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

learn more… | top users | synonyms (1)

4
votes
1answer
1k views

Software Center doesn't prompt for password

I'm using Ubuntu 10.10. The software center was asking me for password when I wanted to install/remove any application. Since last week, it doesn't prompt for password. Also, I have the same problem ...
4
votes
1answer
435 views

How do I crate a virtual ftp user with preseted password using ftpasswd and bash

Hello command line gurus, I've created an ftp user like this: ftpasswd --passwd --name webftp --uid 33 --home /var/www --shell /bin/false What I like to do is to create the same user with a ...
4
votes
4answers
247 views

How can I prevent a user from changing their password? [duplicate]

I want to prevent a user from changing their own password. Additionally, if possible, I want to prevent them from changing it via sudo.
4
votes
5answers
21k views

How to change root password in ubuntu?

I am trying to change root password in my Ubuntu system. This is what I did: ashot@ashot-desktop:~$ sudo passwd root passwd: Authentication token manipulation error passwd: password unchanged ...
4
votes
1answer
396 views

How can I batch decrypt a series of PDF files?

I have a bunch of PDF documents I know the password for and would like to decrypt them. How can I achieve this?
4
votes
2answers
4k 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 ...
4
votes
3answers
7k 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. ...
4
votes
2answers
3k 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?
4
votes
1answer
127 views

Is there a way that I can disable change password

I have 20 computers in a high school lab and I want to set up a standard student log in. This is done, the problem is that students can change the password to anything, is there a way to block this? ...
4
votes
2answers
2k views

How do I get Ubuntu to ask me for a password at login again?

I just installed Ubuntu 12.10 and afterwards, I accidentally set the administrator account password to empty/null. This gave me problems when trying to do administrative tasks in the GUI, so after ...
4
votes
4answers
2k views

How can I use my GPass data?

There are two parts here: It appears that GPass is dropped in oneiric so can anyone recommend a new password manager? Is there a way to open the file created with GPass, or do I need to recover the ...
4
votes
1answer
75 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 ...
4
votes
1answer
170 views

How can I make ubuntu ask for my password before mounting usb-drives? [duplicate]

I did some research and found my question asked already. It is a duplicate of is it possible to make ubuntu ask for my password before mounting usb-drives? the problem is, they did not answer that ...
4
votes
2answers
467 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 ...
4
votes
1answer
2k views

How can I change the password of Deja-dup (Backup)?

How can I change the encrypted password of Deja-dup (Backup)? I have set the encrypted password, it worked in the first two days, but now every time the backup starts it asks for the password I type ...
4
votes
1answer
855 views

I broke logins to my server by fiddling with /etc/passwd and /etc/shadow

I am running an Ubuntu Server (with ebox/zentyal installed). I believe it uses a combination of LDAP users and local users but I currently cannot login (through SSH) with any of them. I was trying to ...
4
votes
1answer
750 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?
4
votes
1answer
3k 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
2answers
162 views

Will my data be safe if my laptop is stolen when there is FDE and auto-login?

My SSD supports Full Disk Encryption (FDE). I have enabled FDE and set a password in BIOS. In case my laptop is stolen or lost, I want nobody to be able to get my data. Is it now secure to allow ...
4
votes
1answer
483 views

Password problem after creating a new user

I created a new user account and when I try to login to that account by switching accounts it said wrong password. I searched here and found my answer here - Create a new user in 12.04? Now when I ...
4
votes
1answer
245 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 ...
4
votes
1answer
176 views

Long passphrase for login and short password for screensaver

The situation is that: For the encrypted home directory, any passphrase less than 10 characters is useless at all. If someone physically get the harddisk, the data and the other sensitive password ...
4
votes
0answers
197 views

The information could not be retrieved. Maybe your internet connection is down? [closed]

I got this error from Ubuntu One Control Panel It could be related to: - I tried (at least) tow times upload 3GB file using web interface without success - I create copy of one file from-to sahred ...
4
votes
3answers
567 views

How to allow a “standard user” (no sudo) make IP config changes without requiring admin password

Anyone know if it is possible to have a "Standard User" account make IP changes (via GUI or terminal) without requiring the admin (sudo) password? I want the user to be able to change interface from ...
3
votes
3answers
2k views

How to extract saved password from Remmina?

I don't remember my password for one of my servers. I have a working connection saved and want to get the password from it. From Remmina faq: Q: How are my passwords stored? Are they secure? ...
3
votes
3answers
9k views

Find the password for the currently connected wireless network

I want to find the password for the wireless network that I am currently connected to (and I entered the password when connecting to the network). How can I do this in Ubuntu?
3
votes
3answers
20k views

How do I turn off all the password prompts?

I've been using Ubuntu 12.04 LTS since release and am trying to figure out a couple things about all of these passwords and key-ring prompts that I've just been living with for a while. Ever since ...
3
votes
4answers
9k 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 ?
3
votes
2answers
12k views

I cannot enter my password in the terminal - can't install packages [duplicate]

Possible Duplicate: Nothing shows up on the screen when I type my password I can open a terminal (Ctrl-Alt-T) I can copy or type in the following: sudo wget ...
3
votes
1answer
165 views

Why does the ubuntu password screen take longer on a wrong password?

I noticed that a check on a good password takes ~.5 seconds. However, if you give a password that is incorrect, it takes ~3 seconds to inform the user as such. Why is this?
3
votes
1answer
6k 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 ...
3
votes
3answers
3k views

Enable/Disable Passwordless Login/Autologin Via GUI/Command Line

Before I ask the question, would someone please help stipulate the Ubuntu definition for these two seemingly identical but different terms (I've given drafts.): Autologin - When you power up the ...
3
votes
2answers
895 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
232 views

Set 2 passwords for one user?

I need to set 2 passwords for a user, like: One password for normal usage and another one for sudo access. How is this possible?
3
votes
3answers
13k views

Samba does not accept my password

I have installed Samba onto Ubuntu 12.04 Server but I can't login as it says my password is incorrect but I am the only user so there are no other passwords. I have tried changing the password ...
3
votes
1answer
26k 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 ...
3
votes
3answers
862 views

Passwords in the Password/Encryption Keys program

I noticed that I have passwords in the Password/Encryption Keys program . It appears that anybody who walked up to my computer could go look at all my passwords without needing a master password. Did ...
3
votes
2answers
955 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. ...
3
votes
2answers
11k views

How can I delete a mail account in Thunderbird?

I missed one letter of my user name for my mail when add an account to Thunderbird. My mail is reachable in webmail with my browser, but is unreachable in Thunderbird. How do I delete an email ...
3
votes
1answer
1k views

How to enforce company password complexity in 10.04?

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 ...
3
votes
3answers
6k 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
3k 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
1k views

Using word list to brute force encrypted partition

I used the Disk Utility to encrypt an external HDD about a month ago. Now it seems that I have forgotten the password. I have formed it according to a set of rules, so I have generated a word list ...
3
votes
1answer
94 views

Why don't the commands 'sudo bash' or 'sudo -s' ask for a password? [duplicate]

Even when I am logged in as a non-admin user, when I enter sudo bash or sudo -s, the system does not ask for any password. In the command history, I have not entered any password for sudo earlier ...
3
votes
1answer
380 views

Ubuntu won't let me enter my root password

When I was installing a program, it said that I needed to run it as a normal account rather than an administrator account, and so, being the inexperienced person that I am, changed my account to ...
3
votes
2answers
2k 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 ...
3
votes
2answers
57 views

When installing several programs in a row, some needed my password, some didn't. Why?

When I was installing several programs from the Ubuntu Software Center, I installed several of them in a row; for some, I was asked to provide my password; for others, I wasn't. When I removed them, ...
3
votes
2answers
367 views

Is there a way to move passwords from “Default” to “Login” in seahorse?

When I reinstalled Ubuntu, I logged in on my wifi and authenticated with a password that seahorse saved in "Default". But I want that in "Login" so that I won't have to enter my password twice ...
3
votes
2answers
703 views

Ubuntu asks for password several time when logging in

When ever I log into my machine (Lenovo Laptop) Ubuntu (Natty running Unity) ask for the keyring password several times (4-5) why does it do that and how can I make it stop?
3
votes
1answer
151 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, ...