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

learn more… | top users | synonyms (1)

1
vote
2answers
25 views

Bash script and escaping special characters in password

I have been reading a lot of questions already asked here, however, somehow nothing is working for me. I have a bash script where I have to send password which dump database on remote machine, so its ...
1
vote
1answer
31 views

Password Strength

I don't understand why on my Ubuntu install there is such a small password character restriction. I think it's about 13 characters. Is there a way to modify Ubuntu so that I can have much longer ...
0
votes
1answer
17 views

How to change sudo passwords [duplicate]

When I try to change a sudo password, it say it doesn't work even running the mount -rw -o remount / When you run that command it would say i worked from the root menu but would still be invalid when ...
-1
votes
0answers
18 views

What is problem about it? [on hold]

Fisrt, I installed the macbuntu theme in the 12.04. Though it doesn't work well, I can login in, Only these beautiful effect didn't work. I am busying so I worked with it. One day, when I login in my ...
-2
votes
0answers
33 views

What is the password in the administration block? [closed]

My password won't work when I did a new install. When using just live it asked for a password which I did not have, so what is the password for this OS?
0
votes
0answers
25 views

Does Ubuntu store passwords from failed login attempts?

This is probably a stupid question, but if I type in an incorrect password while attempting to log into my account, does that password get stored anywhere? Assuming that I don't have any third-party ...
0
votes
2answers
44 views

ubuntu 14.04 cannot log in, keep going back to password

I have dual win8+ubuntu 14.04. havent used ubuntu for a while. Today I found I am not able to login. I typed the corrected password and it keeps going back to require password after a flash. Tried ...
0
votes
0answers
22 views

Need to reset password, can't bring up grub2

I purchased a new dell laptop preloaded with ubuntu 14.04 LTS, and I need to reset my password. However, I can't bring up the grub2 menu to enter recovery mode (holding down shift during boot up does ...
0
votes
1answer
20 views

I can not change password length complicity by editing common-password

I can not change password length complicity by editing common-password if edit common-password file, i can change all things except password length, the password can be possible to make length up to ...
0
votes
0answers
30 views

NAS won't auto-mount at boot

I want to set up a low-powered system with a netbook (Eee PC) and a NAS for torrent purpose. I’ve made a clean install of Lubuntu 15.04, I installed Samba and updated everything. NAS auto-mount ...
0
votes
1answer
14 views

Can I make the Windows folder require a password to access it? [Edit/change or add flder and data]

Recently, I was thinking that while running wine an application that contains a virus can inject into the windows folder. I don't know if this is possible, but it would be nice to make the Windows ...
0
votes
1answer
19 views

Can't type anything in to to reset admin password [duplicate]

When I go to reset my password in root mode and type passwd lunar It won't let me type to change my password so I need help here the laptop I'm using is a Lenovo G580 (windows on it got corrupted so ...
0
votes
0answers
17 views

Blank password not working on lock screen

I have removed my user account password following this Works fine. But when the laptop goes to lock screen, then Ubuntu is not accepting blank password. It is also not accepting the old password. ...
0
votes
0answers
32 views

Unable to lock Ubuntu 15.04?

I have ubuntu 15.04. When I press alt+ctrl+l to lock my ubuntu, a black screen appears with my mouse pointer. When I start to move to pointer the black screen goes and ubuntu desktop appears(as if it ...
0
votes
0answers
28 views

Password prompts dither after entering password for authentication

I'm having a problem with my new Ubuntu installation. Any password prompt (except in Terminal!) dithers after I enter my password. I have tried changing my password; I was successful but it didn't ...
1
vote
0answers
39 views

Enable shutdown from another computer on LAN without entering sudo password

I'm trying to execute this script from my laptop to shutdown the server without having to enter the sudo password. (Both are running Ubuntu 14.04.2 LTS) ssh -t lachlan@192.168.0.xxx sudo shutdown -h ...
0
votes
0answers
13 views

Blank screen after loggin in from sleep mode

If I close the lid to let it sleep, open it and type in my password, right after that I get a blank screen. How can I fix this. Running xubuntu 15.04.
2
votes
1answer
26 views

Cannot get an access to one of my user accounts [duplicate]

I have two administrator and one guest user accounts on my computer. I have set password to one of my administrator accounts and forgot. Can I get back access to that account trough the second ...
0
votes
0answers
42 views

Can't connect to Wi-Fi network with la Lenovo y50

I'm trying to connect to my Wi-Fi network at home but for some reason it doesn't let me connect. I can connect on Windows but not on Ubuntu. I run Ubuntu 15.04 on my Lenovo y50 laptop. I also made ...
0
votes
0answers
12 views

Why am I being repeatedly asked for swap partition password when apt-get upgrade?

I installed recent kubuntu on a laptop, and choose to encrypt / and swap. Works fine. But very often, when I do apt-get upgrade, I get questions about password for swap partition. I could understand ...
0
votes
0answers
12 views

Install driver for Samsung Xpress c46ofw on Ubuntu 12.04 caused by Password problem?

I tried most of the other suggestions for installing the driver. I downloaded from the Samsung website and unzipped, but now the Terminal says that my password is wrong, but gee, that's the one I use ...
0
votes
0answers
15 views

Passwordless login when I start Ubuntu [duplicate]

When I start Ubuntu, it asks for a password, in order to login to my account. I want this step to be skipped. How can I do that?
2
votes
0answers
28 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
1answer
51 views

How to Enable password after lock/Suspend

I tried searching for an answer. But everyone is asking for autologin or disable passwd. But i want to put a password which on my laptop is not enabled. I tried to do this in settings but it won't ...
4
votes
1answer
85 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 ...
0
votes
1answer
21 views

problem with sudo somehow disabled

This is for an Ubuntu 15.04 on a laptop (Dell inspiron 3135). Somehow the capability to use sudo got lost, and probably connected, I can no longer log in on a locked screen. There is no problem to ...
0
votes
0answers
13 views

Password does not work from time to time

I face this problem quite often. My password does not work on the login page - I just see a message, that "password is incorrect, blablabla". However, if I switch to ctrl + alt + f1 and submit my ...
0
votes
0answers
13 views

How do I add a user in Ubuntu Core? (I can boot but cannot login or root)

I just got an instance of Ubuntu Core 15.04 running on a 16 gig thumb drive. I can boot two ways: The first is via recovery mode. This is nothing like Ubuntu's GRUB2 bootloader. Instead, it says ...
0
votes
1answer
30 views

Resetting my password through the root doesn't work

I went to the root, and then typed in "passwd username" except I used my username. Instead of giving me an option to change the password, it says "Usage: passwd [options] [LOGIN]" and then gives me ...
0
votes
0answers
25 views

Two factor authentication with password and USB Device for PostgreSQL server

I'm going to setup 2 factor authentication for my database server. I'm using PostgreSQL 9.4 DBMS on Ubuntu 14.10. I need to force two authentication methods for my database server. The authentication ...
1
vote
0answers
28 views

Can't log into my session even in recovery mode

I've recovered my session password in recovery mode (By doing enter recovery mode loadkeys fr mount -o rw,remount / passwd me wrote password in a paper ) But when I restart the computer, entering ...
0
votes
0answers
25 views

Fail to log in to an encrypted home Ubuntu 14.04

As titled, I have problem in logging in to an encrypted home. I have encrypted my home (admin) directory some time ago, so I don't really remember whether I written down the passphrase, but one thing ...
0
votes
0answers
41 views

Password popup on USB unplug/replug “Authentication is required to change your own user data”

After upgrading from 14.04 to 14.10 when I unplug and re-plug a USB mouse (or switch keyboard/monitor/mouse with a KVM switch.) an authentication popup dialog appears asking for my password saying ...
0
votes
0answers
9 views

Ubuntu 12 Update Manager Password Failure

Networking expert, Linux noob. I've got Ubuntu 12 running in VMWorkstation on Windows 7. In the Ubuntu GUI, I click on the gear icon in the upper right corner of the screen and click "Updates ...
1
vote
1answer
20 views

Let new user choose password on first login attempt

I know that fedora has this feature when creating a new account, you can set it so that when the user logs into their new account, they can choose the password themselves. How is this achievable in ...
0
votes
0answers
23 views

Ubuntu 14.04 How user domain access to local drives without enter administrators account password

I have installed Ubuntu 14.04 LTS on my Laptop. The domain is running Windows. I added my Laptop in domain. The problem is when I login to my laptop by user domain and I want to access to local ...
0
votes
0answers
27 views

Gnome Keyring missed a password. Doesn't ask again

I'm still confused about how the Gnome-Keyring works, or why everyone seems to just want to remove it. Anyway: I have Lubuntu 15.04... ==== In trying to connect to a Wifi hotspot, I had a mistake ...
0
votes
0answers
28 views

Trouble installing Keepass2 Sync Plugin

I have been a user of KeePass for a long time. Until a few years back, I had only one desktop, and KeePass seems to take care of my password management very well. Now I use multiple devices. What I ...
0
votes
0answers
7 views

no known authentication password [duplicate]

i am asked to enter a password as authentication to add new updates or info to my computer,when in fact i do not know of any since the initial install was not done by me and the guy who installed does ...
0
votes
0answers
27 views

Linux full disk encryption password prompt completely unreadable

After a few updates ago , my computer as it boots up and asks for the hard disk encryption passphrase the menu is completely unreadable. This doesn't bother me too much, but I am curious if there is a ...
2
votes
2answers
44 views

Lock individual application's interface

Can I lock a particular application's interface without locking the whole screen? It would be very useful at work to be able to leave certain applications open when leaving my desk as colleagues often ...
0
votes
1answer
24 views

MySQL Login Error

I recently installed mysql-server on my Ubuntu 14.04 LTS computer and was able to log in only once. I didn't change any passwords or user information but now when I try and login it keeps throwing ...
0
votes
0answers
29 views

Password promt twice at Log In screen

I am experiencing a problem when logging into my account. I’m using Ubuntu 14.04 LTS. The scenario is when I turn on my computer the Log In screen pops up as it should, I enter my password and it ...
0
votes
0answers
34 views

Black screen after inserting password in login Ubuntu 15.04

I have seen lots of open threads about this problem, but nothing specific on how to solve my own problem. I run Ubuntu and the loading screen is normal, the login screen follows and the drums are ...
0
votes
2answers
41 views

How to undo login password removal [duplicate]

I need help, I am very new to Ubuntu and am running 14.04 LTS. the problem was that my password login screen would prompt me twice for my password, I could not find a solution so I decided to remove ...
0
votes
1answer
80 views

ssh keeps asking for a password

I am trying to set up an MPI cluster, following Setting Up an MPICH2 Cluster in Ubuntu tutorial. At the end of step 7, it says that I should not receive a password request, which unfortunately is not ...
0
votes
0answers
52 views

Problem with Ubuntu 15.04 Install switched encripted areas of of my main disk

During install the only area of my disk I requested encrypted was my home folder. What actually happened was home folder is not encrypted and the rest of the disk is encrypted by a blank password. ...
2
votes
1answer
88 views

Hadoop in Ubuntu : Unable to create Passwordless SSH

I am learning Hadoop and trying to create the passwordless SSH following the procedure in define in the Book : Hadoop: The Definitive guide Configuring SSH Pseudodistributed mode is just ...
0
votes
0answers
40 views

Admin account directly login with no password required

Ubuntu 15.04 with admin "account + password" at the beginning of time every thing is OK and every time logging to the system it requires "account password" after approx. 5 days the system log in ...
0
votes
0answers
65 views

How to add and pass system password as a variable in a script

I have a script which asks for system/login password and pass that password to further processing. This is the gist of programm by which I am executing my script. read -s -p "Password: " password1 ...