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

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5
votes
4answers
567 views

Cannot unlock session if user has no password

I created an account with no password for my 3 year old child. After some time of inactivity on that account, the session locks. Then I cannot unlock the session. Trying to unlock with an empty ...
4
votes
1answer
75 views

How to make GDM have a limit of incorrect password attempts before action is taken?

I am currently running Ubuntu GNOME 15.10 with GNOME 3.18, though I used to (a long while back) run Windows 7, and though Ubuntu is better in most ways, there is still a feature lacking or at least a ...
4
votes
1answer
588 views

Authentication required before suspend

Since the last update of Ubuntu 14.04, when I press the sleep button in my laptop, a pop-up window appears with "Authentication is required for suspending the system". Password is not requested when ...
3
votes
3answers
4k views

remember wireless password in kde

I've got kubuntu 12.04.3 LTS installed. Don't know why - whether it's a default option or I've made this - but KDE always keeps asking me for the wireless connection password and it's annoying a ...
3
votes
2answers
3k views

Password protect files/folders using cli

I have some important documents that I need to protect from anyone else having access to my machine. The problem being the other persons have access to my machine via root account so changing the ...
2
votes
1answer
2k views

password does not work for everything “anymore”!

I did set my password as I installed Ubuntu some months ago, and all is running flawless up to few days ago. Since then, although I did never change my password, the whole authentication is not ...
6
votes
4answers
44k views

Bash - 'if' statement: compare two strings

I would like to make a script that deletes a directory with rmdir after confirming with a password using read to set the variable. So far I have this: #!/bin/bash -x echo "Password:" read -t 30 S1 ...
5
votes
1answer
5k views

How do I enforce a password complexity policy?

I need to configure an Ubuntu server to follow a strict company password policy that specifies the following: at least one upper case at least one lower case at least one digit at least one special ...
5
votes
1answer
6k views

Unable to change user password in Ubuntu 12.10

The User Password is not changing for some reason. In the terminal it says password updated successfully, $ sudo passwd [sudo] password for zaigham: Enter new UNIX password: Retype new UNIX ...
4
votes
2answers
49 views

Passwordless SSH only works when I'm already logged in on SSH

So I set up passwordless ssh using the following: How can I set up password-less SSH login? After setting this up, I'd expect that I wouldn't need a password to ssh. My issue is that on my first ...
4
votes
3answers
5k views

Assign VNC password using script

I am using a script to automatically set up a computer. I need to assign a password to the vnc server for the user, which is normally done using the vncserver command. However, it prompts for the user ...
4
votes
3answers
2k views

My PC does not ask password in Login even if I set it to ASK on login

When I first installed Ubuntu 11.04 I marked NOT to ask password in login. Then, ofcourse, it didn't ask me password on login. But now I want the OS to ask login password as I have many critical datas ...
4
votes
3answers
14k views

Where are passwords stored?

How do you figure out where are user's passwords stored, for users that can login? I know the system is using LDAP for users (username, home path, etc.), but it doesn't contain any kind of passwords. ...
2
votes
1answer
553 views

How to enter password on console with NetworkManager's nmcli

I want to connect to a VPN with nmcli. Is there a way to allow me to provide a password to nmcli from the console? There seem to be ways to store the password in ...
2
votes
1answer
571 views

Remove startup password when default login is command line

When I boot up my computer, it goes straight to the command line. I modified /etc/default/grub file from GRUB_CMDLINE_LINUX_DEFAULT="quiet splash" to quiet splash text. Can someone please explain ...
2
votes
3answers
100 views

Could up-arrow key in terminal is a risk when encrypting using 7z?

We know that 7z can be used as an encryption method and that up-arrow key is used to see what commands and what tasks had done, so it can be use to reveal the password because in this case passwords ...
2
votes
0answers
932 views

I can log in with my password, but it's not accepted as valid for authentication

I can log in with my password just fine, but when trying to use sudo to run commands or authenticating to install software, my password does not work and my account is an administrator account. ...
1
vote
4answers
8k views

ubuntu 13.04 claims my root password wrong

while opening the bleachbit(as root) , gedbi and bootup- manager , it asks for the root password and on entering the password shows that the password is wrong , for other things like updating , ...
1
vote
0answers
3k views

What is default username & password for a persistent pendrive? [duplicate]

Possible Duplicate: Live CD asks for a username and password I am trying out Ubuntu 11.04 on a netbook. I created a live USB to boot from using this: ...
1
vote
2answers
2k views

How to protect hard disk?

I have 320 GB hard disk on my laptop and I have installed Ubuntu 11.04 on 1 partition and another partition is reserved for storage. I want to protect that storage partition with a password. How can I ...
0
votes
1answer
539 views

How to change password complexity requirements in Ubuntu 14.04LTS

I am trying to setup some OLD laptops with Ubuntu 14.04LTS at an elementary school. I would like a simple password for the students to type but the password I am choosing keeps failing password ...
0
votes
3answers
5k views

Is there a way to reset Windows XP administrator password? [closed]

Can I reset a Windows XP administrator password? How would I do it?
11
votes
3answers
8k views

ssh never ask for a password

Somehow my SSH never wants to ask me for a password. So I setup a VPS on some random server somewhere in the world and I want to connect to it with ssh. I can setup a key, but when I do this: ssh ...
9
votes
1answer
319 views

How can I protect my data when lending my computer to someone?

I'm going to lend an old PC with dual boot (Ubuntu and Win XP) to a friend for few days. Ubuntu contains a lot of data that I want to keep confidential. I have protected my session with a strong ...
5
votes
1answer
196 views

password on resume

I would like to not have to enter my password on resume after closing the lid on my laptop. I used to be able to do this but can't find the option anywhere anymore. all the notes I have found say go ...
4
votes
2answers
2k views

How do I approve specific computers to ssh into a machine with password authentication disabled?

The instructions in help.ubuntu.com/community/SSH/OpenSSH/Configuring recommend disabling password authentication so that "it will only be possible to connect from computers you have specifically ...
4
votes
1answer
5k views

Expect script that enters a username and password

I am trying to run an expect script, that everytime the prompt says user@blah's password, it enters the password I have the following expect script but it seem to be acting up. Can anyone tell me ...
3
votes
1answer
632 views

How to enable autologin but still require password

I am running Ubuntu GNOME 14.04, using gdm display manager and gnome-shell environment and I need to achieve the following behaviour: after boot, a selected user is automatically logged in, but a ...
3
votes
1answer
382 views

Google asks me to login every time I reboot

My online account for Google loses the password every time I reboot my machine. I have a two tier log in to my Google account as it is managed by my employer. I am aware that this has been dealt ...
3
votes
1answer
4k views

Ubuntu 14.04 - New User Account

I have a question regarding the creation of a new user on Ubuntu 14.04. When I go to "User Accounts" and click "+" to make a new account, it asks for "Account Type", "Full Name", and "Username". After ...
3
votes
2answers
883 views

Wubi overwrites my Ubuntu username to Administrator and ignores my password

I know there are ways to get your root access back and change your password, but every time I try a new flavor of Ubuntu (installing using Wubi) my username/password is ignored. After installing and ...
3
votes
1answer
395 views

Lock screen turn off and on : Goes to a loop asking to enter password to unlock- then turns off again.

I recently updated my laptop from 12.04 to 12.10. And now, whenever I lock screen with "CTRL+ALT+L", the screen locks, and monitor turns off. But within 30 seconds, it turns on and asks for password. ...
3
votes
1answer
8k views

Terminal problems entering password

Every time I try to enable shell theme extension or anything in general in Terminal it asks me for a password but won't accept it.
3
votes
2answers
1k views

How to change the User password

Alright i go into the terminal and type in sudo passwd random-pass -enter- [sudo] password for user:[] I type whatever password i want in and the insertion point/caret just stays in the same spot. ...
2
votes
1answer
279 views

Hadoop in Ubuntu : Unable to create Passwordless SSH

I am learning Hadoop and trying to create the passwordless SSH following the procedure in define in the Book : Hadoop: The Definitive guide Configuring SSH Pseudodistributed mode is just ...
2
votes
1answer
591 views

Upgrade to 15.04. Now asks for private key password at boot

I just upgraded Ubuntu from 14.10 to 15.04 and when I boot I now get a question before the login screen that asks me for my private key password. I didn't quite now what this password was so I've ...
2
votes
1answer
469 views

Asks password when trying to install Boot-Repair

I'm trying to install Boot-Repair directly from Lubuntu, but after typing the line "sudo add-apt-repository ppa:yannubuntu/boot-repair" in the terminal (as suggested here: ...
2
votes
1answer
184 views

WiFi temporary username settings with PEAP/MSCHAPv2 on 14.04

I am setting up a computer for our grad students at my university. I have one standard-user login for all of them to use to make things a bit simpler for them. I am trying to find a way, however, to ...
2
votes
1answer
51 views

Entries in history

I usually include the password when I log in to MySQL. How do I exclude mysql -u root -pPassword being picked up and stored by history?
2
votes
1answer
2k views

Trying to access Windows 8 computer asks for password 14.04 LTS

I have installed Samba share on Ubuntu 14.04 LTS - I can see my Windows machine via 'Browse Network' but when I double click the icon it asks me to verify my username, workgroup and password. The ...
2
votes
1answer
479 views

Ubuntu 13.04 users switching without password [duplicate]

My wife and I share the same PC, we only use two different users for easier switching between each other's task without interrupting anything. We're not concerned about privacy nor security. Whatever ...
2
votes
2answers
2k views

Unable to log in and unable to reset the password [duplicate]

I was reading some blog and I found that I can manually start GUI by issuing this command sudo startx, so I did that. I did it in the terminal with the GUI already running. Now I'm unable to login to ...
2
votes
2answers
2k views

After upgrading to 12.04 LTS it returns incorrect password

After upgrading my netbook to the current version of 12.04, I am unable to login. When I try it returns incorrect password even though it is the correct password. I have tried to reset the ...
2
votes
3answers
5k views

How move Firefox bookmarks from Windows to Ubuntu 11.10?

How can I move Firefox bookmarks from Windows to Ubuntu? I have Windows XP on one machine (which is very old and runs Firefox 8) and have Ubuntu 11.10 on another. I want to copy Firefox bookmarks to ...
2
votes
2answers
1k views

Adobe Air workaround for Pandora not working

I was trying this symbolic link approach because of the problem described here: http://askubuntu.com/a/120221/70462 After I made the symlink, the installation proceeded further than before, but it ...
1
vote
1answer
185 views

How do disable user list on login screen? (Prompt for username and password) Ubuntu 15.10

I was curious as to if there is a way to disable the user list on the login screen on Ubuntu 15.10, thus making it so that any user would have to enter their username as well as their password to log ...
1
vote
0answers
158 views

create multiple users from csv file and communicate them the password

I have to create multiple users in an Ubuntu environment from a csv file that lists their names and password. I am using the following tutorial Import users from CSV file But I am not been able to ...
1
vote
0answers
74 views

Can't log into my session even in recovery mode

I've recovered my session password in recovery mode (By doing enter recovery mode loadkeys fr mount -o rw,remount / passwd me wrote password in a paper ) But when I restart the computer, entering ...
1
vote
1answer
3k views

`sudo` asks for password even when I have no password set?

I removed the password from my account using the "User Accounts" window and then on running sudo, it prompted me for a password, even when i didn't have one. I tried pressing enter without entering ...
1
vote
1answer
151 views

Remember Ubuntu password but ask for sudo confirmation

When I'm done with making Ubuntu remember my password and do not ask for it before risky actions... Is there a way to get safe pop up confirmation window (without password input, just OK or cancel)? ...