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

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1
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2answers
318 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 ...
1
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1answer
8k 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 http://ppa....
2
votes
0answers
2k 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
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1answer
524 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
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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' 2014-...
1
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2answers
1k 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
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1answer
491 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: ...
2
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2answers
6k 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
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1answer
956 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
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1answer
633 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
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1answer
31 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 ...
8
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2answers
3k 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
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0answers
261 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 ...
6
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1answer
2k 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 ...
0
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1answer
102 views

ssh key login to vps woes

I recently created a vps for web hosting purposes. Everything was going fine until I decided that it's time to add another account and disable root authentication. I added a new user to the sudoers ...
1
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1answer
426 views

Authentication failure for FTP server

I followed this link to install ftp server. And also added ftp user(ftpuser) and also added ftp password(1234567). But when I am using this password in any wordpress site or any ftp software such as ...
1
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1answer
138 views

Private/Public key authentication not working after reinstalling ubuntu

I backed up my ~/.ssh folder and reinstalled ubuntu 13.10 on my machine. Then I just copied the .ssh folder back into my home folder and tried to connect to my server. I'm getting the following error: ...
2
votes
2answers
452 views

Disable console access?

How do I disable console access to Ubuntu 12.04? I want to only allow login over SSH. I have searched the web thoroughly but no clear answer was found. EDIT: I'm talking about disabling physical ...
17
votes
1answer
11k views

Error authenticating some packages while upgrade

When I try to upgrade my ubuntu 13.04 to 13.10, it gives the following error: It was not possible to authenticate some packages. This may be a transient network problem. You may want to try again ...
0
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1answer
215 views

filter PAM_yubico.so debug stdout

I want to use the yubico-pam module (https://github.com/Yubico/yubico-pam) to enable challenge-response authentification using my yubikey when sudoing. I've managed to do that by adding the line ...
0
votes
3answers
37 views

User Auth Failure

I was trying to change my usernme on Ubuntu 12.04 lts by opening Terminal and enter this command $ sudo nautilus Then, I went to File System > home > alex (my username) I right click on ...
2
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1answer
241 views

smb authentication not working

I've recently created a windows file share (SMB). On linux however, it just says "Unable to mount location Failed to mount windows share" instead of asking for a username & password. On the shares ...
0
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1answer
664 views

Connect to internet via captive portal from console

I use Plasma-Desktop. For some reason the packages for starting my graphical desktop are broken. I'd like to install the patched version but therefore I need to connect to the internet. Using a ...
0
votes
1answer
2k views

Unable to login through GUI as a user but I am able to login via terminal

I am unable to login through GUI as a user but I am able to login via terminal. This occurred after I installed 2 steps authenticator of Google using apt-get install command. I followed these steps: ...
0
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1answer
1k views

Kerberos and google-authenticator (2-factor auth)

Does anyone know how can I use google-authenticator in combination with kerberos and thus provide to my users 2-factor authentication?
0
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1answer
4k views

How to configure system wide proxy with user authentication

I would like to use my LAN's proxy server in Ubuntu Desktop 12.04, but all my attempts have failed. Here is what I did: 1) I went to System Settings Menu > Network, selected Network Proxy, Manual ...
0
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1answer
348 views

Unusual activity was logged on my system when I wasn't home

Can someone please help with this log? I wasn't home when this happened. Dec 27 07:48:13 mikky-E720 su[26915]: pam_unix(su:session): session opened for user mikky by (uid=0) Dec 27 07:48:13 mikky-...
3
votes
3answers
38k views

Public Key authentication failed

I am using ubuntu 13.10, and the server runs ubuntu 12.04. I had generate private and public keys using ssh-keygen, and put id_rsa.pub to server side and added it to authorzied_keys accordding to the ...
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votes
2answers
3k views

Software Centre Authentication Error 13.10 [closed]

So I'm very new to Ubuntu, I don't know how to edit files, everything I do to improve Ubuntu is done through the Terminal using guides I find online. Basically since I downloaded Ubuntu 13.10 overtop ...
1
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1answer
121 views

Updates Require Authentication

My Update Manager in Ubuntu 12.04 pops up this message while installing updates: 'Requires installation of untrusted packages. The action would require the installation of packages from not ...
0
votes
1answer
1k views

Can I have apt-get take my authorization credentials?

I have a Ubuntu virtual machine that I use at work. I had previously been using this without any issues but there was an update put in that now requires all outbound connections to authenticate with ...
0
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2answers
1k views

Software Center prompts password of another user

I have a krb5-ldap user in an "administrators" which is added to sudoers list as follows: %administrators ALL=(ALL) ALL Now that works fine for all sudo operations. But when that user wants to ...
0
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1answer
685 views

MaaS API Internal Server Error 500 while commissioning Node

I always get request to http://$MaaSServer/MAAS/metadata//2012-03-01/ failed, sleeping HTTP Error 500: INTERNAL SERVER ERROR (screenshot not posted, I lack the reputation . . . ;-) ) now, ...
0
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1answer
349 views

how can i get past the authentication code stuff if i bought from a used computer vendor [closed]

i bought a computer with Ubuntu from a pawn shop not knowing that it had this OS can someone tell me how i can get past the authenticate code screen because I'm tired of getting the update stuff when ...
1
vote
1answer
279 views

How to re-download unauthenticated packages

I live in egypt. we have a country specific server here. I used to download everything from there. but when I got to download encryptfs, synaptic said the package could not be authenticated, so I ...
0
votes
1answer
379 views

maas-cli login always returns 403 Forbidden

I have a test setup running with a MaaS Server, a JuJu Server and a number of Nodes in the MaaS Cluster. After I reinstalled my MaaS Server (and subsequently the JuJu-Core Server) with Saucy instead ...
0
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1answer
245 views

Two-factor authentication on Ubuntu One

Is there a way to enable two-factor authentication to access my Ubuntu One account?
1
vote
1answer
915 views

Login with facial recognition in Ubuntu 13.04?

I have tried to install „PAM face authentication“ with the following commands: sudo add-apt-repository ppa:antonio.chiurazzi sudo apt-get update sudo apt-get install pam-face-authentication But it ...
0
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1answer
128 views

Identification and Authentication methods in Ubuntu

Since I have a very long password, I would like to additionally use an alternative login method. Which other authentication methods are possible in Ubuntu to log in?
0
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1answer
348 views

gksudo nautilus - incorrect password

I have Ubuntu 12.04 running on my office PC. I have a STANDARD user working on it (with limited privileges). I'm looking at the screen through Team Viewer and I am trying to run gksudo -u AdminUser ...
3
votes
1answer
785 views

Is there a secure way to pass authentication parameters for proxy to applications?

I am behind a proxy server and need to specify authentication parameters to access the internet. For this, I have exported my username, password, host and port_no in my /home/$USER/.bashrc file and in ...
-1
votes
1answer
971 views

How to Unlock Applications folder

This question relates to Ubuntu 12.04 LTS. I wish to move a folder from the desktop into the applications folder at /home/usr/share/applications. When I attempt to drag the folder from the desktop ...
0
votes
1answer
123 views

Cascading Authentication PAM login

I'm trying to set up an authentication scheme for Ubuntu using the pam files. However, I cannot figure out how to have two separate methods of authentication. I've set up a Yubikey authentication, ...
1
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1answer
219 views

Google authenticator for Galaxy Nexus with Ubuntu Touch

I'm en route to try and install ubuntu touch on my galaxy nexus (GSM-i9250). Since I'm using the google authenticator app in order to access my google account, I'm afraid that I'll be locked out of my ...
0
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1answer
79 views

Require password even though I removed it

Good day. One day I decided to remove the logon password from the setting. After that when I tried to change my other settings eg : install another language, Ubuntu states it required Authentication ...
-1
votes
1answer
1k views

Authentication required by wireless network appears multiple times

Sometimes when I don't use my Ubuntu for a long time - maybe a day, I can see the popup showing Authentication required by wireless network There's obviously some wireless connects and ...
1
vote
1answer
3k views

Very slow svn checkouts unless I use --no-auth-cache

Using an up-to-date Ubuntu precise 64-bit, checking out a large code base svn co https://.... takes hours. Using cygwin or tortoise it takes 5 minutes. After poking around, I found this post which ...
4
votes
1answer
274 views

How to disable shutdown/restart/hibernate without authentication

I do not want to allow my desktop to shutdown/restart/hibernate without authentication. How can I achieve this? I am running Ubuntu 12.04 LTS with unity. Most of the questions previously asked ...
1
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0answers
738 views

Polipo HTTPS Authentication Problem

I use internet behind http proxy, and that requires authentication. I tried using polipo to bypass the authenticated proxy to 127.0.0.1:9134. Applying these settings to my browser, works fine for ...
0
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1answer
1k views

Bypass Authenticated HTTP Proxy :Ubuntu

Is there any way to bypass authenticated http proxy to something like 127.0.0.1:port, so that we could use it any application, simply by filling out the proxy 127.0.0.1:port (which could be used for ...