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

learn more… | top users | synonyms

1
vote
1answer
14 views

Check which SSH key was used to login

So stupidly enough in our development team every individual SSH Key is used to access the root user directly. When Checking the auth.log i can find this Dec 18 09:45:04 webserver sshd[12377]: ...
0
votes
0answers
10 views

No longer asked to authenticate

I used to receive an authentication screen upon startup. Lately, the authentication screen has been popping up later and later in my session, and as of this week, I am no longer being asked to ...
0
votes
2answers
25 views

Accessing the computer [duplicate]

I have my son's laptop. He passed away this year and I am trying to access his computer. I dob't have the password or the email address he used. It is asking me for an authentication code when i ...
0
votes
3answers
34 views

how to run as administrator ubuntu 14.04 and not as guest?

today I installed ubuntu 14.04 and also a new user to the new operating sysytem. there are several problems I am facing with it they are: 1.I cant log in as administrator but as guest,can you help me ...
0
votes
0answers
22 views

Can login via ssh, but not system tty

Here's something weird. I can: ssh xyz@localhost provide my password, and login as xyz. However, I if hit ctrl-alt-F3 to go to the system prompt, and try to login as the same user xyz I get a ...
0
votes
1answer
34 views

ssh connection fails with and without rsa keys

I've got a machine running Ubuntu in the office.I've got a machine running Mint at home. My goal is to be able to work from home connecting to the office with ssh. I swear i tried to look for similar ...
0
votes
1answer
73 views

Stop asking for authentication to mount USB stick

My Ubuntu 14.04 is asking for my password to mount or unmount an USB stick. How can I change it, so that the mount is automatic and no password input is required ? This is about mounting arbitrary ...
0
votes
0answers
59 views

Authentication issues when booted into 14.10 - generally terminal works OK

Intel core i7 running 14.10 (upgraded) 64bit with i386 adaptors. No dual boot - only Utopic I have authentication issues across a range of programs and services when using Unity. As far as I can see, ...
1
vote
0answers
43 views

Can't authenticate against LDAP. /etc/nsswitch.conf seems to be ignored

Running ubuntu 14.0.4.1 on a BananaPi (ARM). I've had a lot of luck getting LDAP authentication to work under 14.0.4 on x86, but something about this just isn't working. If you run getent passwd | ...
1
vote
1answer
97 views

Software can't be installed or removed because the authentication service is not available

I'm trying to install flash via the software center and I get this error : "Software can't be installed or removed because the authentication service is not available. ...
0
votes
0answers
27 views

Is it possible to run software-updater without a password?

I know that I can add commands in /etc/sudoers to obtain passwordless sudo in the command-line, but I don't think this applies to the software-updater (does that use gksudo or some other form of ...
0
votes
0answers
22 views

Password reset - Authentication failure

Together with some friends we are using an Ubuntu 12.04 LTS dedicated Server for Teamspeak, Minecraft, etc. But we have some trouble with the passwords. Every day the server itself resets some of the ...
0
votes
0answers
64 views

How to allow access to web page from internal IP but use PAM auth for external access in Apache 2.4?

I have tried to implement the following logic for page access in an Apache 2.4 server in Ubuntu 14.04: if (internal-ip) allow; else if (external-ip) get authentication; A similar setup worked in ...
0
votes
2answers
58 views

How to use microsoft isa proxy with authentication on ubuntu 14.04 64-bit

my apt.conf file: Acquire::http::proxy "http://user:password@server:port/"; Acquire::https::proxy "https://user:password@server:port/"; Acquire::ftp::proxy "ftp://user:password@server:port/"; ...
0
votes
0answers
26 views

How to use pamusb to ONLY autologin

Is it possible to configure pamusb to only handle the login authentication? Right now all my authentication can be done with an usb stick, which means sudo and other stuff can be run by any random ...
0
votes
2answers
80 views

Change default user for authentication

When I attempt to perform certain actions within ubuntu I am asked to authenticate with a root user, but ubuntu doesn't give me options for which root user, it just specifies it as the user that set ...
0
votes
2answers
57 views

rsync + ssh public key asking authentication

After creating the keys and use ssh-copy-id command successfully, I can connect by ssh user@host but when I'm trying to do a transfer via rsync and it asks for password... rsync command is as follows: ...
0
votes
0answers
13 views

Can not authenticate on Firewall

The situation is I am running Ubuntu 12.04 and Firefox 11 and Firefox 26. Both because Firefox 26 was installed and I installed 11 because I thought Firefox 26 was creating the problem I am having. ...
2
votes
0answers
47 views

lubuntu completely ignoring ldap setup. Followed guide, no contact with ldap server

We have LDAP authentication working on every other server and lxc container in our enterprise, but when we try and have a brand spankin new Lubuntu 14.04 installation do the same, it's completely ...
1
vote
1answer
68 views

Connecting 14.04 to Windows 8.1

I have a machine with 14.04 and a Windows 8.1. They are connected to a gigabit router. Both are connected to a VPN. The Windows machine is able to see the Linux machine and copy files to it. The ...
-1
votes
3answers
112 views

How access openssh-server with external IP address from outside the Local Area Network

How can I use my new openssh-server with the external IP address from outside the Local Area Network? The purpose is that an external computer administrator from outside the Local Area Network should ...
0
votes
1answer
69 views

pg_dump won't run through PHP

This question has been addressed in various other posts but they don't seem to help me out. My issue is that I run the following script: $strBK = '/usr/bin/pg_dump --host localhost --port 5432 ...
0
votes
0answers
31 views

add authentication prompt to thunar file manager

I would like to know if there's a way to be asked for authentication every time I open thunar file manager. sort of like when you open synaptic package manager. I've tried cryptkeeper and other things ...
0
votes
1answer
87 views

How can I install Railo and Apache on Ubuntu and have it pass a basic Authentication username to Railo?

I'm trying to move from using Adobe ColdFusion to using Railo. The Application I'm trying to migrate relies on having the webserver check basic authentication, but then needs to know the authenticated ...
0
votes
0answers
50 views

Unable to find radius? Error is “service not found”

Hi team I have the required packages installed however system is still saying that it is unable to find the service. root@opennms-otrs:~# apt-get install freeradius freeradius-mysql freeradius-utils ...
2
votes
0answers
28 views

Validate password against regular expression?

Is it possible to somehow set a regular expression that would validate a user's password? So that if the regexp is set to: ^qwerty|йцуке$ than both qwerty and йцуке will be valid passwords. I want ...
0
votes
0answers
407 views

How to install ubuntu 14.04.1 behind an authenticating proxy

Hello I try to install ubuntu on vmbox with a NAT connection: What is going wrong is internet connection when installing to disc. I already added in a terminal: $ sudo -i # nano /etc/apt/apt.conf ...
-1
votes
1answer
49 views

AUTHENTICATION PASSWORD UNKNOWN [duplicate]

I have ubuntu 12.04 LTS and I do not know my authentication password due to which i cannot install any software. Its urgent. Please tell me a solution and not a suggestion. In case , if I have set the ...
0
votes
0answers
41 views

Installing Google 2 step Authentication causes SSH to not connect

I am following the instructions here https://www.digitalocean.com/community/tutorials/how-to-protect-ssh-with-two-factor-authentication After making the changes listed to /etc/pam.d/sshd and ...
0
votes
1answer
303 views

DigitalOcean droplet root password not accepted for client, but works for console

I have an Ubuntu 14.04 droplet with PubkeyAuthentication set to yes and PermitRootLogin set to no. Since I created it, my pubkey has worked fine. For some unknown reason today it's not accepting my ...
0
votes
1answer
44 views

Locked myself out of remote server

Before I left, I've set up an old computer with Lubuntu 14.04 32-bit. While trying to set up rtorrent, I did something to lock myself out while following this tutorial. Normally my computer has one ...
0
votes
0answers
23 views

Samba printing: difference in prompt for authentication vs set authentication details

I'm connecting a printer via Samba and am observing the difference in Authentication. When I hit 'Verify' using the 'Prompt user if authentication is required' details, and I enter my username, ...
0
votes
0answers
101 views

Lubuntu 14.04: fatal GDBus Error upon session login

Two days ago I freshly installed a Lubuntu Desktop 14.04 on an old Centrino M with 2 accounts: uid 1000 (administrator) and uid 1001 (general user) Until an hour ago all was well. Then shortly ...
0
votes
1answer
121 views

Ubuntu 14 with kerberos authentication, nslcd still needed?

I have converted my Ubuntu 14.04.1 systems over to kerberos authentication using corporate AD servers. The instructions said to install sssd, libpam-sss, libnss-sss. These package installations would ...
0
votes
1answer
186 views

How to stop having to enter password twice to unlock the screen?

Recently when I lock my Ubuntu 14.04 account I have to write my password twice in two different places before getting in. This happened recently. I think I might have installed some stuff that I saw ...
0
votes
1answer
155 views

How to fix authentication password, when password is rejected?

When I try to upgrade, I am prompted for authentication password. I enter the password I have set, but I receive a message saying it is incorrect. The same thing happens when I am prompted to "unlock" ...
1
vote
0answers
173 views

How to change proxy settings with authentication?

I am using Ubuntu 13.04 and having WiFi connection with proxy settings and authentication. By following some tutorials I successfully changed /etc/apt/apt.conf with the values Acquire::http::proxy ...
0
votes
0answers
36 views

ssh is disconnecting when tacacs+ is enabled

I am using ubuntu 12.04 and the openssh-server Version: 1:5.9p1-5ubuntu1.29. I'm using a remote tacacs+ server for authentication and authorization. When I login through ssh, tacacs+ authentication ...
2
votes
1answer
27 views

Auto creating accounts

I'm wondering if there is any way to configure Ubuntu or install special software which could allow to automatically create user account when user login first time (without any special privileges, ...
1
vote
2answers
109 views

Do logins by the gdm (or lightdm) user in auth.log mean my system is breached?

Please look at this auth.log (from Ubuntu 14.04) I have provided and tell me who this gdm user is and why there are all these unauthenticated logins? I am freaked out; please help! Here's the ...
0
votes
0answers
111 views

CUPS isn't allowed to access SSSD for authentication

I'm running Ubuntu 14.04. The CUPS server requires authentication for all print jobs. If I send a job as a domain user I get the following errors. Any help would be appreciated. I can't find anything ...
0
votes
0answers
6 views

How to get password working again after upgrade? [duplicate]

Installed Ubuntu 14.04, but my password doesn't work now. This is on an HP laptop PC that accepted my password before the upgrade.
0
votes
1answer
482 views

SSSD password change not working with LDAP backend

Environment info: AD on win 2k8r2 Ubuntu 12.04.5 LTS SSSD v1.8.6 everything is in the same vlan I have an LDAP / SSSD solution in use on our Ubuntu servers. The auth process works correctly ...
1
vote
1answer
61 views

How to make sudo use a separate password?

Using Ubuntu 14.04, I have 2 accounts: Account A (first one set up) with Password 1 Account B (second set up) with Password 2, when updating software in Account B, I use Password 1 to authenticate. ...
0
votes
1answer
150 views

How to change the default position of ~/.ssh/authorized_keys

My VM server is installed ubuntu 12.04 and connected to a storage (not sure about the system of this storage). I have change my home directory to the storage. However this storage could be assessed by ...
2
votes
1answer
2k views

Can't SSH in as root

I'm using the default installation of openssh-server for my Ubuntu 14.04 server. I can connect through the console as root like normal, with my username and password. When I try to SSH with the same ...
0
votes
1answer
60 views

Download apps in ubuntu software centre

I am having a problem authenticating in Ubuntu 12.04. I have no password. I have bought my computer online. There is no password when I log in. It's showing me unsuccessful password. So I cannot ...
1
vote
0answers
22 views

fprint-demo casusing authentication failure

I installed fprint-demo in Ubuntu 14.04 unfortunately I did not setup the finger prints and when I try to log in; its denying my password. I tried to remove the password in recovery mode: rw -o ...
0
votes
0answers
27 views

Get Access Problem as admin user

I want to access "sudoers" file and also access "su -" but I fail and get following error please check terminal output that I have tried. I am m-usman(admin) but not allow to edit or access ? :( ...
0
votes
0answers
7 views

I dont know how to overcome authentication problem with my old password being unrecognized [duplicate]

I am unable to change my admin password. Its showing 'authentication is required to change the data'. And its asking for a password. Its not working with my so set password. please help me..