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

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1answer
62 views

Is there a PDF viewer that supports password protected files (username and password)?

I need a pdf viewer that supports password protected files, I don't want to crack the files or anything like that I have the required information. The thing is that Document Viewer asks for a password ...
0
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1answer
57 views

I can't make Ubuntu ask for a password anymore!

I enabled auto-login some time ago and now I can't disable it. I've switched it at the user accounts options and it doesn't work! It says "off", but it's actually still on. And I also can't make ...
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0answers
67 views

su - Authentication failure; account accessible from root, not from user

I know there are tons of articles about authentication failure, but I think my case is specific. I have created groups and user oracle using this link: ...
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0answers
53 views

OpenVPN Username/Password

An OpenVPN server is installed on Ubuntu 14.04. This server is working for remote users to access local network. Each user has his own certificates generated by the CA (OpenVPN server itself). What is ...
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0answers
52 views

Authentication required before suspend

Since the last update of Ubuntu 14.04, when I press the sleep button in my laptop, a pop-up window appears with "Authentication is required for suspending the system". Password is not requested when ...
0
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1answer
48 views

How to turn off Automatic Login

I have turned on Automatic Login in Ubuntu 14.04. Now I cant install any updates as I cannot authorize. I tried to turn off Automatic Login, using the User Accounts screen in System Settings. But to ...
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0answers
29 views

Cannot reopen session after launching startx on UBUNTU

had an issue with Xorg so I launched startx from my terminal on ubuntu. It wasn't working well (only my wallpaper was on the screen after I launch the command). Then I force to shut down. My actual ...
0
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2answers
93 views

How to find the root password?

I'm using Ubuntu 12.04 installed with Wubi. My problem is I cannot connect to my wifi and I cannot see my files at data. It asks for the root password to login but I don't know it.
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23 views

Cannot execute sudo command without correct password (Even though my account has no password). Why? [duplicate]

My account on my computer does not require a password, and I have admin privelages. As I understand it, so I'm trying to run sudo [...] and getting the following result when leaving the password field ...
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2answers
36 views

Password Manager for Ubuntu with ports available for android

I need a password manager for Ubuntu (a program in which I can save all my password like site access, credit card codes, software licenses, etc.) that has also a version for android in order to have ...
0
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1answer
44 views

give temporary password to root ubuntu

is there a way to give root a temporary password? that is after a certain time or 'manually deactivate' the password will be deleted I want to give my colleague a permission to access server with ...
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0answers
18 views

Entering an encrytion phrase through a serial port connection

I am building an Ubuntu 14.04 stand alone server, text install. I have rerouted the console through serial port /dev/ttyS0. During boot I am getting the full boot up display through the serial port. ...
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0answers
14 views

Is there a way to have a user account to have different user password and ssh password?

I am connecting to an Ubuntu 14.04 server through SSH using a sudo user with a randomly generated password (very lengthy). Of course running a command with sudo requires me to enter that lenghly ...
0
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1answer
74 views

Stuck in a user log-in loop on startup (fresh install)

So I wanted to set up my Lenovo Flex 2-15D to dual-boot Ubuntu alongside the pre-installed Windows 8.1. I installed the Universal USB Installer from pendrivelinux.com, created a USB stick loaded with ...
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0answers
65 views

Upgraded Ubuntu 12.10 to 14.04.1 LTS and loging password won't work

I just upgraded my ubuntu version from 12.10 to 14.04.1 LTS via the use of a bootable DVD. In the install menu I selected the upgrade option so that my personal files from the old version would be ...
1
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1answer
71 views

smb mount via fstab mount error 5

Something weird happened in the last weeks don't know why, before it worked perfectly so here's my problem: I am mounting my NAS via fstab and a script which looks like this, taken from fstab: ...
0
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1answer
73 views

Xubuntu: Turn off password after suspend

On a new install of 14.10 beta, I'm getting prompted for my password when the laptop is coming back from suspend (ie closing the laptop lid). Weirdly, everyone else seems to have the opposite problem. ...
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0answers
23 views

alternative of dmg for ubuntu (to password protect folders)

I used dmg files on Mac osx to password protect files. I can create a password protected zip file. But decompression is very long for big files. On other hand dmg are so fast in mounting. So is ...
0
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2answers
100 views

I can't open secured PDF in Ubuntu (open password), but can in Windows XP

I can open a certain PDF in Windows XP like any other, but I can't open the same PDF in Ubuntu because I get asked for "open password". In XP Foxit reader shows that the file is secured for all ...
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0answers
14 views

Trying to change passwd in 12.04 [duplicate]

From GRUB v1.99 Recovery mode I enter ROOT and then "passwd username" I enter username and get "Enter new password" at this point my keyboard stops working. That is keys do not respond. If I enter ...
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0answers
19 views

Change your password on the command line 14.04 [duplicate]

How can I change my password on the command line with Ubuntu 14.04
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1answer
49 views

Asking for a sudo password in advance

I have some scripts for backing up data. Some of them need root access, so I use them with sudo. However, sometimes I get confused, e.g. for the mySQL backup, which also needs a mySQL root password. ...
2
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1answer
83 views

How to enable autologin but still require password

I am running Ubuntu GNOME 14.04, using gdm display manager and gnome-shell environment and I need to achieve the following behaviour: after boot, a selected user is automatically logged in, but a ...
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0answers
68 views

How do I unlock my SSH keys on login in Ubuntu Server?

I'm making a new server that will pull backups from multiple sources on a schedule, so I'd like it to connect via SSH using a key. Setting this up in Ubuntu 14.04 Desktop is trivial, you write the ...
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0answers
167 views

Samba will not accept my password

I have recently done a fresh install of Ubuntu 14.04lts. samba is installed and I can see the computers in my workgroup. I was able to transfer files from a Windows XP computer on my workgroup ...
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0answers
84 views

Administrative Password doesn't work after it changed by GUI

I am new to Linux. I have changed my administrative password by GUI (under user accounts setting). But Now its not accepting my password. It says wrong password try again. I am using Ubuntu 14.04 LTS ...
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2answers
90 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++ ...
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1answer
64 views

After Ubuntu 14.04 upgrade, two different lock screens

I've done a lot of searching around for a solution but only found results that were only similar to my problem and not quite exactly the same. My problem is that ever since I upgraded to Ubuntu 14.04 ...
1
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1answer
25 views

chpasswd -e not seting password correctly

I'm trying to set my password with echo "user:SOME_PASSWORD_STRING" | sudo chpasswd -e but when I do this, my password is not set to the correct password. The passwords I'm using are one's I've ...
4
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1answer
59 views

What are the allowed characters for a password?

I'm asking for the type of characters supported by user passwords (the passwd command precisely) Are spaces allowed? NULL characters (\0)? a subset of ASCII or more? If spaces are allowed do I need ...
1
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1answer
64 views

Updates Installed without asking password

Software Updater installed updates on my computer without asking any password. Is it normal or suspicious? It always asked for password in times before. I use Ubuntu 14.04 and I haven't tweaked ...
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0answers
45 views

Ubuntu 14.04 will ask current password twice

I manually set the Ubuntu account password expired then I logout and login again. The expect is that it will ask me to change my password. but why it will ask me to input twice for the current ...
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0answers
31 views

add authentication prompt to thunar file manager

I would like to know if there's a way to be asked for authentication every time I open thunar file manager. sort of like when you open synaptic package manager. I've tried cryptkeeper and other things ...
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0answers
19 views

How do I enter my passphrase correctly?

I replaced windows XP with ubuntu 14.04 and everything seemed to install/work fine. I chose to have a password required upon login. The problem is, my keyboard works fine until I reach the login ...
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0answers
9 views

Passwword is not reconized after sign on [duplicate]

Running 14.04 LTS. I am the only user and have administrative rights. When I go into terminal mode to increase space needed for updates, I am prompted for my password then it is not recognized. Also ...
0
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1answer
51 views

Logging in to an encrypted home directory after forgetting my password

I want to try Ubuntu and make it my permanent OS. Hence installed it alongside with Windows 8 on my HP laptop. I have faced lot of problems to make my system dual boot. I thought it was because lack ...
2
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1answer
46 views

Multiple hosts password problem using mpirun

So I am running a parallel c++ program by sending jobs from an Ubuntu machine to remote hosts (also Ubuntu), the command line I use on the terminal is something like: mpirun -np 4 --host host1,host2 ...
0
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1answer
258 views

How to reset my password in ubuntu 14.04

I recently installed Ubuntu 14.04. I am not able to install any software because it is not accepting my password. However I am able to log in to my account using the same password on my pc.
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3answers
128 views

Never ask me for passwords [duplicate]

I'm using Kubuntu 14.04 and I'm asked for password when: Using sudo in terminal. Login. Installing/removing/updating programs with Muon. KWallet initiates or adds a password. I don't want to write ...
2
votes
1answer
360 views

User cant access samba from windows 8.1

[Open_Share] path = /home/brady/open_share available = yes guest ok = yes valid users = brady read only = no browseable = yes public = yes writable = yes force user = brady create mask = 0640 ...
0
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1answer
35 views

After logging in my password does not work

I'm running a fresh install of ubuntu 14.04 and I've got a strange problem. When I login to the GUI I successfully get to my desktop and can use everything fine, but as soon as I try to sudo anything, ...
2
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0answers
28 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 ...
0
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0answers
20 views

VPN not remembering password

The VPN will not save the password in dialog box, so it needs to be re-entered each time! Often despite having re-entered and re-saved the password it will still not connect until the machine is ...
0
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0answers
36 views

14.04: How to ssh/scp as root with NO password prompting? [duplicate]

We upgraded from 12.04 to 14.04. We have a dozens of processes that perform automation tasks for us and we use root with ssh/scp. After the upgrade root couldn't ssh/scp into the servers at all. We ...
0
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0answers
54 views

Ubuntu 14.04.01 user login not possible

I upgraded to the new ubuntu version, in the middle hade a power failure...so i followed these instructions Ubuntu 13.04 to 13.10: Filesystem check or mount failed The update is now complete and at ...
-1
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1answer
49 views

AUTHENTICATION PASSWORD UNKNOWN [duplicate]

I have ubuntu 12.04 LTS and I do not know my authentication password due to which i cannot install any software. Its urgent. Please tell me a solution and not a suggestion. In case , if I have set the ...
0
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0answers
6 views

Cannot enter user account in Ubuntu 14.04 LTS [duplicate]

Recently I had a few problems with my laptop. First, after a reboot cuz the bluetooth doesn't started, after the dots screen appeared, the screen just got black. Using Ctrl+Alt+F2 I could get back the ...
0
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0answers
44 views

Sudo is working without password? Is this a bug? [duplicate]

sudo commands are running without any passwords. I had not made any setting to make something like "sudo without password" This view show how sudois running without prompting for password ...
2
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0answers
26 views

How to change pptp vpn remote password 12.04

I'm looking for a way to change my pptp VPN connection password on the remote server, is there any way to do this? I know that from windows if the password expires the connection automatically prompt ...
0
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1answer
303 views

DigitalOcean droplet root password not accepted for client, but works for console

I have an Ubuntu 14.04 droplet with PubkeyAuthentication set to yes and PermitRootLogin set to no. Since I created it, my pubkey has worked fine. For some unknown reason today it's not accepting my ...