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

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427 views

Why was I asked to create a password in order to disable secure boot on initial installation of Ubuntu 16.04?

On initial installation of Ubuntu 16.04, I checked off "Install third-party software" and, underneath it, I was prompted to check off another option which would allow the OS package to automatically ...
4
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0answers
288 views

Getting “No key available with this passphrase.” when trying to add a new LVM encryption password

I am getting "No key available with this passphrase." when I try to reset the password for the LVM encryption on my Ubuntu box. I have tried the following commands: sudo cryptsetup luksAddKey /dev/...
4
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0answers
374 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 ...
4
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0answers
552 views

ecryptfs-setup-private login passphrase incorrect

I'm trying to access my former home folder. When I run ecryptfs-setup-private, I am asked for my login passphrase which returns ERROR: Your login passphrase is incorrect. I have tried both, my login-...
3
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0answers
25 views

frequent rejection of password Ubuntu 16.04 --no pattern

Several days ago my password started to be rejected frequently. I had to type my password 2 or 3 times for sudo commands and sometimes open a new terminal before the password was accepted. ...
3
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0answers
56 views

Cron using a command that asks for password

I was able to fix this by using the encfs -S option, this pulls the password from a file instead of prompting for the password every time the script is run. This is not very secure as the password is ...
3
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0answers
166 views

Extract a rar file with a password that contains special characters

How can I extract a rar file with a password that contains special characters like ', ", `, /, \, ^, (space), !, ?, {, }, [, ], $, &, %, *, ~, :, ,, <, >, etc. Here is an example of PASSWORD ...
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0answers
101 views

Cannot type disk decryption password during boot

The GUI loads to input the decryption password, but when I type, the characters appear in the top-left of my screen, as though I was typing at a console without a command prompt. Forcing power-off ...
3
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0answers
76 views

How to prevent the people from using 'e' to change the 'config' in grub?

I'm really stumped this time because, I've tried to configure the 10_linux & the 00_header the /boot/grub/grub.conf I've tried it many times, but unable to protect it with Password Please do ...
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0answers
579 views

Not accepting the crypt disk password at boot to unlock the disk for ubuntu 14.04

This is really a major issue. Check what happened. Please Help me with a solution... I had windows 7 installed in my laptop. I decided to install ubuntu 14.04 and remove windows 7. So while ...
3
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0answers
422 views

Xubuntu: How can I avoid the double-password entry (lightdm then xscreensaver) on user switching?

I'm running Xubuntu raring with lightdm and xscreensaver. Both users on the system have xscreensaver set to lock the screen after n minutes. However, when I click "switch user" (or do gdmflexiserver --...
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0answers
885 views

How to display password policy information for a user?

Ubuntu Documentation > Ubuntu 9.04 > Ubuntu Server Guide > Security > User Management states that there is a default minimum password length for Ubuntu: By default, Ubuntu requires a minimum ...
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0answers
75 views

Fresh Install of 16.04 First Login Failure

I installed a fresh 16.04 on a Lenovo Ideapad 300 i5 Skylake. During installation I entered a user name and password. The installation concluded fine and asked me to reboot. Did the reboot. Got to ...
2
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0answers
50 views

OpenSSH asks for root@hostname password instead of user@hostname password

So I have this other desktop PC, that serves as my server, primesystem and a laptop as my client, zerosystem that is connected to it. They both serve as my ssh-server and ssh-client respectively, and ...
2
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0answers
485 views

no passwd entry for user administrator

I am in a terminal session and try to su to the administrator account. I get a response of no passwd entry for user administrator. I can logout and login as administrator account just fine with the ...
2
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0answers
208 views

Password in WiFi hotspot in Ubuntu 14.04 LTS not working

I am using Wired internet. Want to create a WiFi hotspot using an USB Wireless router. I tried all the possible way discussed here in AskUbuntu like: Followed step by step several times according to ...
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0answers
162 views

gnome-keyring/pinentry gpg key password saved indefinitely after ubuntu 15.10 upgrade

After upgrading to ubuntu 15.10, the password prompt for gpg keys has changed to a program called pinentry. The pinentry prompt provides a text field for the passphrase, as well as a checkbox for "...
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0answers
93 views

In Ubuntu 14.04, password works for system login but nothing else

TOTAL noob here, having installed Ubuntu 14.04 on my laptop (with some difficulty, as I have no clue what I'm doing). I set a strong login password that continues to let me log in to my system. I can ...
2
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0answers
486 views

cryptsetup: unknown fstype, bad password, ect. Bug? Ubuntu 14.04.2

I can't log in to my system at first I had gotten the following error: cryptsetup: unknown fstype, bad password or options? Ubuntu spammed this at boot. Now I can't run the Ubuntu OS ...
2
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0answers
367 views

How to make nautilus forget SMB session passwords without logging out

I'm testing the accessibility of a couple of samba shares through nautilus. When inserting the password for the first time, I've chosen "remember password until you logout" but now I'd like to make ...
2
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0answers
159 views

I always get “Invalid password” on my first attempt to log in after long locks

At work I'm running Ubuntu 14.04 and after it's been locked for too long, my first attempt to login/unlock the computer will be met with Invalid password no matter how careful I am. The second ...
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0answers
231 views

Unable to decrypt disk on normal Lubuntu boot

I'm having trouble starting up my system. I use VirtualBox to run Lubuntu 14.10 on Mac OS X 10.10.1 host. I have used the built-in disk encryption available when installing (L)Ubuntu. When it boots ...
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0answers
387 views

How do we implement requirements of password policy?

This question might look similar but I could not find a solution to this which covers all the below requirements of the policy, Hence please help me: - Incorrect pass lockout (after 3 incorrect ...
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0answers
56 views

Validate password against regular expression?

Is it possible to somehow set a regular expression that would validate a user's password? So that if the regexp is set to: ^qwerty|йцуке$ than both qwerty and йцуке will be valid passwords. I want ...
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0answers
246 views

LDAP Client change Unix and Samba password

I have to work in a mixed Windows/Linux world as far as desktop clients are concerned. I've got a central OpenLDAP server with Samba3 that serves a fake windows domain which keeps the Windows guys ...
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0answers
108 views

Select account based on password instead of username

Sometimes I might be forced to open my PC in front of strangers for some reason. In front of other people, I would like to make it appear that I'm logging in normally into my computer, but secretly I ...
2
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0answers
120 views

Password changed for no reason?

I'm having a problem logging into my computer. I have Ubuntu 12.04 and I am 100% sure I didn't change my password, although I tried typing it 100 times, it's not working. I restarted the computer, I ...
2
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0answers
234 views

Prevent that TrueCrypt gets Administrator rights

If I try to open a TrueCrypt drive, TrueCrypt asks me for my administrator-password (also when I am a normal user). I know, that i can prevent this password-asking by editing the sudoers file = giving ...
2
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0answers
385 views

problem sharing printer via samba in Ubuntu server 12.04

I have cannon ImageRunner 1133 I want to share it through samba with cups server installed on Ubuntu server 12.04 it works all fine I installed samba and cups server ubuntu and windows clients can ...
2
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0answers
62 views

Why do I see a screen showing all text I typed during the session on logging out?

When I log off of Ubuntu 12.10, a screen appears shortly with all the text I typed during the session, including passwords and such. Is this supposed to happen? [update] The screen is fullscreen ...
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0answers
52 views

Pasword space is blank under VMWare, what can I do?

I upgraded to Ubuntu 12.10 on my VMWare and now the password space is just not there. It says the name of user but no space to enter the password. What to do?
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0answers
960 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. ...
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0answers
34 views

Login screen asks for username

I have uninstalled lightdm by sudo apt-get remove lightdm by mistake but I installed it again by going to virtual console and using sudo apt-get install lightdm but the problem now I am encountering ...
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0answers
30 views

Programs that require su permission dont work unless ran as sudo

I'm running Ubuntu MATE 16.04 with openbox as my DE. The programs that require the sudo password get weird errors when i try to run the action that needs it. For instance if i try to install a program ...
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0answers
23 views

What is the preferred way to store secret data on Ubuntu touch?

I am developing an Ubuntu Touch app which shall connect with an e-mail server. However, I do not know how to store the password so that it is safe, for example from abuse by people buying used phones ...
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0answers
43 views

chrome shows passwords regardless of keyring locked or unlocked

My concern is that chrome shows the saved passwords in chrome://settings/passwords regardless whether i have locked or unlocked the login keyring. i also tried to change my login keyring to something ...
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0answers
14 views

passwd : Authentication token manipulation error (Different than other questions)

I'm trying to change password with single command. The command is, echo -e "current_password\nnew_password\nnew_password" | passwd Here's the Output of the command... Changing password for adarsh. (...
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0answers
12 views

Gnome2 Keyring displaying Large Green Tick

When an application wants to access a stored key or certificate in Gnome 2 Key Storage I get a password box with a green bordered white box with a green tick inside. The box overlays the password ...
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0answers
129 views

Asus E200H, keyboard does not work for entering encryption password

For the disk encryption password, I cannot type anything and the keyboard/mouse doesn't work. I've tried the options i8042.nomux=1 i8042.reset to no luck. With the option nosplash, I see this: [ ...
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0answers
26 views

How do I modify PAM's configuration on Ubuntu 15.10 so as to remove the password restrictions?

My main account on my Ubuntu 15.10 has a password that does NOT meet the system's default password requirements. It is this way because either: setting the password on installation doesn't run into ...
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0answers
23 views

shutdown or reboot after entering wrong password x times

My laptop is configured with a bios password to unlock the encrypted ssd. Most times I don't shut it down and use just suspend/resume - this of course leaves the ssd accessible. To increase security ...
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0answers
43 views

My Ubuntu 14.04 does not accept one of the user account password, even in terminal, graphic mode or GRUB. How to fix it?

Lets me explain more, the password changing works well, like sudo passwd username when the message says successful, but after that, the user account continue without any password. I have others users ...
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0answers
119 views

Automatically connect an Openconnect VPN connection

I installed the network-manager-openconnect package and uses it to login to my Openconnect VPN server. The connection works, except that every time I start the connection a two step dialog box pops up ...
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0answers
68 views

How can I limit user login to a certain number of password attempts? Ubuntu 15.10

So basically I want to be able to set it to time out after a certain number of password guesses. If this is possible, would this apply to sudo command attempts as well?
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0answers
37 views

Cifs Share keeps asking for password and is slow

I followed the directions here https://wiki.ubuntu.com/MountWindowsSharesPermanently to mount a windows share and it works as expected. Some issues that I am having is one it is very slow when I load ...
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0answers
36 views

Switching terminals with `Ctrl`+ `Alt`+`Fn` does not require password

Users on my computer have all password requesting options enabled, i.e. password is required on waking from suspend, and on returning from blank screen. The screen turns off after few minutes of ...
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0answers
20 views

Same password for all computers?

I have 2 computers running ubuntu. Is is possible to use the same password with both of them? To be more specific: is it possible to sync the password change from one computer to another? I have ...
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0answers
129 views

automatic login without displaying the prompt for username and password in Chrome

I am on Ubuntu 14.04.3 LTS. I wish to program a script that opens a browser window but bypasses the prompt for username and password and uses the already stored username and password to login ...
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0answers
40 views

My password has deleted by me. What can I do?

I was looking to not enter my password when I am logging in, so I tried running sudo visudo and changed ALL=(ALL) ALL to ALL=(ALL) NOPASSWD: ALL. Which didn't work. So, I changed it back. Now, my ...
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0answers
35 views

Inputting a text to an executable file the moment it's executed

i am bad at choosing titles but my problem is that I have an executable file that returns a value when i type the word password in it using the terminal, but the problem is the file require you to ...