0
votes
1answer
40 views

Connect to my College's WPA from Ubuntu 14.04 LTS

I have Ubuntu 14.04 LTS, and am running it on a Sony Vaio VGN-CR12OE. It is the only operating system. I am trying to connect to my college's WPA WiFi. My settings for this WiFi connection are as ...
0
votes
0answers
25 views

How can I lock Seahorse GnuPG Keys?

since not long ago I've started to use seahorse to manage my encryption keys, and at the moment I'm finding myself a bit baffled about what it appears quite a security hole of the system... In fact, ...
1
vote
2answers
55 views

What should I do to avoid my roommate from changing my password through using system recovery mode .?

He did this last time when I left my laptop at room. Opened the system recovery mode from advanced Ubuntu options and changed the password using 'passwd usrname ' command.Is there anything I can do ...
1
vote
1answer
47 views

Confused about the security of ubuntu (Linux)

Assume I have a laptop with ubuntu installed and two users abc and root. Both users are password protected. It is possible to reset root password using live CD or USB using chroot which would mean ...
26
votes
1answer
1k views

How to know if a authenticate box is real or fake?

For example, someone creates a fake Authenticate dialog to get my root password. How to know if it is real or fake?
0
votes
0answers
206 views

Create x11vnc password file with both admin and viewonly password on 12.0.4LTS

Using Ubuntu 12.0.4 LTS and need to enable x11vnc access with admin and viewonly access based on which vnc password is supplied. The x11vnc server gets started out of /etc/lightdm/start via: ...
2
votes
1answer
44 views

Security benefits to force users to change their password at first login

When I consider chage command, I found that I can force users to change their password at first login with following command: $ sudo chage -d 0 <user-account> Has this work any security ...
1
vote
2answers
48 views

Reusing old passwords

pam_cracklib module is capable of consulting a user's password "history" and not allowing them to reuse old passwords. What security risk is in reusing old passwords? If this work is useful, how many ...
0
votes
0answers
13 views

I've lost my secuity password [duplicate]

I've lost the main password to my computer and can only boot from C.D how do I reset it to access my computer from itself?
0
votes
0answers
17 views

How to save kftpgrabber site in kwallet

I'm researching for a more secure FTP client which is more securelely stores site details like passwords, than Filezilla and found kftpgrabber fits with my need. However for get the most out from ...
0
votes
0answers
219 views

Unknown failed password logs

I decided to install steam on ubuntu 12.04 from the official repo. However after the installation(which required me to enter my password a second time in a terminal to install required updates) I ...
0
votes
2answers
399 views

How do I set a password for guest login? [duplicate]

I'd like to set a password for the guest account. How can I do this? (This question is not answered under the similar question in this forum, see below.) The last time this was asked on this forum ...
0
votes
1answer
34 views

Can't work out security [closed]

I installed Ubuntu on puter I am the only user I alone use. I was trying a to find out how to repair hardware faults. Surprised to find I was not the owner and that there is a password that locks me ...
0
votes
1answer
1k views

How to set Grub Password

Red Hat Linux has grub-md5-crypt for setting up a grub password. How to do the same in Ubuntu 13.10 ?
0
votes
1answer
39 views

how to stop administrative password change

It is extremely easy in ubuntu to change the administrator password by using the recovery console and dropping to root. Is there any way to stop a root user from changing the administrative password?
1
vote
0answers
81 views

How to unlock multiple encrypted partitions on boot?

I have two encrypted partitions sharing the same passphrase. I would rather not enter the password twice plus the login password. How can I unlock both partitions at once? Maybe even only enter one ...
1
vote
0answers
59 views

Can a weak Ubuntu user password be a risk for ONLINE security?

Can anyone gain an unauthorized remote access to my Ubuntu machine? Does having a strong user password really helps prevent this? Or firewall just doesn't let anyone in by default, regardless of the ...
3
votes
2answers
346 views

Which is a safe way to record Firefox passwords in Gnome Seahorse Keyring?

Searching for answers about ways to record Firefox passwords in Gnome Seahorse Keyring vault, I found severals possibilities: Firefox Gnome Keyring firefox addon from https://github.com/ in this ...
4
votes
2answers
176 views

Will my data be safe if my laptop is stolen when there is FDE and auto-login?

My SSD supports Full Disk Encryption (FDE). I have enabled FDE and set a password in BIOS. In case my laptop is stolen or lost, I want nobody to be able to get my data. Is it now secure to allow ...
2
votes
0answers
127 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 ...
-1
votes
1answer
624 views

How can I prevent the hacking of my wired and wireless networks by tools like feedingbottle? [closed]

I am network administrator and I am always worried about network security as I know people use different techniques of hacking to penetrate wireless and wired networks. Recently I came to about ...
1
vote
1answer
273 views

Can I change user in the Unity interface without having to type password when changing back?

First of all, let me emphasize that I am talking about my home computer that I use for personal use. I have two accounts in Ubuntu: one for me, one for my wife. We don't use separate accounts to ...
2
votes
4answers
10k views

Why does `sudo passwd root` reset my root password? Is this a security risk?

Both in my ubuntu desktop host and virtual machine. I have't login as root for about a month, during which I upgraded the kernel. I found my root password doesn't work anymore. However, by using sudo ...
2
votes
0answers
58 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 ...
3
votes
1answer
1k views

How to enforce company password complexity in 10.04?

I need to configure a Ubuntu 10.04 server to follow a strict company password policy that specifies the following: at least one upper case at least one lower case at least one digit at least one ...
1
vote
1answer
108 views

Ubuntu “1 time password on login” solution [duplicate]

Possible Duplicate: Why is it bad to run as root? I recently fully switched from Windows into Ubuntu. And of course I loved Ubuntu. But the most annoying thing is, system requires password ...
1
vote
0answers
60 views

Security aspects of home dir encryption [duplicate]

Possible Duplicate: Is there a security risk if a password can be reset easily? Changing the login password will automatically make an encrypted home directory re-accessible, as PAM takes ...
0
votes
0answers
36 views

Very confusing administrations and password security [duplicate]

Possible Duplicate: How do I reset a lost administrative password? I have recently suffered an annoying problem which is really bugging me at the moment. When I start Ubuntu, I can login ...
1
vote
1answer
3k views

Sync KeePassX with KeePass2

Simply put: In Ubuntu I am using KeePassX and in Windows KeePass2. In am not able to export/import passwords from one to another. I would prefer to use the same database, but I don't really know ...
-6
votes
1answer
2k views

How to sudo visudo without a password, remove all prompts for password [closed]

Websites tell me to use sudo when I have no password, usually tell me one of two things. It is bad security Or use 'sudo visudo' and the %admin ALL=(ALL) NOPASSWD: ALL line I would like to not ...
0
votes
1answer
80 views

How did all the passwords get in my login keyring?

In my Passwords and Keys application (Seahorse) I have a "login" keyring. Within that are a many keys. How did they get there? What application put them there? I use Chrome with Lastpass extension, ...
5
votes
2answers
771 views

Precautions during SSH [duplicate]

Possible Duplicate: How can I audit users and access attempts to SSH on my server? I recently had to give away my Ubuntu 12.10 root password to one of my friends so that he could SSH into ...
1
vote
1answer
190 views

Enabled root password and have System Policy and sudo problem

I enabled the root password a while back. But not three days ago. I'm using Ubuntu 12.04 with latest updates. My laptop is Vostro 3500 For about three day ago, I saw the symptoms. And those are, ...
4
votes
3answers
3k views

Is there a way to lock my browser with a password?

It would be OK if it was only with my login password, but I would like to lock both midori and Firefox so that they cannot be used without entering a password. I'm running 12.04.
2
votes
1answer
206 views

How do I create one user without key authentication?

I've completed the following steps: I have configured Ubuntu server with Key authentication and it is working fine. I have disabled password authentication for key authentication to work. The server ...
0
votes
2answers
76 views

Security - Is there a tool for Gmail that integrate in Desktop and does not ask my password (Oauth?)

I am a new user of Linux and I love it so far. I am also a great fan of Google products and I was searching for a Gmail app that could tell me when I have unread emails. Unfortunately, all these ...
1
vote
1answer
209 views

Having an Issue in restricting length of password

I am trying to place a restriction on my ssh box to require a password of a min. length of 16 character and a max. of 30. I was following the Password policy section, in the official user ...
0
votes
1answer
710 views

Completely eliminating all password prompt [duplicate]

Possible Duplicate: How to disable all password prompts? I've looked all over Google for a way to disable those annoying password prompts. So far the only one that's worked is editing the ...
8
votes
2answers
6k views

How do you set requirements (such as minimum length) on passwords?

Is there any way to set up minimum passcode requirements, such as a minimum length, requirement of mixed case alphanumerics and at least 1 symbol in the passcode, and enforce that at passcode changes? ...
0
votes
1answer
103 views

Elevation issue password always wrong?

ubuntu Newbie - I install OS using one account and then later created a second account made administrator with auto login and no password, then I logged in using new account and deleted old account. ...
1
vote
0answers
65 views

How do I securely store passwords? [duplicate]

Possible Duplicate: Password Management Applications? How do I securely store passwords in Ubuntu? Are there any tools available for this?
37
votes
6answers
47k views

Is there a way to password protect individual folders?

Let's say that I have a folder, within my Documents folder, that has files I want no one to access without a password. Is there a way to lock down that folder so that it's password protected / ...
15
votes
2answers
18k views

How can I allow SSH password authentication from only certain IP addresses?

I'd like to allow SSH password authentication from only a certain subnet. I see the option to disallow it globally in /etc/ssh/sshd_config: # Change to no to disable tunnelled clear text passwords ...
3
votes
1answer
87 views

Which application is responsible for accepting passwords when entered in diffrent keyboard layout?

I just noticed that when I'm prompted to enter my password to unlock the system, no matter what layout I choose (Persian or English) as long as I press same buttons that resembles my password in US ...
6
votes
1answer
3k 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 ...
0
votes
1answer
2k views

Protecting samba shares with ubuntu 10.04

I'm using a linux distribution based on Ubuntu 10.04 (Backtrack 5 R1). I successfully managed to create a samba share that is read/write accessible to everyone in my network. I want to protect this ...
38
votes
5answers
4k views

How can I prevent someone from resetting my password with a Live CD?

Recently one of my friends came over to my place, within 15 minutes he hacked my account using a Live CD and reset the password in front of me. I was baffled to see such a thing. Please guide me to ...
2
votes
1answer
96 views

Security exploits affecting login?

On ubuntu 10.04, I choose System > Disconnect > Swich User, then at the login screen I can click Ctrl+Alt+F4 to get a command line over a black screen, & then click Alt+F7 to redirect back to my ...
9
votes
1answer
275 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
2answers
1k 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 ...