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

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0
votes
1answer
1k 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
7k 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 ...
52
votes
2answers
63k 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 #...
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 ...
2
votes
1answer
177 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
33k 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 http://www.medibuntu.org/sources....
1
vote
2answers
10k 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 ...
104
votes
3answers
102k 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
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 ...
26
votes
3answers
16k 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?
113
votes
6answers
82k views

Why am I getting authentication errors for packages from an Ubuntu repository?

I'm experimenting with VPNs, so I wanted to install pptpd. john@desktop:~$ sudo apt-get install pptpd [sudo] password for john: <snip> The following extra packages will be installed: bcrelay ...
4
votes
2answers
568 views

Authenticate as root to view a folder?

Is there a way to setup nautilus so that when my user attempts to view a folder owned / locked by root, it asks for the root password? Kind of like running a nautilus browser using sudo, from the ...
5
votes
2answers
3k views

Software center will not let me authorize

When trying to install a program from the software center it will ask for a password. I enter my password and the authentication window goes away and/or tells me there is a problem and the program ...
15
votes
5answers
29k views

Can't complete dropbox installation from behind proxy

Problem: My PC on campus sits behind a proxy (requiring authentication) and I can't setup Dropbox. I am convinced that this is a proxy issue as I can't setup Ubuntu one either (but I don't use Ubuntu ...
15
votes
8answers
20k views

ssh no longer allows public key authentication

My machine recently stopped accepting incoming public key authentication. I have an ubuntu 11.04 desktop that I ssh into from a windows machine. I use putty with pageant. I am able to connect but ...
2
votes
0answers
1k views

Ubuntu unlock screen is “checking password…” too slow [closed]

Question When I don't use my laptop (with Ubuntu 11.10 (x64) and Unity 2d) for 5-10 minutes, it automatically locks. After that, when I'm trying to unlock it, it asks for the password. After I enter ...
0
votes
1answer
795 views

Unable to login after changing 'root' name in /etc/passwd

I have ubuntu server on AWS(amazon web services) EC2 . I access it remotely through Putty service on my windows. Unfortunately i have changed the username 'root' to some other editing the file /etc/...
2
votes
1answer
5k views

Thunderbird issue with proxy authentication

I was setting up Thunderbird at home with wired Internet connection, and everything was fine. However when I tried getting new mails using college wireless which requires proxy with authentication, ...
6
votes
1answer
2k views

UbuntuOne for Windows does not work - I got “Problem opening the ping_url” error

When I try to login to existing account I got "Problem opening the ping_url" error.
5
votes
1answer
3k views

Use generated Kerberos tickets in Chromium browser

Has anyone had luck using Kerberos tickets generated with kinit in Chromium for authenticating to websites? The company I work for supports Kerberos authentication to internal websites, and I'm able ...
10
votes
5answers
10k views

Use different username on CUPS remote printing

I'm using CUPS to print on an enterprise network. The job gets submitted fine, but I need to submit it as another username. Now I'm jon but I need to send it as say jonallard. On the command line, ...
0
votes
1answer
886 views

likewise open auth to AD

I have installed likewise open via apt-get on 11.04 server 32 bit and have sucessfully joined our domain. however when trying to login via putty using a domain account I cannot complete the ...
0
votes
2answers
6k views

How do I enable account lockout using pam_tally?

I am trying to implement account lockout in ubuntu using pam_tally. I have tried adding the follwing lines in /etc/pam.d/common-auth auth required pam_tally.so deny=3 account required ...
3
votes
2answers
8k views

Can Ubuntu act as a Domain Controller for multiple OSes?

I would like to install Ubuntu server at my church to start testing a few options (to eliminate Microsoft usage). Some PCs use Windows XP, and some use Ubuntu. I would like the Ubuntu server to be a ...
4
votes
2answers
11k views

Save print server authentication credentials

At my work, I print through a print server. My /etc/cups.d/client.conf file is: ServerName the.appropriate.server.location With this configuration I have to log in with a username and a password ...
1
vote
1answer
421 views

Danger of using an untrusted apt mirror or proxy

My vague understanding of the authentication mechanisms behind debian/ubuntu packaging tells me that it should be safe to install packages downloaded from an untrusted server or proxy as long as apt ...
0
votes
1answer
495 views

Does the Linksys Secure Easy Setup (SES) button work with Ubuntu?

Does the Linksys Secure Easy Setup (SES) button work with Ubuntu? I'm housesitting for someone tonight, and when I asked what their wireless password was, they told me about the SES button they press ...
4
votes
2answers
11k views

Authentication at CUPS web interface

When I try to perform any administrative task on CUPS web interface I get pop-up window that requires me to authenticate at CUPS. Authenticating both as root and as a my user fail, even though my user ...
11
votes
2answers
4k views

What is the least insecure way to store a password that is used by a script?

I have a Bash script that automatically authenticates with a service using my username and password. The credentials are currently stored as plain text within the script. What precautions should I ...
4
votes
2answers
2k views

How do I approve specific computers to ssh into a machine with password authentication disabled?

The instructions in help.ubuntu.com/community/SSH/OpenSSH/Configuring recommend disabling password authentication so that "it will only be possible to connect from computers you have specifically ...
5
votes
1answer
2k views

How to authenticate googlecl using terminal

I'm trying to use googlecl on my Ubuntu server to send pictures from my server to picasa. I can't seem to authenticate via google using w3m, so I'm wondering if there is some other way to ...
1
vote
1answer
3k views

$_SERVER['PHP_AUTH_DIGEST'] empty with mod_auth_digest enabled

The output from sudo apachectl -t -D DUMP_MODULES Loaded Modules: core_module (static) log_config_module (static) logio_module (static) mpm_prefork_module (static) http_module (static) ...
6
votes
2answers
701 views

How do I configure a fingerprint scanner?

I have a HP dv6-3079tx. One feature I like about it is the fingerprint scanner, Is there a utility out there that will allow me to swipe my finger whenever I am required to enter my password?
139
votes
12answers
168k views

How can I set up password-less SSH login?

I want to be able to login to a remote via ssh without having to enter the password all the time. How do I set it up? Is a different command required to execute a password-less session?
4
votes
2answers
317 views

I cannot install applications because I don't know what to do with the authentication dialog

Whenever I try to download an application, I'm asked for authentication. With what? A password? I tried to use my Ubuntu-One password but that didn't work.
2
votes
1answer
2k views

Problems with disappearing authentication window

When I try to use the software center, the authentication windows pops up and disappears after 1 second shaking sideways (like when the password is incorrect) even though I was not able to type ...
8
votes
0answers
256 views

How to move keys to “Login” in seahorse? [duplicate]

Possible Duplicate: Is there a way to move passwords from “Default” to “Login” in seahorse? I want to move a few passwords into "login" in Seahorse, so that I will ...
3
votes
1answer
2k views

Authentication failure won't resolve in Ubuntu One

today U1 started to throw an error when trying to connect. At first I got a rather cryptic message (something with AUTH_FAILURE maybe?) upon which I found the following instructions: https://wiki....
7
votes
3answers
4k views

Install packages without root permissions

Would it be possible to install packages without admin rights(sudo?) on Ubuntu? It doesn't have to be system-wide, maybe a private installation within /home. I want this because I'd like to setup my ...
28
votes
6answers
68k views

How to run an application using sudo without a password?

... but still be required for applications that need admin privilegies? In order to allow the following: $ apache2ctl restart httpd not running, trying to start (13)Permission denied: make_sock: ...
2
votes
1answer
185 views

Admin authentication takes forever

I am running ubuntu 10.10 installed through wubi. When every I have to authenticate for administrative privileges (like for installing software), the authentication window just hangs there forever ...
1
vote
2answers
2k views

Samba issue with sharing directories on NTFS/FAT32

I have some strange problems with Samba server. I am using samba Version 3.5.4 on Ubuntu 10.10. I have two Windows XP machines, one on VirtualBox on Ubuntu and another office laptop. Windows machine ...
3
votes
2answers
8k views

git authentication with Active Directory user

I use likewise-open to connect to a Windows AD, and I am able to see AD users. What should I do to authenticate a user for git when I push to and pull from a git repository? Where is this configured?...
3
votes
2answers
3k views

How do I install FreeNX server so that it works correctly?

I've tried every single possible way of installing the server now, I've read every how to available and I still can't get it to work. Please let me know in which step I do wrong. I'm using ubuntu 10....
0
votes
2answers
2k views

Authorization pop-up requested by http://localhost:51675 every time I run Firefox

Using Ubuntu 10.04. Whenever I run Firefox I get a pop up requesting authorisation. It says 'a user name and password are being requested by http://localhost:51675. The site says "server" I have ...
1
vote
1answer
1k views

How can I use face authentication to log in?

I got a new Dell laptop and I used to login into Windows using webcam authentication. Now I have removed Windows and installed Ubuntu but I could not find any application for face authentication. How ...
2
votes
2answers
1k views

SSH Key problem

I want to setup my home server to use ssh keys but when I follow the tutorial on https://help.ubuntu.com/10.04/serverguide/C/openssh-server.html for setting up ssh keys I get this: Bad port 'umask ...