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

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6
votes
1answer
44k views

Samba and User Acount Passwords

Is it possible to tie your login password to your samba password? Ideally every 30 days, users need to change their passwords to login into the machine and if its possible, when they update their ...
8
votes
2answers
3k views

How to make Firefox use the Gnome Keyring vault for password storage and retrieval?

With Chrome it is quite simple to use Gnome Keyring for password storage. But with Firefox 4 on ubuntu 11.04, I don't know how to achieve this. I remember that firefox 4 supposedly has OS integration ...
5
votes
2answers
3k views

How to change/create password keyring

when I try to remote desktop to the server from another ubuntu machine using the remote desktop viewer, it asks me to enter the password, which I do, then the viewer pane just goes black. When I come ...
4
votes
1answer
1k views

How do I change passwords that have been saved in the keyring?

I created a saved password via System ▸ Preferences ▸ Passwords and Encryption Keys ▸ File ▸ New ▸ Stored Password. How can I update it?
3
votes
0answers
90 views

Lock screen asks for password on no-password account

The Ubuntu lock screen always asks for a password even when the account does not have password. In my opinion, it should be exactly like the login screen: a button "connect >" for accounts that don't ...
2
votes
2answers
8k views

Adding NOPASSWD in /etc/sudoers doesn't work

On 14.04 here. I SSHed into my machine, added the following line to /etc/sudoers: myuser ALL=NOPASSWD: ALL And then tried running: sudo mkdir /etc/blah ...and I'm being asked for my password. ...
14
votes
2answers
4k views

Disable password access through SSH?

I'm setting up a server for backing up my desktop box remotely. I want to prevent remote password access to the server, permitting only users with private keys (AKA my desktop box) to access it. How ...
13
votes
1answer
4k views

Will changing password re-encrypt my home directory?

I need to change my user password. Do I need to take any extra steps for my encrypted home directory to become inaccessible with my old password and only accessible with my new password?
6
votes
2answers
19k views

How to reset a password from kwallet?

How to reset a password from kwallet? I've read about a kwallet GUI that could be installed from synaptic, but I found nothing. Actually, it shows a GUI asking me the password, so is must have ...
5
votes
4answers
171 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 ...
3
votes
2answers
2k 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
1k 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 ...
9
votes
5answers
14k views

How do I unlock a user account?

I've been to system settings and to User Accounts. My account is the only one on the system and I have previously been able to UnLock the screen so that I could set my account to login without ...
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
11k 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
113 views

Log in with a password

I have not enabled auto login, but I can still log in to my account without entering my password. I want to turn this option off and let Ubuntu ask me for my password before logging in. This is only ...
2
votes
3answers
85 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
2answers
599 views

Multiple passwords per user

Is it possible to allow multiple passwords to log on to Ubuntu for the same user? I have also possibly considered having two users share a home folder, but I am not sure if that is safe. If anybody ...
2
votes
0answers
808 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
1k views

wireless security (wpa + wpa2) passwords not accepted; wireless security = 'none' is functional [closed]

Hi I am new to Linux coming from Mac. I have several macs and formerly windows systems connecting to Netgear wpn824 router wirelessly. I just installed Ubuntu 11.10 on my daughter's Samsung NC-20 ...
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: ...
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?
9
votes
1answer
293 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
167 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 ...
5
votes
2answers
12k views

Encrypting Files and folder through terminal

I am new to part of encryption on Ubuntu . Is there any way to encrypt files and folder with password from terminal ? without using truecrypt or cryptkeeper etc.
4
votes
2answers
1k 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
4k 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
208 views

Yubikey Two-factor Authentication Full-disk Encryption via LUKS

I recently acquired a Yubikey Neo - a nifty little hardware second factor authentication device. It's primarily intended for use with One Time Passwords, and the emerging U2F protocol - but since ...
3
votes
1answer
265 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
520 views

How to set up GRUB2 password in an easy way?

I need to setup password for GRUB2 on Ubuntu 14.04 LTS amd64. The setup I am trying to reach is to have [e]dit and [c]onsole options protected by password, but booting of operating system entries ...
3
votes
2answers
466 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
324 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
405 views

Use one password for administration and another for system login

How can I give a user one password for normal usage when logging in, and another password for system administration and sudo access? I want one user to have two passwords.
3
votes
3answers
7k views

“Authentication Manipulation Error” when trying to reset my password

To reset forgotten password in 12.04 LTS. I am able to boot the computer. i choose root option and then come to password changing. they ask me to enter new UNIX password which i do type. but at last ...
3
votes
2answers
4k views

Run Bash Script as Root

Is there some way I can run a Bash script as root without being prompted for a password every time? I'm attempting to automate the process of starting my LAMPP install, which requires me running a ...
3
votes
1answer
6k 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
93 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
68 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
78 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
1k 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
3k 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
460 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
1answer
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
41 views

Why is there a delay when entering a wrong password?

When entering the right password the application or the OS (no specific application, pretty much everywhere) accepts this immediately, but when entering a wrong password there is a slight delay of 1-2 ...
1
vote
0answers
239 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 ...