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

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6
votes
2answers
16k 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.
6
votes
4answers
19k views

How to change password using usermod?

I am superadmin of a server and like to change password of an existing user . How can I do that ? I tried usermod -p 'new-password' john but it didn't worked ?
6
votes
2answers
55k 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 ...
6
votes
2answers
451 views

Standby password

My problem is that every five minutes my screen is getting dark and then asks me for a password. How can I turn off the password request after computer's standby wakeup? Please show me where I can ...
6
votes
1answer
2k views

How to configure pkexec to not ask for password?

I have a GUI application that needs to call a daemon (written in Python) with superuser privileges. I would like to do this without prompting the user for a password. Since the daemon is a script, I ...
6
votes
2answers
745 views

Why I'm not asked to set a password for Root when Installing Ubuntu?

When I install Ubuntu, it never shows an option to set a password, yet there is a password when trying to log in to the admin account and when I try to install packages. I can't change the password in ...
6
votes
3answers
770 views

How to add a Password to User Account if previously it set to “Log In Without Password”

I'm using Ubuntu 11.10 and some time ago I opened User Accounts with Administrator Privilage and I made change as "LOG IN WITHOUT PASSWORD" and now I want to add a password to My User Account. But I ...
6
votes
4answers
36k 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 ...
6
votes
2answers
60k views

What is the root password for a live usb stick? [duplicate]

ubuntu@ubuntu:~$ su Password: su: Authentication failure I installed Ubuntu to a USB stick. I didn't set any password any time - why can't I use su?
6
votes
4answers
812 views

Making touchpad and resume password changes permanent

in Ubuntu 10.10 I really don't want any password on resume on my EeePC, so I have to run gconftool-2 --set --type=bool /apps/gnome-power-manager/lock/suspend false and I want two finger middle ...
6
votes
1answer
6k views

How to add the GRUB password protection to the OS load process instead of when editing boot options

This is the current content of my grub.conf file. # grub.conf generated by anaconda # # Note that you do not have to rerun grub after making changes to this file # NOTICE: You have a /boot ...
6
votes
2answers
3k views

Thunderbird does not store remote address books' passwords

I have the following problem: I am running a Ubuntu 13.04 64 bit on a Lenovo Thinkpad S430. As email composer I use Thunderbird (24.0). All my contacts are being synced from an ownCloud address book ...
6
votes
2answers
8k views

Wifi only accepts passwords of 5 or 13 characters

Installed Ubuntu 13.04 and when attempting to connecting to a home wifi network, the connect button is only click-able with passwords of 5 or 13 characters. Is there a fix?
6
votes
2answers
972 views

“System problem detected” password fail [closed]

I have multiple Ubuntu Precise servers and workstations, all of which suffer from the same really infuriating problem: when the "System Problem Detected" dialog comes up due to something or other ...
6
votes
2answers
4k views

How to disable password on Hibernate/Suspend?

I have installed Ubuntu 11.10 and on suspend/hibernate I am asked for password. I couldn't find apps > gnome-power-manager > lock in gconf-editor. What's the solution for this?
6
votes
1answer
3k views

Set encrypted home passphrase

I just reinstalled Ubuntu, Natty. I set to use encrypted home, but once the system was running, I was asked to define the encrypted home passphrase. Out of haste, I skipped that, but now I want to ...
6
votes
4answers
2k views

How safe are my files in /home?

This is a community wiki. I would really like other folk's thoughts on this. I do not want to discuss the ethics of storing plain text passwords either. For those unfamiliar, libpurple is the library ...
6
votes
2answers
586 views

First password often wrong when unlocking computer

I have a laptop with Ubuntu 14.04, when I lock my computer and try to unlock it after some time has passed (not if I do it immediately) the first time I try to unlock it, it will tell me that my ...
6
votes
2answers
1k views

Ubuntu 13.10 isn't remembering my passwords anymore, why?

Ubuntu's password management used to be working just fine for me, but around two weeks ago after running apt-get upgrade, I've noticed that now it keeps "forgetting" my passwords. For instance, I ...
6
votes
3answers
751 views

Password protect individual apps

Can I give certain applications their own rights, e.g. passwords, different from root password? The reason I want to do this is, apps like compiz, settings manager, that don't need root access. This ...
6
votes
3answers
355 views

Why I have to wait some seconds before I can input my password on login?

When on login I click on the user, immediately shows password field but before I can type it I have to wait some seconds, sometimes even 5! I don't see this problem on other computers that I have, ...
6
votes
1answer
2k views

Opening terminal asks for sudo password

Whenever I open a new terminal within 12.04, I am prompted to enter my sudo password. Why is this happening?
6
votes
1answer
1k views

How to let Muon update manager run without entering a password?

How to prevent Muon from asking a password when installing updates? Adding user ALL=(ALL) NOPASSWD: ALL to sudoers does not help. sudo apt-get upgrade works without a password, but Muon is still ...
5
votes
3answers
530 views

how do I enter a sudo command when part of my password contains uppercase letters and numbers

Part of my password contains numbers and uppercase letters. How can I know that I am correctly typing my password in a terminal when invoking sudo? I am not very computer literate, so I would ...
5
votes
3answers
5k views

Is there a way to lock my browser with a password?

It would be OK if it was only with my login password, but I would like to lock both midori and Firefox so that they cannot be used without entering a password. I'm running 12.04.
5
votes
3answers
536 views

How to ban an IP temporarily after several incorrect password attempts?

My new server got hacked (sigh). I have physical access to my machine. It seems like the only changes made was a new user account created and a broken /etc/sudoers file. It seems as though the ...
5
votes
1answer
12k views

Why am I not asked for password at startup?

I have Xubuntu 11.10. When I log out and in (without restarting the computer) I am always required to chose a session and provide a password for entering that session. But when I restart the ...
5
votes
3answers
2k views

Unable to save connection remmina RDP

I have been using windows remote desktop from remmina, what i feel so awkward is I don't see the save password button enabled, I need to frequently use my remote connection, and don't like entering ...
5
votes
3answers
5k views

Remove sudo password when connecting to *new* WiFi network

So currently when my non-admin user tries to connect to a new WiFi network (e.g. at a cafe say) NetworkManager prompts for the admin user's password. Is there a way to turn this off and to allow the ...
5
votes
1answer
304 views

How stop Ubuntu from reading my password out loud every time I log on?

I turned on a certain feature on the login screen and now my password is read out loud when I type it on login. What did I turn on, and how do I turn this back off?
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 ...
5
votes
3answers
175k views

What is the default root password when was never set at installation time? [duplicate]

On a standard desktop installation, I created my administrative and user login. Further with some applications, the system ask for the root password. So my question is: What will be the default ...
5
votes
1answer
419 views

How to get sudo to prompt you for a password each time

I find that if I execute something using sudo that then if I execute something else soon after also using sudo, that it does not prompt me for my password, and although this can be inconvenient in ...
5
votes
1answer
4k views

How do enforce company password complexity?

I need to configure a Ubuntu 10.04 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 ...
5
votes
4answers
12k 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 ...
5
votes
3answers
2k views

Which is the easiest way to reset the mysql root password?

In the past there has been sudo /etc/init.d/mysql reset-password, (1) is manually restarting and setting the password with an sql command again required? (2) (1) ...
5
votes
1answer
2k views

What is my user login password?

Just got a new netbook running Ubuntu. When I turn it on it auto-logs-in to the desktop automatically, but when I try to connect to the wireless network it wants my Keyring password to store the ...
5
votes
4answers
474 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 ...
5
votes
2answers
2k 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 ...
5
votes
3answers
8k views

Ubuntu 14.04 Login screen password always incorrect

I have just installed Ubuntu 14.04 for the first time boot. I am a long time MS Windows user and don't like where Windows is headed so I decided to switch to Ubuntu and only use Windows for gaming. ...
5
votes
2answers
12k views

what rar password recover tools are available?

Long ago i have made my archive with images by protecting it with a password but I have forgot the password and I made many trails to crack it with my general combinations but failed. could somebody ...
5
votes
2answers
2k views

Password field of login screen is disabled

I'm using ubuntu 14.04, here in the 'login screen' the password field is disabled, this issue also occurs sometimes during 'lock screen'. I don't want to remove password from my account nor do i want ...
5
votes
2answers
23k views

OpenVPN - Password Authentication Only

When using the OpenVPN Client for Windows, I can log into the OpenVPN server with only a username and password. I can't figure out how to make the same thing happen in Ubuntu. It seems that some kind ...
5
votes
2answers
4k views

How to Disable KDE Wallet and have “remember password” working

When I log into my system I have a KDE Wallet password dialog. When I disable it, some passwords as wifi or FTP accounts don't work any more, and the main problem - I dont have "remember password" any ...
5
votes
1answer
213 views

Any reason to have a strong user password?

I recently decided to change my (very) strong user password to something trivial. This was mostly to eliminate frustration with typing a long password each time I sudo or whatever. My question is, ...
5
votes
1answer
206 views

Set password aging for a group of users

With chage command we can change password expiry information for a user. Is there anyway to enforce password aging for a group of users?
5
votes
1answer
219 views

How to specify in password input dialog the language always to be English?

In Gnome I often enter sudo password when Russian language is being selected. It's so annoying to wait for password verification fail, to switch to English and retype the password! Is there a way to ...
5
votes
4answers
2k views

After Login there is a strange window asking for a password

since upgrading to Ubuntu 13.04, I get a window asking for a password for my email address. The window appears after logging into the desktop. The window is titled "Zugangsanfrage" (access request) ...
5
votes
1answer
296 views

Multiple Passwords on One Account

I'd like to join three ideas into one interesting and sometimes useful feature. There was a question about using multiple passwords earlier this year, but it didn't receive much attention. I'd like to ...
5
votes
1answer
189 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 ...