactive mode

Context: I created a Virtual Machine with Packer for Vagrant system into a Ubuntu 14.04 server OS. All runs perfectly but this is a development VM (I'm alone on this) and I want to administer my ...
0
votes
1answer
34 views

How to deal with forgotten password without loosing any data from ubuntu based laptop? [duplicate]

When I logged in today on my laptop and tried to do something it asked me for my password. So i typed in my password and it keeps on saying that It's invalid. I know for sure I didn't change it. Is ...
0
votes
0answers
41 views

SeaHorse default uncheck “Automatically unlock this keyring whenever I'm logged in”

This is a little contrary to what many forum questions ask, but in my case I'm trying to get Sea Horse (the password manager) to default uncheck "Automatically unlock this keyring whenever I'm logged ...
0
votes
0answers
34 views

Where is a passphrase stored when I request “Remember until I logout”?

When you (with Nautilus or Nemo) access a resource that requires a passphrase you are presented with a dialogue that gives you the choices to forget password immediately remember password until you ...
0
votes
0answers
20 views

want to change password on ubuntu entirely in a single line with no prompt

echo somepassword | passwd --stdin someaccount does not work. Why not? I don't care that it appears in the process table for an instant or is recorded by process accounting.
1
vote
2answers
90 views

after installing Ubuntu unable to access as keyboard shift key not working so unable to enter pw

I have just done a fresh install of Ubuntu onto the internal hard drive of my laptop. During the process of installing Ubuntu, I clicked the option to encrypt drive, and entered the same password I ...
1
vote
0answers
9 views

Please Help! Can't log into root Ubuntu 14.04 LTS [duplicate]

I am hoping someone can help me out here. For some reason my system has stopped letting me sudo. I can log into the machine just fine. When I attempt to install a package or sudo -i, I get asked ...
-1
votes
2answers
71 views

What is the name for root user?

Here is the scenario: Installing Ubuntu and when asked for root password, just left empty. Only entering the password for the normal user. Now, I want to connect to such OS remotely. I'm using ...
0
votes
1answer
35 views

How do I set a login password in Lubuntu

I thought this would be a common question but after searching for answers I couldn't find anything that addresses this exact problem. Anyway, I have an administrative password, so every time I want ...
3
votes
0answers
56 views

Cron using a command that asks for password

I was able to fix this by using the encfs -S option, this pulls the password from a file instead of prompting for the password every time the script is run. This is not very secure as the password is ...
1
vote
0answers
69 views

How can I limit user login to a certain number of password attempts? Ubuntu 15.10

So basically I want to be able to set it to time out after a certain number of password guesses. If this is possible, would this apply to sudo command attempts as well?
1
vote
3answers
94 views

How to prevent scripts/commands hijacking your session's cached sudo ability?

If I run a sudo command it will ask me for a password, however in that Terminal session for the next few minutes it will allow me to run sudo commands without asking me for a password as it will cache ...
7
votes
2answers
2k views

Make the root the only one able to change the passwords of all other users

For security purpose, I want only the root to change passwords for all the other users. This will be achieved if I set /usr/bin/passwd to 700. Now, if password ageing is enabled or first login is ...
0
votes
0answers
74 views

Unable to login to ubuntu 14.04

I have downloaded ubuntu 14.04 iso 32bit from ubuntu. I have made it to be bootable from USB. I have successfully[I guess] installed. Then it asked me my password. I have given the password which I ...
1
vote
0answers
37 views

Cifs Share keeps asking for password and is slow

I followed the directions here https://wiki.ubuntu.com/MountWindowsSharesPermanently to mount a windows share and it works as expected. Some issues that I am having is one it is very slow when I load ...
1
vote
2answers
93 views

Where can I find my saved wifi passwords on 14.04?

Not trying to accomplish anything nefarious, just wanted to connect my tablet to my girlfriend's home network. My laptop already has it saved (connects automatically), but I've forgotten what it was ...
0
votes
2answers
120 views

how to turn off password-less login for ssh?

I had setup password-less SSH login from my desktop to my laptop following the steps here. Now I want to turn off the password-less login so that when I ssh from my desktop to my laptop, it will ask ...
0
votes
0answers
19 views

WiFi Connection WAS automatic. It isn't now

I have Ubuntu 14.04 LTS and have been using it for a couple of months. Where I live, I use an institutional WiFi (eduroam, WPA/PEAP/Version 0/MSCHAPv2). For these past couple of months, I have had no ...
0
votes
0answers
21 views

How do I recover my Ubuntu password after changing my email address?

I lost my Ubuntu password. I have also changed my email address, so you can't send me anything to my old address. I can give you my old email address. How can I recover my Ubuntu password now? Thanks.
0
votes
0answers
65 views

Ubuntu Personal File Sharing: Wrong Username Password

I have a problem about personal file sharing system. First, I've created a folder on my home directory and I've shared this. But when I connect to this folder with my Android file manager, it's ...
0
votes
1answer
44 views

How to reset password Ubuntu from command prompt? [duplicate]

I want to update my system through this command: sudo apt-get update [sudo] password for jsr: But when I enter it, my system asks for password, but I don't remember it. How can I reset it?
0
votes
0answers
438 views

Reset Password in Windows 10 using chntpw and Ubuntu Live CD/DVD

I'm investigating about how to reset a Windows password. I found that if I use a Ubuntu CD/DVD I can install chntpw and then clear password from the SAM. This works for Windows 7 so my question is: ...
3
votes
0answers
177 views

Extract a rar file with a password that contains special characters

How can I extract a rar file with a password that contains special characters like ', ", `, /, \, ^, (space), !, ?, {, }, [, ], $, &, %, *, ~, :, ,, <, >, etc. Here is an example of PASSWORD ...
0
votes
0answers
130 views

What is the default username/password in Ubuntu 15.10 (For developer Edition x64)?

I downloaded Ubuntu 15.10 x64 (filename: ubuntu-15.10-desktop-amd64.iso). I want to try it out, so I write it to my USB flash drive using Rufus-2.7 on Windows 7. (During the process of writing, Rufus ...
0
votes
1answer
40 views

Find out which program requested authentication

I get password prompts like the one below every now and then. Usually they say: Authentication is required to change your own user data But I have not requested to do so. This often happens ...
0
votes
0answers
44 views

How can I set passwords over 8 characters in vncserver?

I was trying to set-up tightvncserver, but when I went to set the password to a basic 16 Digit string, vncserver responded with this: $ vncserver You will require a password to access your desktops....
1
vote
1answer
143 views

Can't reset or recover password in Ubuntu 15.10

I've tried everything listed in the "How do I reset a lost administrative password" thread and still have had no success. Are there any other techniques to try with Ubuntu 15.10? I've put the Ubuntu ...
0
votes
1answer
29 views

connect / ssh as root using a script without everytime typing the password

Is there any way to connect or ssh using a script without everytime entering the password from my machine. I tried ssh key-gen available here , it is working but when I want to run something as ...
0
votes
0answers
139 views

Store git credentials permanently and encrypted using a keystore in Ubuntu

Storing git credentials with the command: git config credential.helper store stores them unencrypted in a plain text under ~/.git-credentials. In MacOS and Windows, GitHub Help suggests to use ...
0
votes
1answer
46 views

Script: Invalid username and permissions denied

I am trying to write a script that creates multiple users from a text file and then add them to the group I created called "interns". I want to set a default password of "AIST2330PASSWORD" and then ...
0
votes
0answers
19 views

use a different password for the prompts

I installed Ubuntu for the first time since 2006, its awesome. So i installed and went for the encrypted home dir install, just for fun. Now every time i need to do something that requires sudo I am ...
0
votes
0answers
72 views

How to hide “Show password” in Network Manager?

I have a problem with the "show Password" checkbox. I'm trying to help a social school. The thing is that the "Wi-Fi Network Authentication Required" popup shows up some times. what is not a ...
2
votes
0answers
51 views

OpenSSH asks for root@hostname password instead of user@hostname password

So I have this other desktop PC, that serves as my server, primesystem and a laptop as my client, zerosystem that is connected to it. They both serve as my ssh-server and ssh-client respectively, and ...
0
votes
1answer
80 views

Browser asks for password several times .htaccess using subdomain

I have a private homepage and I want to password-protect it using .htaccess. This is what my .htaccess file looks like: AuthName MySite AuthType Basic AuthUserFile /what/ever/.htpasswd require valid-...