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

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5
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0answers
739 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
votes
0answers
310 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
votes
0answers
390 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
votes
0answers
553 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
votes
0answers
42 views

Unlocking at the lock screen fails

I have encountered a strange issue with my Ubuntu 15.10 install: Usually, I lock my desktop with Ctrl+Alt+L when I leave my computer, and when I come back, I enter my password and can continue working....
3
votes
0answers
36 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
votes
0answers
63 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
votes
0answers
230 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 ...
3
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0answers
117 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
votes
0answers
78 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 ...
3
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0answers
618 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
votes
0answers
424 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 --...
3
votes
0answers
917 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 ...
2
votes
0answers
106 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
votes
0answers
54 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
votes
0answers
744 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
votes
0answers
229 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 ...
2
votes
0answers
191 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 "...
2
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0answers
102 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
votes
0answers
498 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
votes
0answers
164 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 ...
2
votes
0answers
245 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 ...
2
votes
0answers
389 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 ...
2
votes
0answers
57 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 ...
2
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0answers
254 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 ...
2
votes
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
votes
0answers
242 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
votes
0answers
415 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
votes
0answers
63 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 ...
2
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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?
2
votes
0answers
968 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
0answers
26 views

Can I use the Touch ID on an iPhone to unlock Ubuntu?

I have my iPhone next to me - and it's quicker to touch my finger to the Touch ID than type my password. Can I unlock my computer with my fingerprint via my iPhone?
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0answers
15 views

Replace kwallet with gnome seahorse

I have Ubuntu 15.04 and I have recently installed kde desktop. When I was on unity desktop the seahorse application was used to prompting me for main password at startup to unlock the keyring and let ...
1
vote
0answers
48 views

Trying to install Ubuntu to dual boot Windows 7

I am a newbie to Ubuntu. I have done 2 full installations of Ubuntu 15.04 on 2 PC's 100% ok and everything works. I have a Windows 7 Laptop and tried to install Ubuntu from a CD and could not find a ...
1
vote
0answers
71 views

Login screen asks for username after removing and reinstalling lightdm

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 ...
1
vote
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 ...
1
vote
0answers
31 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 ...
1
vote
0answers
25 views

Disable numlock warning on lock screen for notebook

I own a notebook with separate number pad on the keyboard and running 16.04. On the login screen/lock screen, I see a grey warning triangle in the password input field telling me that NUM-Lock is on. ...
1
vote
0answers
52 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
15 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. (...
1
vote
0answers
13 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 ...
1
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0answers
30 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 ...
1
vote
0answers
25 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 ...
1
vote
0answers
56 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 ...
1
vote
0answers
138 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
43 views

Where is a passphrase stored when I request “Remember until I logout”?

When you (with Nautilus or Nemo) access a resource that requires a passphrase you are presented with a dialogue that gives you the choices to forget password immediately remember password until you ...
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0answers
70 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
40 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
38 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 ...