Questions about authenticating wireless connections, SSH keys, or passwords in Ubuntu.

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0
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1answer
71 views

How to stop having to enter password twice to unlock the screen?

Recently when I lock my Ubuntu 14.04 account I have to write my password twice in two different places before getting in. This happened recently. I think I might have installed some stuff that I saw ...
-1
votes
0answers
12 views

Please some help with authentication and apache 2.4

running latest ubuntu 14.04 just installed apache 2.4 and to my dismay authentication doesnt seem to be working and theyve changed /var/www to /var/www/html so i adjusted my usual default under ...
0
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0answers
61 views

How to fix authentication password, when password is rejected?

When I try to upgrade, I am prompted for authentication password. I enter the password I have set, but I receive a message saying it is incorrect. The same thing happens when I am prompted to "unlock" ...
1
vote
0answers
31 views

How to change proxy settings with authentication?

I am using Ubuntu 13.04 and having WiFi connection with proxy settings and authentication. By following some tutorials I successfully changed /etc/apt/apt.conf with the values Acquire::http::proxy ...
0
votes
0answers
16 views

ssh is disconnecting when tacacs+ is enabled

I am using ubuntu 12.04 and the openssh-server Version: 1:5.9p1-5ubuntu1.29. I'm using a remote tacacs+ server for authentication and authorization. When I login through ssh, tacacs+ authentication ...
2
votes
1answer
21 views

Auto creating accounts

I'm wondering if there is any way to configure Ubuntu or install special software which could allow to automatically create user account when user login first time (without any special privileges, ...
1
vote
2answers
59 views

Do logins by the gdm (or lightdm) user in auth.log mean my system is breached?

Please look at this auth.log (from Ubuntu 14.04) I have provided and tell me who this gdm user is and why there are all these unauthenticated logins? I am freaked out; please help! Here's the ...
0
votes
0answers
28 views

CUPS isn't allowed to access SSSD for authentication

I'm running Ubuntu 14.04. The CUPS server requires authentication for all print jobs. If I send a job as a domain user I get the following errors. Any help would be appreciated. I can't find anything ...
0
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0answers
6 views

How to get password working again after upgrade? [duplicate]

Installed Ubuntu 14.04, but my password doesn't work now. This is on an HP laptop PC that accepted my password before the upgrade.
0
votes
1answer
55 views

SSSD password change not working with LDAP backend

Environment info: AD on win 2k8r2 Ubuntu 12.04.5 LTS SSSD v1.8.6 everything is in the same vlan I have an LDAP / SSSD solution in use on our Ubuntu servers. The auth process works correctly ...
1
vote
1answer
45 views

How to make sudo use a separate password?

Using Ubuntu 14.04, I have 2 accounts: Account A (first one set up) with Password 1 Account B (second set up) with Password 2, when updating software in Account B, I use Password 1 to authenticate. ...
0
votes
1answer
20 views

How to change the default position of ~/.ssh/authorized_keys

My VM server is installed ubuntu 12.04 and connected to a storage (not sure about the system of this storage). I have change my home directory to the storage. However this storage could be assessed by ...
2
votes
1answer
109 views

Can't SSH in as root

I'm using the default installation of openssh-server for my Ubuntu 14.04 server. I can connect through the console as root like normal, with my username and password. When I try to SSH with the same ...
0
votes
1answer
45 views

Download apps in ubuntu software centre

I am having a problem authenticating in Ubuntu 12.04. I have no password. I have bought my computer online. There is no password when I log in. It's showing me unsuccessful password. So I cannot ...
1
vote
0answers
8 views

fprint-demo casusing authentication failure

I installed fprint-demo in Ubuntu 14.04 unfortunately I did not setup the finger prints and when I try to log in; its denying my password. I tried to remove the password in recovery mode: rw -o ...
0
votes
0answers
16 views

Get Access Problem as admin user

I want to access "sudoers" file and also access "su -" but I fail and get following error please check terminal output that I have tried. I am m-usman(admin) but not allow to edit or access ? :( ...
0
votes
0answers
7 views

I dont know how to overcome authentication problem with my old password being unrecognized [duplicate]

I am unable to change my admin password. Its showing 'authentication is required to change the data'. And its asking for a password. Its not working with my so set password. please help me..
-2
votes
1answer
64 views

Please help me disable authentication! [duplicate]

This is very annoying. I don't want to sound like a drag or anything to you security people but I switched over from windows and everytime I install or do something I need to type a password. Is there ...
2
votes
1answer
38 views

Not able to authenticate during sofware installation

When I try to install a package through Software Centre, an authentication window pops up. The authentication window is like this: But the window disappears immediately and I am not able to ...
1
vote
0answers
21 views

Why does sudo sometimes asks for a different sudo user?

i have all my boxes setup to authenticate against openldap. when i logon with the local user (localmin) and run a command like; sudo service smbd restart it sometimes asks for the password of ...
0
votes
0answers
8 views

How to solve the 'NODATA' (does the network require authentication?) problem? [duplicate]

This message shows up every time I try to update or upgrade from terminal. The full msg is : E: GPG error: http://dl.google.com stable InRelease: Clearsigned file isn't valid, got 'NODATA' (does the ...
0
votes
0answers
34 views

Ncsa_auth squid on Ubuntu installation authentication

I installed squid on Ubuntu Server 12.04. worked smoothly. After Transparet mode to run iptables-t nat-A POSTROUTING-s 192.168.2.0/24-o eth0-j MASQUERADE I have run. and I got out to the internet. ...
1
vote
0answers
35 views

I have upgraded my system from 12.04 to 14.04 after restart when im tried to login authenication error came

I have upgraded my system from 12.04 to 14.04. After restart, when I tried to login, an authentication error came. After that, I used sudo apt-get install -f and rebooted the system. I didn't get any ...
0
votes
1answer
37 views

Administrative password doesn't work when I try to install applications

I have a problem. When I try to install something from the software center it tells me my password is incorrect. In my account, I just changed my password to 'None', since I don't want to be prompted ...
1
vote
0answers
17 views

sshd_config file is being overwritten on reboot

I need an AWS server to accept password authentication and whenever I remove the hash and set PasswordAuthentication yes After reboot or create image and launch a new instance, the # is added back ...
2
votes
1answer
83 views

Whenever I delete Jabber and Yahoo from my online accounts list, they reappear

Whenever I delete Jabber and Yahoo from my online accounts list, they reappear after a restart. Because of this, whenever I open login, I get a large number of popups asking for my Yahoo password: ...
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?
2
votes
1answer
33 views

How can I identify the program that has written information to a log file?

I recently got a message that something had failed to sudo on my Ubuntu laptop. At the time, I don't believe I was running anything that would need sudo. The messages that appeared in ...
1
vote
1answer
83 views

Authentication failure while updating

After it downloaded the file, it reports an authentication failure and skips to the next task. After finishing all downloads it reports that I should check my internet connection. Just to make ...
0
votes
1answer
46 views

Global sudo session in ubuntu

Is is possible to keep the sudo session for sometimes? I mean when you open synaptic, each time you have to authenticate. In a single terminal, sudo session exits for a specific amount of time. You ...
1
vote
0answers
18 views

What encryption and authentication algorithms does vsfpd use by default?

I have followed this guide and was able to transfer files using SFTP, I want to know the encryption and authentication algorithms used by default in that file transfer.
0
votes
0answers
75 views

Evolution email client authentiaction

I installed Ubuntu 14.04 on my PC and then installed gnome-core as a desktop environment. And then installed evolution as my mail client, but after configuring it and start using it, it always ...
1
vote
1answer
1k views

Proxy authentication with terminal Ubuntu 14.04

I would like to access the internet to update files etc. from the terminal on a secured proxy network. I've already tried the following: Adding to /etc/apt/apt.conf, /etc/apt/apt.conf.d/01proxy, ...
3
votes
1answer
87 views

How can I use ldap authentication with full disk encryption?

I'm evaluating (x)ubuntu client for my companies software developer. We must use full disk encryption because of software, which doesn't save their files in /home (like databases). The company uses ...
0
votes
0answers
69 views

Ubuntu 12.04 - SSH hang at reading configuration

Hi fellow Ubuntu users! I currently have a problem when connecting to remote computers at work. Here is the log : OpenSSH_5.9p1 Debian-5ubuntu1.4, OpenSSL 1.0.1 14 Mar 2012 debug1: Reading ...
0
votes
1answer
46 views

Authentication with admin password problem [duplicate]

I have read quite a few of the answers to password problems but am completely new to Ubuntu and can't figure this out. I bought my computer (a Dell vostro) a few days ago, and I was trying to install ...
0
votes
1answer
63 views

PAM Module & nsswitch.conf

As i know, there are two authentication schema available on linux. PAM auth modules and, /etc/nsswitch.conf file When user logs in, which one take the precedence.?
1
vote
0answers
28 views

Ubuntu asks for permission to add a printer, but nothing works

I am trying to install my HP LaserJet Pro 400 color m451nw, got it all worked out using the hplip open-source program (hplip-3.14.6) until I get to the very end where I verify and setup the device and ...
0
votes
2answers
63 views

Why does Ubuntu keep asking me for another super user's password?

I have two users: misha-local (the first user I created when installing Ubuntu) misha (a user authenticated against an LDAP server) I'm logged in as misha. misha@misha-antec:~$ whoami misha ...
0
votes
0answers
73 views

Using Port 587 for Secure Submission

Testing from swaks, mail is delayed indefinitely. I believe that the local mail server is configured correctly, as per the ehlo responses: thufir@dur:~$ thufir@dur:~$ telnet localhost 25 Trying ...
1
vote
1answer
813 views

Error Password: chsh: PAM: Authentication failure when try to install Oh my zsh

I try to install Oh my zsh. After install zsh (sudo apt-get update && sudo apt-get install -y zsh) Then I install sudo apt-get install -y curl then install git. the problems occurs ...
0
votes
0answers
13 views

Need to reset Authenic Password! [duplicate]

I'm having this extremely frustrating problem right now! I bought a HP Mini Notebook 110-1025 from someone and before she sold it to me she did a system recovery and used this Ubuntu program instead ...
0
votes
0answers
43 views

After ldap and pam installation I cannot log in my computer

after ldap (Server) and pam (client) installation I cannot log with my user or my root in my computer. Maybe I configured wrong in pam. But I know password for root and ldap admin. After reboot I ...
0
votes
1answer
38 views

ssh pair key authentication problem

I have a problem with public and private key authentication. I do this steps and then, public-key based doesn't work. 1- generate a pair of private and public key (RSA) using the following command: ...
2
votes
0answers
299 views

Ubuntu Server (14.04 LTS) System-Wide Socks5 Auth Proxy

I have recently switched to the server version of Ubuntu 14.04 LTS and am not aware of a way to apply a system-wide authentication socks5 proxy so that all traffic on that computer goes through the ...
1
vote
2answers
82 views

Username/Password Authentication Failed. dpkg: error: requested operation requires superuser privilege

gichan02@gichan02-Latitude-D520:~$ wget https://private-ppa.launchpad.net/commercial-ppa-uploaders/xojo/ubuntu/pool/main‌​/x/xojo/xojo-bin_2013.41-0ubuntu1_i386.deb; dpkg -i xojo-bin*.deb --2014-05-28 ...
0
votes
0answers
22 views

How to disable multiple authentication?

Ubuntu's policy of reauthenticating the user every few minutes for sudo commands is a significant productivity drain, especially if you have a long password. I realize that autologin can get rid of ...
0
votes
1answer
1k views

Ubuntu 12.04 GPG error: http://archive.ubuntu.com precise Release: The following signatures were invalid: NODATA 1 NODATA 2

I know this is asked often but nothing seems to work for me. Every time I try to update I get the following: sudo apt-get update Get:1 http://archive.ubuntu.com precise Release.gpg Get:2 ...
2
votes
0answers
308 views

How to install git server with apache authentication on Ubuntu 14

I trying to install git server on Ubuntu 14 following these steps: www.jmuras.com I made a little change when creating git.conf and symbolic link cause goes on different folders for Ubuntu 14, i did ...
2
votes
1answer
182 views

How to authenticate a startup disk image?

The process of creating a startup disk on Ubuntu looks really vulny to me. It's scary in a number of ways. Please either (1) refute my assertions with contrary evidence or (2) tell me how to avoid ...