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

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10
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2answers
6k views

How to discard saved password for samba share in unity?

I access samba shares from unity on Ubuntu 11.10 and saved username/pass for it. Now, I want to use a different username. Each time I go to the share and open it, it just opens without asking for ...
10
votes
1answer
1k views

Where is the per-user salt kept?

Where does Ubuntu keep the password salt for each user?
10
votes
2answers
2k views

How secure is KeePassX?

I have hundreds of passwords, since I use a different random one for each website/service. They are all generated & stored with KeePassX, which can be synced to different computers and my android ...
9
votes
5answers
5k views

Why does Ubuntu force users to create a password upon installation?

There's been one problem I've had since I installed Ubuntu to run alongside Windows, I assume this would also be the same if it was installed to replace the other operating system as well, the ...
9
votes
2answers
13k views

unable to reset root password of mysql

I need to reset the root password of my local mysql installation but it woudln't let me. I've tried this: $ sudo /etc/init.d/mysql stop * Stopping MySQL database server mysqld ...
9
votes
2answers
3k views

What is the least insecure way to store a password that is used by a script?

I have a Bash script that automatically authenticates with a service using my username and password. The credentials are currently stored as plain text within the script. What precautions should I ...
9
votes
1answer
7k views

Xubuntu: No password request after suspension

If I suspend my Xubuntu 12.10, and then take my computer off the suspension, it doesn't request any password. I have tried adding the gnome-screensaver on autostart settings, which I read somewhere ...
9
votes
2answers
232 views

How to make it so that a file can only be executed by root, but not as root?

There are certain applications that I don't want people to be able to open unless they have root privileges, however I do not want to give the programs root privileges. So how can I make it so that ...
9
votes
3answers
2k views

Is Gnome keyring safe?

I've always read keyring like Gnome-keyring is safe way to save credentials. I don't understand it. If I open my Gnome-keyring in my Ubuntu Desktop, I can right click any entry and click show password ...
9
votes
1answer
302 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 ...
9
votes
5answers
7k views

After new Ubuntu 15.04 installation, startup asks for password even though no disk encryption was set up

I installed a brand new SSD into my laptop and did a fresh install of Ubuntu 15.04, with NO system encryption used (only Home directory encryption). However, it still asks me for a password when ...
9
votes
5answers
47k views

How can I unlock a password locked rar file without knowing the password?

I have .rar file that is password protected, but I accidentally have forgotten the password. The file extremely important to me. How can I get my file back? In windows, there was many programs that ...
9
votes
5answers
16k 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 ...
8
votes
3answers
15k views

How do I make Ubuntu not ask me for my password?

I'm confident that I do not need a password for my computer. How do I remove passwords for things like when the screensaver activates and installing software?
8
votes
4answers
5k 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? ...
8
votes
4answers
36k 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 ...
8
votes
3answers
7k 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 ...
8
votes
4answers
8k views

How to move wifi passwords to a new installation

I have an Acer Aspire ZG5 netbook which is currently running Jolicloud, but I've decided it isn't for me and plan to switch to Lubuntu or Xubuntu. However, I do lot of travelling and have many saved ...
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 ...
8
votes
5answers
13k views

Unlock all private keys on Ubuntu, entering password only once at login

I login to Ubuntu 12.04 using a password. Later on, when I use my browser(Chrome), I'm asked for a password to unlock the keychain so that the browser can access my saved credentials for various ...
7
votes
3answers
430 views

How do I change my password?

How do I change my password for Ubuntu?
7
votes
4answers
31k 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 ...
7
votes
2answers
5k views

How to make Chrome/Chromium remember passwords in the gnome seahorse keyring?

Is it possible to make chrome or chromium (as that comes default in the repos) to use the Gnome seahorse as password vault? I have not found a way to do this for Firefox either, but maybe a solution ...
7
votes
2answers
4k views

How can I clear my cached gpg password?

I've tried: the SIGHUP method --> no succes the cache timeout in gpg-agent.conf --> it seems that this file is not read, althougt I have the 'use-agent' line in gpg.conf What should I do ?
7
votes
1answer
3k views

What hash algorithm is used for passwords stored in shadow in 11.10?

I'm a little bit confused if it's MD5 or SHA.
7
votes
4answers
9k views

Administrator account with no password is unusable

I tried removing my administrator account's password. Now that there is no password set for it, I cannot put a new one nor do any actions which needs administrator privileges. I tried different fixes ...
7
votes
2answers
164 views

What are the reasons to have strong password at home?

For a typical home PC the security situation is following: No servers running, not even the SSH. Firewall is ufw running in simple mode: all outgoing allowed, all incoming denied. Torrents and DC++ ...
7
votes
1answer
8k views

How to remove/change saved SVN passwords?

I'm using SVN from Eclipse and it has a feature that allows you to save the SVN user and password. It think it uses something called gnome-keyring to do so. The problem is that now I need to use ...
7
votes
0answers
10k views

Can I run sudo without entering a password? [duplicate]

Possible Duplicate: How to run an application using sudo without a password? I like Ubuntu, but I hate entering a password every time when I run a command with sudo. Can I avoid it?
7
votes
0answers
930 views

How do I reset my password? [duplicate]

Possible Duplicate: How do I reset a lost Administrative(root) password? I inherited a machine with Ubuntu desktop installed. It has a password in place and I have no idea what the ...
6
votes
2answers
5k views

Password not working in Graphical Applications (gksu)? Works with sudo

I am having a problem where when I try to run say GParted, when I am prompted for a password, it says "Incorrect Password" But when I enter the same password using terminal sudo gparted for example, ...
6
votes
6answers
279 views

What strategies (especially available software) do you use to keep passwords safe?

Inspired by the recent issue with the Gawker network sites, I've been re-evaluating my password management. What strategies do you use to keep passwords safe? I'm particularly interested in ...
6
votes
2answers
13k 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
1answer
1k 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
1answer
49k 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
700 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
2answers
435 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
2answers
23k 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 ...
6
votes
3answers
6k views

How to set user passwords using passwd without a prompt?

I am writing a script to add a large amount of users to a system. Part of this involves setting default passwords for each user. How can I set users' passwords without it prompting me for the password ...
6
votes
4answers
806 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
1k 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 ...
6
votes
3answers
4k views

Why does ubuntu 13.10 keep asking for my gmail password?

After upgrading to 13.10, I am now getting a prompt for my gmail password every time I log in. There is no indication as to which service or application needs this information. If I enter the correct ...
6
votes
2answers
48k 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
1answer
5k 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
1answer
4k views

Storing passwords with python keyring

I'm using keyring library to store passwords in my python app. import keyring keyring.set_password('My namespace', username, password) keyring.get_password('My namespace', username) And this works ...
6
votes
1answer
5k 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
1answer
2k 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
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 ...