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

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5
votes
1answer
6k 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
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
15k 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
2answers
681 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 /etc/NetworkManager/system-...
2
votes
3answers
104 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
966 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: http://www.pendrivelinux.com/universal-...
0
votes
1answer
661 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
6k 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
9k 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
324 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
210 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
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 ...
4
votes
3answers
5k views

why doesnt ubuntu 13.04 prompt me for a password after suspend?

I am on 13.04 and waking from suspend takes me straight to desktop without a password prompt even though it is set to ask for a password in the brightness and lock settings. Also I recently tried to ...
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 ...
3
votes
1answer
722 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
2answers
1k 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
5k 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 ...
2
votes
1answer
317 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
603 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: https://help.ubuntu.com/...
2
votes
1answer
480 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
1answer
197 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
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
1answer
696 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 ...
1
vote
0answers
88 views

User account password removed but terminal still asking for password [duplicate]

Possible Duplicate: Authenticate user that has no password? I'm new to Ubuntu. I recently installed 11.10 and removed the user account password. However, now when I try to do anything in ...
1
vote
1answer
412 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
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
120 views

How to make Ubuntu Server 12 read keyboard input by the password line on login?

I have recently installed Ubuntu Server on my machine - successfully. However, the system does not read my keyboard input on the password on login. Is there something I did not do right? How do I go ...
1
vote
2answers
2k views

sudo doesn't ask for password anymore

I did not notice it but it has been quite a while since I entered the password for using sudo priviledges. Here is my /etc/sudoers file: # # This file MUST be edited with the 'visudo' command as ...
1
vote
4answers
8k views

Broke my sudoers password, how do I reset it without using sudo? [duplicate]

I thought it would be a good idea to finally take the password off my little netbook since it has never actually been of any use, and has mostly just slowed down . But when I went to change my ...
1
vote
1answer
384 views

Saving Keyring Password

I have found the answer to this but I'm posting it here in case others have the same issue and also asking if anyone has any more details ;-) I use Firefox and Thundirbird's "Gnome Keyring Password ...
1
vote
0answers
84 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
2answers
167 views

How do I prevent others from resetting my admin password in (X)ubuntu 14.04?

I was shocked to discover that my password could be easily reset via the command line. Does that mean anybody with physical access to my machine could reset the password and read the encrypted ...
1
vote
2answers
174 views

User account doesn't display anything except background and cursor

I did something in CompizConfig Manager and the launcher and other bars was gone! I tried using the set background from right click menu and checked if it was a driver problem, but it was not. I ...
1
vote
0answers
196 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 ...
0
votes
2answers
112 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: ...
0
votes
1answer
436 views

Stuck in a user log-in loop on startup (fresh install)

So I wanted to set up my Lenovo Flex 2-15D to dual-boot Ubuntu alongside the pre-installed Windows 8.1. I installed the Universal USB Installer from pendrivelinux.com, created a USB stick loaded with ...
0
votes
1answer
608 views

14.04: No Auto login at User Account settings - I am administrator

This is what my picture would look like if I was allowed to post pictures... Account Type Administrator Language English (New Zealand) Login Options [blank] Password **** Last ...
0
votes
1answer
241 views

What is the default password for the `tomcat7` user on my system?

I'm on Ubuntu 14.04 and I installed Apache Tomcat 7 via sudo apt-get install tomcat7 and without editing any configuration I can start and stop the service tomcat7 successfully (localhost:8080 ...
0
votes
1answer
1k views

How can I find my password?

So I installed xubuntu on a netbook with windows 7 already on it. Install seemed to go fine, boot works fine with proper dual boot options; but at the login screen, options are the same main account ...
0
votes
1answer
26 views

Correct password cannot be authenticated to run Synaptic Package Manager GUI [duplicate]

I cannot access my synaptic package manager(in GUI) due to authentication error. Even though I enter the correct user password, it always say that "Your authentication attempt was unsuccessful. Please ...
0
votes
1answer
138 views

Ubuntu 14.0.4 freezing [duplicate]

I've just installed 14.0.4 and it freezes if left for any amount of time (more than a few minutes) The mouse moves, but any input on the keyboard isn't shown on screen (password lock screen) The ...
0
votes
0answers
162 views

Problem installing Ubuntu 14.04.3 on a 64GB flash drive-won't boot properly

I have thrice tried unsuccessfully to install Ubuntu 14.04.3 on a 64GB flash drive in the "use entire drive" mode. I set it for automatic logon during the install and gave it a password. When I try to ...
0
votes
0answers
44 views

Maintenance Password [duplicate]

I just downloaded Ubuntu 13.10 onto an older XPS 420 Dell 32 bit. I did the single boot. When it downloaded, for some reason it kept the original user name as well as the computer name. Now I can't ...
0
votes
1answer
609 views

Is there a way to never have to put in your password after you have logged in? [duplicate]

Possible Duplicate: How to make Ubuntu remember forever the password after the first time I put my password in when I log in but after that I don't want to type it again. When I use my laptop ...
0
votes
1answer
205 views

ssh keeps asking for a password

I am trying to set up an MPI cluster, following Setting Up an MPICH2 Cluster in Ubuntu tutorial. At the end of step 7, it says that I should not receive a password request, which unfortunately is not ...
0
votes
0answers
754 views

How to Enter into Recovery mode? [duplicate]

Possible Duplicate: How do I boot into a root shell? How would I boot into the Ubuntu and Windows recovery modes if I removed the options to do so from the Grub menu? My root password has ...
0
votes
2answers
435 views

Login keyring prompt appears twice on login

Whenever I log into my Ubuntu desktop machine, a password dialogue appears for the login keyring. Once I've entered the password, it comes up again (and this isn't because I got it wrong the first ...