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

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-2
votes
1answer
93 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
53 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
27 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
117 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
38 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
47 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
34 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
136 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
153 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
139 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
115 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
21 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
128 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 ...
4
votes
1answer
7k 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
120 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
131 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
72 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
180 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
43 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
74 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
207 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 ...
4
votes
1answer
3k 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
60 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
77 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
392 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
129 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
24 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
3k views

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

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
824 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
248 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 ...
1
vote
0answers
76 views

What happened whith software-center - authentification failed? [duplicate]

2014-05-04 16:00:34,847 - softwarecenter.backend.zeitgeist_logger - WARNING - Support for Zeitgeist disabled 2014-05-04 16:00:35,910 - softwarecenter.ui.gtk3.app - INFO - setting up proxy 'None' ...
0
votes
0answers
65 views

while configuration of samba for ubuntu 12.04 client acess is denied

First i was login as root sudo su - apt-get install winbind samba Add the following lines to the /etc/samba/smb.conf in the [global] section. security = domain netbios name = UBUNTU_01 password ...
1
vote
2answers
324 views

Administrator password

I have recently installed Ubuntu 14.04 on my laptop and when I enter the admin password (it is only me using the system) I get the message that the password is wrong....I know that this is not the ...
0
votes
0answers
474 views

Why won't Ubuntu let me log in?

I installed Ubuntu 14.04 but after installation I cannot log in with my password. I tried the tried-and-tested route of resetting a password (rebooting into root console, remounting / with rw, ...
0
votes
0answers
62 views

how to join ldap client 12.04 to server 8.04

apt-get install libpam-ldap libnss-ldap nss-updatedb libnss-db nfscommon nscd ldap-utils You will again be asked a bunch of questions LDAP server Uniform Resource Identifier: ldap://ldap.example.com ...
0
votes
0answers
87 views

Clean installed ubuntu 14.04. Ran into some authentication problems

This was a clean install. I wiped everything even my windows partition. HP 2000 notebook, E2 vision HD AMD/ATI processor using the proprietary driver and fully up to date. 1) Using software updater, ...
0
votes
0answers
150 views

Login names in ubuntu 14.04

I am using pbis open (used to be likewise) to authenticate against an active directory. This worked fine in 12.04 with my username (ian.collins). I installed a fresh 14.04 and the latest pbis open. I ...
0
votes
1answer
135 views

SSH “Permission Denied (Public Key)” Automatically re-occuring problem

I have a headless server with (until recently) working SSH and public key auth. I deactivated passwords and had a problem resembling the one in this thread, ie. upon SSH-ing into my server I get: ...
1
vote
1answer
2k views

authentication required by wifi network ubuntu 14.04

Whenever I connect to my wifi network, this annoying 'authentication required by wifi nework' window pops up, with my wifi password in it. All I have to do is to press the Connect button. Still I ...
1
vote
1answer
621 views

Authenticating error with ubuntu 14.04 LTS

< Problem: Just as I upgraded my ubuntu 13.10 to 14.04 LTS. I couldn't pass keyring and bash authentication. I can login in recovery mood for both root and my account, but that's not the case in ...
0
votes
1answer
279 views

LDAP authentication: not able to login through GUI but able to login from console

I am building a LTSP environment with LDAP authentication. I have configured the LTSP,LDAP server and client perfectly. I checked with getent passwd command in LTSP/LDAP client. I can see my LDAP ...
0
votes
0answers
47 views

Ubuntu 12.04 Authentication is broken

I'm running Ubuntu 12.04 LTS on VM. It was fine till last friday. There were some updates available, some were related to security stuff, I don't remember exactly. After that my system is broken. I ...
0
votes
1answer
26 views

Can I secure a webpage with something other than username/password

I want to secure a webpage, but I want something better than username and password. Is there any public key style authentication for a webpage? I'm not concerned with the usability / convenience of a ...
5
votes
1answer
780 views

I get Authentication is needed to run `/usr/bin/dropbox' as the super user

in a system popup window on startup. Anyway to avoid this? fwiw I authenticate ok with my pw. I think this may have started after my recent upgrade from Ubuntu 12 -> 13
1
vote
0answers
95 views

PAM authentication using ssh key instead of password

When I try to use chsh to change my default shell, I get prompted for my user password. The problem is I log in using my SSH key and do not have a user password - by design. Yes, I can set a ...
0
votes
0answers
105 views

WiFi authentication problem - a common issue?

I have a small form factor PC that I rescued from being thrown out by work, and I had the idea to try Linux on it (I am experienced with hardware etc. but completely new to Linux). It's an Ideq 210v ...
5
votes
1answer
638 views

Stop Ubuntu asking for password to mount second drive

Whenever I turn on my machine and browse to the second hard disk in nautilus it asks me to authenticate to mount the drive. I can find guides on how to turn on this behavior, but not to de-activate ...