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

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0
votes
1answer
214 views

Proxy settings not working in ubuntu12.04 but working fine with windows 7

Proxy authentication settings are set properly in the /etc/apt/apt.conf and even in the network settings. But the sudo apt-get update command gives an error "something wicked happend in resolving ...
4
votes
1answer
5k views

MongoDB super-admin authenticates fine but still gets unauthorized query errors?

I have started using MongoDB with authentication. As per the documentation I used the localhost exception to create an admin user with the single role of userAdminAnyDatabase. That all went fine. ...
3
votes
4answers
3k views

Not able to login through GUI in Ubuntu 12.04

I'm unable to login through GUI. On typing the correct password, I get a black screen and back to login screen. However, when tried with tty1 I was logged in. Then I tried reinstalling lightdm and ...
1
vote
1answer
1k views

Cannot ssh with publickey into Ubuntu 13.04 cloud instance

I'm running Ubuntu 13.04 in an OpenStack instance. When I created the instance, I specified a keypair, and I may ssh into the box with the command: [laptop]$ ssh -i keypair.pem ubuntu@my-instance ...
1
vote
1answer
1k views

Authenticate in ubuntu

I have a administrator privileges in Ubuntu 12.10 but when I try to install some applications Ubuntu requiere authentication, I write my password, but doesn't work somebody could help me?
0
votes
1answer
195 views

Pam face authentication terminal install went wrong

I was following the steps from this link http://lkubuntu.wordpress.com/2011/06/28/pam-face-authentication/ I was trying to set it so I could use my webcam and face recognition to unlock my computer. ...
0
votes
1answer
823 views

What is the authentication password?

I'm very new to ubuntu, and i just installed it on my new chromebook acer c7. I never made an authentication password, and when I try to download something, it asks me for it. Please help!
2
votes
0answers
322 views

Unable to access limited access folder from Windows 7 PC

I am a complete novice at Ubuntu and Linux systems in general. I have wanted to play around with the OS for years and finally set up a spare computer and installed Ubuntu 12.04.2. My goal is to make ...
3
votes
2answers
19k views

OpenVPN - Password Authentication Only

When using the OpenVPN Client for Windows, I can log into the OpenVPN server with only a username and password. I can't figure out how to make the same thing happen in Ubuntu. It seems that some kind ...
2
votes
0answers
595 views

How to have cntlm configuration per user?

This tutorial http://zipizap.wordpress.com/tag/cntlm/ suggests configuring cntlm using the file etc/cntlm.conf. It works great, but it means that all users logged to the machine will be using the same ...
1
vote
2answers
10k views

su: Authentication failure

I have downloaded the Eset Nod32 Antivirus from its website, and I got a eset_nod32av_64bit_en.linux file. I have right-clicked on it, Properties - Permissions, and checked the Allow executing file as ...
0
votes
1answer
46 views

Cannot authenticate to SBS 2003

I am trying to connect my machine to my work's entirely windows network and I am having a few issues: Whenever I try to access the server, the authentication dialog just keeps popping back up. I ...
0
votes
1answer
205 views

Delay on ssh authentication

I've just installed 12.04.2 server amd64 in VMWare Player and noticed that there is a 3-5 seconds delay after I put the password and before the shell appears. The same happens when I try to connect ...
1
vote
1answer
1k views

authentication method for likewise to join a domain

I installed likewise and joined my an active directory domain. I'm finding it's a bit unclear on how the default authentication works. Do I have to do any extra configuration to enable kerberos? If I ...
1
vote
1answer
4k views

connect to another proxy through squid

i have an HTTPS proxy outside which uses username/password for authentication and i want to configure squid on ubuntu 12.10 to direct all connections which are not in it's cache to that proxy. how can ...
2
votes
0answers
386 views

Annoying Wireless Authentication Prompt [duplicate]

When my internet connection fails and tries to reconnect (Which happens quite frequently on my crappy Uni Wireless) the following prompt pops up every 20-30 seconds: I consider this to be a major ...
0
votes
0answers
71 views

Cannot install google chrome - package cannot be authenticated [duplicate]

I have a puppet setup which adds the google package signing key, the google repo and then tries to install google-chrome-stable. It has been working fine on many servers for the past 6 months until ...
0
votes
0answers
20 views

help with authentication password [duplicate]

When I try to install or remove software it asks for an authentication password but I don't have a password and never set one so how do I reset the password
17
votes
12answers
70k views

Trying to do ssh authentication with key files: server refused our key

I'm trying to setup ssh authentication with key files in stead of username/password. The client is a Windows box running PuTTY and the server is a Ubuntu 12.04 LTS server. I downloaded puttygen.exe ...
4
votes
4answers
527 views

How can I prevent a user from changing their password? [duplicate]

I want to prevent a user from changing their own password. Additionally, if possible, I want to prevent them from changing it via sudo.
2
votes
1answer
317 views

I can authenticate but can not login in using my password?

Here is my story : there were days when I had my password and everything was fine. I removed my password : Opened User accounts Unlocked it by pressing "Unlock" button Selected my username (btw, I ...
6
votes
1answer
5k views

Wifi only accepts passwords of 5 or 13 characters

Installed Ubuntu 13.04 and when attempting to connecting to a home wifi network, the connect button is only click-able with passwords of 5 or 13 characters. Is there a fix?
5
votes
1answer
1k views

13.04 Packages cannot be Authenticated

I am unable to install updates because the following Packages cannot be authenticated: libudev1 libxml2 libasound2 google-chrome-stable libgudev-1.0-0 libtiff5 linux-image-3.8.0-19-generic ...
5
votes
2answers
18k views

How to use Google Authenticator with OpenVPN server on Ubuntu 12.04

I have a working OpenVPN system on Ubuntu 12.04 and I'd like to add Google Authenticator for extra security. This is my current openvpn config: dev tun proto udp port 1096 ca ubuserv04-ca.crt cert ...
0
votes
1answer
2k views

Nginx Basic Auth and subfolders

I have a problem with subfolders in a basic auth procted folder. In the protected folder i have a folder named phpmyadmin, which contains phpmyadmin. Im not able to run phpmyadmin, when basic is ...
5
votes
2answers
4k views

OpenSSH Two Factor Authentication

I'm using Ubuntu Server 13.04 and want to use OpenSSH for sftp. I have everything set up and the only thing not working is the Two Factor Authentication. Currently it asks for a password or the public ...
2
votes
2answers
6k views

Authentication in wireless network

I am authenticating a network using WPA2, but not working (authenticates then off) OS: Ubuntu 13.04 Wireless network card : Intel Corporation Ultimate N WiFi Link 5300 $dmesg: [ 1248.966666] wlan0: ...
1
vote
1answer
5k views

NIS client authentication

How to configure the nis client on Ubuntu? And how to configure system authentication? There is no option for system authentication like system setting system info in my system etc. When ever I go to ...
11
votes
3answers
5k views

Security warning from Facebook in Chromium

I am terrified. Every ten minutes Chromium pops up with a tab stating: Success SECURITY WARNING: Please treat the URL above as you would your password and do not share it with anyone. Very ...
1
vote
1answer
96 views

Difficult Problem - I'll Try To Explain [duplicate]

OK, so my husband and I have had Ubuntu 13.04 I believe for about a week now, or whenever they released it. Yesterday, turn on the computer and his "user" and everything with it, was gone. Mine, still ...
1
vote
3answers
18k views

sudo su fails with 'Unable to change to sudoers gid :operation not permitted.' fault [closed]

I have installed ubuntu and now I want to install flex. It asks for password but when I type my password, it asks me the password for root. When I enter the password which I had specified during ...
0
votes
2answers
330 views

Authentication required for every 1 hour for Internet but NO proxy. How do I get out from this problem?

OS: Ubuntu 12.04 and/or above My system connected to University campus Internet which has no proxy. But needs authentication (username and password) for every 1 hour. If the web-browser is running ...
1
vote
2answers
841 views

apt authentication failure on self-signed package

I did create a gpg key using "gpg --gen-key", here is the listing: > gpg --list-keys /home/<user>/.gnupg/pubring.gpg -------------------------------- pub 2048R/99EDE0B7 2013-02-05 uid ...
1
vote
1answer
1k views

Authentication required to install plug-ins and application [duplicate]

I cannot install new plug in to my linux computer. It keeps asking authentication required that needs a password. I do not know what the password is. Pls help me identify the problem or remove the ...
1
vote
1answer
2k views

Apt behind proxy

I've been trying to get a package manager to work behind our company proxy for a whole day now but without any luck. The proxy requires authentication which is my personal email address and password. ...
2
votes
1answer
1k views

ubuntu 11.10 /var/log/auth.log

I use Ubuntu 11.10. And I want it to write logging messages about failed ssh log in attempts to /var/log/auth.log. In my understanding /var/log/auth.log is supposed to hold all failed ssh connection ...
5
votes
1answer
2k views

Login on local terminal without password

I have a virtual guest of Ubuntu on a KVM Machine, I've setup the machine so I can type virsh console and be dropped into a console. I realise the security considerations here, but is it possible to ...
1
vote
1answer
3k views

Authentication issue after Wubi installation

I am unable to log-in to Ubuntu with the username/password combination I gave on Wubi at the time of installation (incorrect username/password error). This happened twice; the first time I really ...
3
votes
2answers
6k views

Authentication failed with the correct password and now I cannot use sudo anymore

Recently I installed Ubuntu 12.04 (first time on Ubuntu). I have my normal "administrator", and another Guest account. I was experimenting today with the user accounts, and set my "administrator" ...
0
votes
0answers
14 views

How do I authenticate over a domain while doing apt-get update? [duplicate]

I am getting various 401 auth errors when trying to sudo apt-get update. I am connected to my corp vpn and have an SSH into my Ubuntu machine. How can I authenticate using my network login/pw to ...
4
votes
1answer
107 views

How can clients authenticate to a proxy without user intervention?

I would like to set up a number of computers that need to go through a proxy server to get to the outside world. The OS is Ubuntu 12.04 but the issue seems common to all versions (are far as I can ...
5
votes
2answers
1k views

Is there a way to save username and password for print authentication?

I saw this this question and followed its answer, but the problem persists for me. Once I send a document to print, this dialog box (in figure) opens up and shows "Held for authentication". Then I ...
1
vote
1answer
550 views

Directory path for home to an external NTFS hard drive

OK, I have run into a problem with authentication and I think I have figured out the problem but i cant seem to find the solution anywhere I look. I am using Ubuntu 12.04 running Lamp (individually ...
2
votes
0answers
349 views

Atheros ar9285 can't connect to specific AP

My laptop (asus UL80J) has Atheros AR9285. the ubuntu is 12.10 -64 bit the problem is my wirless adopter work good with all AP that I have except one I tried: dmesg |grep wlan And it gave me ...
2
votes
2answers
906 views

gksu not working in menu mode but works in cli mode

I'm running 12.04, latest updates. when I use gksu in the menu to start a application the prompt for password doesn't appear and the application starts with user priviledges. If I use gksu from ...
0
votes
1answer
2k views

i cant remember my password [duplicate]

my computer goes on standby every 5mins and will then request for an authentication password; i cant remember setting any password. so i will have to restart the computer again before i can use it. ...
0
votes
2answers
6k views

Why do I get “Authentication Failure”? [duplicate]

I recently installed Ubuntu 12.10. As i started the terminal and ran the command su which we usually use to perform root operations and to get the # symbol. After running the command it asks me to ...
2
votes
1answer
522 views

Suddenly, I Can't login with correct password (greeter & tty)

This might be a duplicate of other password related questions but it's somehow eccentric. I have three accounts in my Ubuntu 12.10 system (one standard and two administrators). One of the ...
1
vote
1answer
503 views

“Permission denied (publickey).” error when trying to ssh into server

I am trying to connect to a server via SSH. I am getting the following log from using the command: ssh -vvvT ubuntu@ec2-176-34-121-133.eu-west-1.compute.amazonaws.com. Please could someone help me ...
1
vote
1answer
412 views

Log file size or age

I'd like to change various log files (particularly auth.log) to retain info for anywhere from the last 30-90 days. Right now it only has about 4 days worth of info. How do I modify these settings ...