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

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0
votes
1answer
618 views

Disable password authentication to set proxy information

To set up/change proxy settings on Ubuntu 12.04 (Gnome 3), i have to provide my admin password. Is it possible to disable this authentication? I don't need that any user could change it, just that i ...
1
vote
1answer
2k views

Authentication failure!

At the time of installation i gave login password and that was the login keyring password and authentication password.. then once in user accounts->login options in dat for password options i set as ...
1
vote
2answers
1k views

I have removed my password now what should I answer when it asks for password?

I used pass word earlier but for now I removed password and used to login without password. Now some actions need administrators aurthentication through password even to set password I it asks for ...
32
votes
1answer
6k views

How can I use face-recognition to login?

I am using Ubuntu 12.04 64-bit. I am looking for a facial recognition program that I could use to log in to my account. I have heard of Pam Face Recognition, but there does not appear to be a package ...
5
votes
4answers
24k views

Ubuntu 12.04 network printing through Windows Samba server

I have to print through a Samba server sharing an HP printer. After upgrading to 12.04 I'm no longer able to get it to work. The printer is shared through a samba server and I need to provide logon ...
1
vote
2answers
6k views

Passwordless su in a Bash script?

I've run into a dilemma while migrating a Hadoop installation from Oracle Enterprise Linux to Ubuntu. The prior developer put the following command into rc.local within OEL: su reporter -c "cd ...
5
votes
3answers
21k views

Password not working for sudo (“Authentication failure”)

Before I mention anything further, DO NOT give me a response saying that terminal won't show password input. I'm AWARE of that. I'm typing my user password in (not a capslock issue), and for some ...
2
votes
1answer
1k views

Adobe Air workaround for Pandora not working

I was trying this symbolic link approach because of the problem described here: http://askubuntu.com/a/120221/70462 After I made the symlink, the installation proceeded further than before, but it ...
2
votes
3answers
16k views

Cannot authenticate without a password

The problem can be reproduced as follows: When I remove the password of an administrator account, "Log In without Password", I cannot use that account to authenticate. When I do something that ...
13
votes
4answers
9k views

I deleted the “/etc/passwd” file and cannot log in

I was trying to change my username and also my home directory (/home/username) and my system started to crash. I deleted the passwd file but I had a backup named passwd_bkp. I tried to rename this ...
0
votes
2answers
5k views

How to configure ubuntu ldap client to get password policies from server?

I have a ldap server on CentOS, 389-ds. I configured the client, ubuntu 12.04, to authenticate on that base and it works very well. But it don't gets the password policies from server. For example, if ...
1
vote
0answers
642 views

Proxy authorisation works in Firefox but not elsewhere [closed]

My corporation requires proxy to which you need to authorise. We are running on Win7 system. I have installed VirtualBox with Ubuntu (as 1st machine) and CentOS (2nd machine). While in Firefox ...
5
votes
2answers
427 views

I think someone logged into my computer at work

I went to get breakfast in the cafeteria and when I came back I noticed my lockscreen hadn't faded, as if it was accessed in the past 5 minutes. There is the log file snippet for the keyword 'guest': ...
4
votes
0answers
6k views

I can SSH into a remote host but get “Connection reset by peer” with SSHFS, what do I miss?

I created a key pair to connect to a Synology disk from 12.04. Deployed, edit ~/.ssh/config to automatically use it. Tested: ssh user@remotesynology -> works like a charm. Tested on a second remote ...
-1
votes
1answer
135 views

Authentication Password to install Adobe to stream movies 11.10 system [closed]

I just purchased a computer with Ubuntu from the University. They said it was freshly installed. I would like to stream media and watch DVD's for one thing. I tried to install Adobe, but I need a ...
0
votes
2answers
4k views

Downloading error “Could not retrieve the required disk image ” [duplicate]

When I try to download Ubuntu 12.04 using the Windows installer (Wubi) through a proxy server which requires proxy authentication, after I choose the Ubuntu installation size, username and password, ...
3
votes
1answer
1k views

Once authenticated once, passwords are cached in lightdm

We are preparing 12.04 LTS for our userbase and have done some basic configuration to the login screen (disabled guest account, removed user list, etc). However, one thing that I've noticed is that ...
6
votes
1answer
3k views

Auth failed error on windows 7 ultimate

after installing ubuntu one on windows 7 ultimate, when i try to log in, Ubuntu gives me back the message :The authentication failed. Oh, it's OK. Perhaps I've forgotten the pass. So i clicked I've ...
0
votes
2answers
8k views

sudo in the Terminal seems not to accept password input [duplicate]

Possible Duplicate: Nothing shows up on the screen when I type my password I upgraded to Ubuntu 12.04 LTS and was trying to update software with sudo apt-get .... In the Terminal I am asked ...
2
votes
2answers
16k views

I cannot enter my password when using sudo to install Sophos AV for Linux [duplicate]

I cannot type my password as shown below. After successfully unlocking root account in Ubuntu 12.04 LTS. saintmichael@ubuntu:~$ sudo usage: sudo [-D level] -h | -K | -k | -V usage: sudo -v [-AknS] ...
1
vote
1answer
229 views

Ubuntu One Authentication process

I went to sign up for Ubuntu One and during the sign up process, I had to wait for the authentication code before I could proceed. I thought this was an instant process and it took a while for the ...
2
votes
4answers
7k views

12.04: LightDM freezes while “Logging in…” - maybe due to deactivated login sound [closed]

good morning, lightdm freezes often after I entered my passwort. It hangs exactly saying "logging in...". It's no total system breakdown though. I found out that there is already an existing bug ...
2
votes
0answers
841 views

I can log in with my password, but it's not accepted as valid for authentication

I can log in with my password just fine, but when trying to use sudo to run commands or authenticating to install software, my password does not work and my account is an administrator account. ...
2
votes
1answer
9k views

Network authentication not working

I just installed Ubuntu 12.04 and Im trying to connect it to my NAS. It connects fine to folders where there are not authentication needed. However, if I try to open a password protected folder it ...
0
votes
1answer
2k views

Can't access our Buffalo Network attached storage device

I get a box asking for the user name and password, which I correctly supply, but it won't accept them. I just verified that the user name and password work on an old 10.04 machine.
2
votes
1answer
1k views

After Upgrade to 12.04 the Login takes forever

I recently upgraded from Xubuntu 11.10 to 12.04. Since then it takes a very long time for me to Login. The time it takes to get to the login screen is normal but after I type in my password it takes ...
1
vote
2answers
10k views

Unable to connect to Samba share folders - desperation ahead

today I set up a Ubuntu Server 10.04 LTS on our computer @work, /home was requested to be encrypted. I installed Samba and configured it according to several tutorials on the net - and I'm completely ...
0
votes
1answer
565 views

“connect to hidden wireless Network” needs always admin authorization

When I select "connect to the hidden wireless Network" from the gnome wireless Menu and select the preconfigured template, I get always an authorization box when logged in as normal user. How can I ...
5
votes
2answers
1k views

Where should a non-administrative user save a CA certificate?

I have a CA certificate that I use to connect to a WPA2 Enterprise wireless network. Where within my home folder should I store the .crt file? I don't see anything in the Filesystem Hierarchy ...
0
votes
1answer
904 views

Disable constant user authentication

I've been using windows for 10 years, and now discovered Ubuntu, which is way cooler, but the downside is that I'm at a complete lost.. So far , so good but what I find annoying is that I have to type ...
1
vote
1answer
4k views

Can I set up samba so it automatically allows all the local usernames and passwords?

I have set up samba like this (this is the complete smb.conf): [global] log file = /var/log/samba/log log level = 2 security = user [homes] browsable = false read only = no valid users = %S I'd ...
0
votes
4answers
2k views

Picasa 3.9 login fails with 2-factor authentication

I've installed Picasa 3.9 via the instructions at webupd8, however the login window keeps failing with the message, "You must be connected to the Internet to use this feature." If "Try again" is tried ...
7
votes
3answers
12k views

How to use “apt-get” via “Http-proxy” like this?

I'm trying to use apt-get command on a network that uses a proxy, like this: We use 10.114.7.7 on port 80 as Http-proxy, and after that an authentication window comes up, asking for user name and ...
0
votes
1answer
861 views

Deepin Software Centre unable to aunthenticate password

I am using Kubuntu 11.10. I tried installing Deepin Software Centre in it. Installation was successful but when I launched the application it asked for password. Every time I entered the password, it ...
3
votes
2answers
6k views

How to fix sudo: setreuid(ROOT_UID, user_uid): Operation not permitted error?

I am using LDAP authentication on my Ubuntu 11.10 server. I installed libpam-ldap, and configured things accordingly. It works great, except that I get this error every once in a while when I try to ...
1
vote
1answer
1k views

Wireless USB - D-Link DWA-125, constant authentication required. Ubuntu 10.10

I installed Ubuntu 10.10 Desktop clean install on a hard drive. I then plugged in my D-Link DWA-125, and it immediately picked up my home network. So I click connect, and after a while, it asks for ...
26
votes
2answers
36k 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 ...
1
vote
0answers
409 views

ISP Radius Server [closed]

We are at the first steps in the process of setting up as an ISP and looking through the hardware and software that will be needed. Currently our wholesale supplier is quoting for a commercial radius ...
1
vote
0answers
192 views

'Authentication Required' dialogue is asking for the wrong account [closed]

For example if I try to install software from the Software Centre, or change Update Manager settings, instead of asking for my password, it asks for that of another admin account! I have to resort to ...
0
votes
1answer
4k views

Authentication problem - and I still can't change the password [duplicate]

Possible Duplicate: How do I reset a lost Administrative(root) password? My question has been previously asked by other users, but has been dismissed by those who answered. I changed the ...
1
vote
0answers
1k views

“Your authentication attempt was unsuccessful.” error after upgrading to 11.10 [closed]

I just updated to ubuntu 11.10 and am getting "Your authentication attempt was unsuccessful." I am the only user and am the Administrator, during login on my keyring i set to logon automatically, but ...
2
votes
1answer
161 views

how do I use ssh with key access in 11.10

I've used ssh before and password access from my new asus k53by laptop with a fresh 11.10 install to dev server works fine. I wanted to set up key access for added security and ease of scripting and ...
3
votes
2answers
23k views

I cannot enter my password in the terminal - can't install packages [duplicate]

Possible Duplicate: Nothing shows up on the screen when I type my password I can open a terminal (Ctrl-Alt-T) I can copy or type in the following: sudo wget ...
1
vote
2answers
7k views

Authentication for everything

I was wondering if it is possible to just disable the password authentication. It is getting tedious to install everything when I'm being asked to enter my password what feels like every two seconds. ...
1
vote
1answer
3k views

“Wireless authentification” appears even when wep key is saved [duplicate]

In Ubuntu 11.10 dialog Box "Wireless authentification requiered" appears even when the wep key it's alraedy saved in system. That appears when I lost wireless connection and the system retry to ...
83
votes
3answers
78k views

How do I deal with “unauthenticated sources” errors in the Software Center?

Any install that I'm trying through the Software Center is telling me: Requires installation of untrusted packages: The action would require the installation of packages from not authenticated ...
1
vote
0answers
18k views

How do I reset password in Ubuntu 11.10 [closed]

I am new to Ubuntu and am encountering problems downloading updates as I don't know or have a password to authenticate. I dropped to root shell during boot up, then used the password command, entered ...
1
vote
1answer
2k views

Local user logging when centrify express installed

I had installed centrify express in Ubuntu 11.10 from softer center. After that i am able to logging in windows domain,but i am not able logging local user account please help me Ony other way to ...
18
votes
2answers
11k views

nslookup finds ip, but ping doesnt

I know this looks like all the other "can ping via ip but not dns" questions, but those didnt really help me at all. Also, having hosts files in all machines is not doable as this server will ...
6
votes
3answers
3k views

gksudo with cool GNOME Shell integration

What's the command for executing this "gksudo" (or whatever it is) window from Alt+F2?