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

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5
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0answers
174 views

Why is “Authentication is required to …?”

When I plug an SD card into the SD card reader (/dev/mmcblk0), a popup appears, saying: Authentication is required to mount a device. When I plug in a VGA cable between my laptop and an external ...
4
votes
0answers
116 views

Ubuntu One oAuth token - time of life

I try to develop some Java application that works with Ubuntu One account. Everything is ok, I have access to my U1 space but I'm not sure of one thing. How long may I use my oAuth token? Has it some ...
3
votes
0answers
184 views

Remove the “Authentication is required for …”

I'm terribly sorry if this has been answered somewhere else but I've read through many forum posts and still haven't found a fix to my issue. Recently installed Ubuntu 12.04 then updated to 14.04 ...
3
votes
0answers
545 views

Samba keeps warning 'Session closed for user nobody'. Why?

I've set up an Ubuntu 14.04 server, using Samba to share files to our Windows clients. Everything appears to be working correctly, but while checking my auth logs, I see the line 'session closed for ...
3
votes
0answers
237 views

Authentication problem-I can't enable my wireless driver

I have just installed Ubuntu 12.10 after trying it on a usb stick which worked fairly well. But currently I am not able to install anything because every time I want to do something I'm prompted to ...
2
votes
0answers
91 views

In Ubuntu 14.04, password works for system login but nothing else

TOTAL noob here, having installed Ubuntu 14.04 on my laptop (with some difficulty, as I have no clue what I'm doing). I set a strong login password that continues to let me log in to my system. I can ...
2
votes
0answers
117 views

14.04 samba-winbind pam_mkhomedir.so home directory ownership

After joining ubuntu 14.04 to our Active-Directory Domain using samba-winbind pam_mkhomedir creates home, but ~/.config and other directories are owned by root, preventing graphical login. Please ...
2
votes
0answers
386 views

How do we implement requirements of password policy?

This question might look similar but I could not find a solution to this which covers all the below requirements of the policy, Hence please help me: - Incorrect pass lockout (after 3 incorrect ...
2
votes
0answers
1k 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 | ...
2
votes
0answers
206 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 ...
2
votes
0answers
55 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 ...
2
votes
0answers
182 views

Ubuntu asks for permission to add a printer, but nothing works

I am trying to install my HP LaserJet Pro 400 color m451nw, got it all worked out using the hplip open-source program (hplip-3.14.6) until I get to the very end where I verify and setup the device and ...
2
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0answers
640 views

Ubuntu Server (14.04 LTS) System-Wide Socks5 Auth Proxy

I have recently switched to the server version of Ubuntu 14.04 LTS and am not aware of a way to apply a system-wide authentication socks5 proxy so that all traffic on that computer goes through the ...
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
votes
0answers
352 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 ...
2
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0answers
384 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
0answers
956 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. ...
1
vote
0answers
28 views

Configuring NFS mount to use LDAP user id

My research group uses LDAP authentication for all the desktops. However, we've purchased a few laptops and would like to set them up so that they don't require LDAP authentication (so we can work ...
1
vote
0answers
22 views

Not able to run jhbuild:Error executing command as another user: Not authorized

I am running jhbuild sysdeps --install After running this command it is asking for authentication: ==== AUTHENTICATING FOR org.freedesktop.policykit.exec === Authentication is needed to run ...
1
vote
0answers
31 views

PAM USB: require USB device only for some users

I have configured the pam_usb module on my Ubuntu 14.04.4 system. The current common-auth rules look like this: auth sufficient pam_usb.so auth [success=1 default=ignore] ...
1
vote
0answers
31 views

15.10 Biometric Auth

I have seen biometric authentication such as Pam-face-authentication and the such, but when I tried to get it to work, it didn't do anything, I realised it was old, does anyone know of a good ...
1
vote
0answers
170 views

org.freedesktop.accounts.change-own-user-data asks me for password

I'm on Ubuntu 15.10. with multiple users configured. Each time I switch to another user and come back to my account, I have a prompt windows asking me to enter my password. Sometimes it works, ...
1
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0answers
51 views

How to use a proxy that requires authorization without exposing credentials (username and password)

There are knows ways to setup internet and system updates access through a proxy by setting the environment variables (http_proxy=) and/or updates' config options (like Acquire::Http::Proxy). There ...
1
vote
0answers
21 views

Apache Authentication

I configured the authentication on Apache2 with .htaccess and .htpasswd files. Now my problem is that when I close the browser or the browser tab, remain logged in without me being prompted for ...
1
vote
0answers
264 views

Can't SSH with Key Authentication

I created an RSA keypair using ssh-keygen on Ubuntu Desktop 14.04.2 LTS ssh-keygen -b 2048 -t rsa -f ~/.ssh/<keyname> -o Than I added the public key to the remote Ubuntu Server 14.04.2 LTS ...
1
vote
0answers
305 views

Why do I have to set usePAM to 'no' to manage a ssh connection?

I have a system user named user1 (the main one). I've tried to set a ssh connection between a user named foreignuser and the main one (user1). For that, I've generated a couple of keys with ...
1
vote
0answers
354 views

Can someone help me escape Skype and use Ekiga?

I really want to escape from Skype because its Linux support is abysmal and its ethics questionable. The most prominent alternative seems to be Ekiga, but I just can't get it working. Could someone ...
1
vote
0answers
331 views

Authentication not working properly after using fingerprint authentication in Ububtu 14.04

I installed fingerprint-gui to use fingerprint scanner in my thinkpad. The commands used were sudo apt-add-repository ppa:fingerprint/fingerprint-gui && sudo apt-get update sudo ...
1
vote
0answers
1k views

What is the correct way to modify /etc/pam.d/common-auth?

By default /etc/pam.d/common-auth looks like this $ cat /etc/pam.d/common-auth # # /etc/pam.d/common-auth - authentication settings common to all services # # This file is included from other ...
1
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0answers
90 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 ...
1
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0answers
96 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 ...
1
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0answers
417 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 ...
1
vote
0answers
422 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 ...
1
vote
0answers
46 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 ...
1
vote
0answers
47 views

Why does sudo sometimes asks for a different sudo user?

i have all my boxes setup to authenticate against openldap. when i logon with the local user (localmin) and run a command like; sudo service smbd restart it sometimes asks for the password of ...
1
vote
0answers
47 views

I have upgraded my system from 12.04 to 14.04 after restart when im tried to login authenication error came

I have upgraded my system from 12.04 to 14.04. After restart, when I tried to login, an authentication error came. After that, I used sudo apt-get install -f and rebooted the system. I didn't get any ...
1
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0answers
133 views

sshd_config file is being overwritten on reboot

I need an AWS server to accept password authentication and whenever I remove the hash and set PasswordAuthentication yes After reboot or create image and launch a new instance, the # is added back ...
1
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0answers
34 views

What encryption and authentication algorithms does vsfpd use by default?

I have followed this guide and was able to transfer files using SFTP, I want to know the encryption and authentication algorithms used by default in that file transfer.
1
vote
0answers
253 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 ...
1
vote
0answers
706 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
votes
0answers
20 views

Authenticate user agains Active Directory LDAP

I'm trying to let users login on a Ubuntu 16.04 Desktop with their active directory user/pass. I'm using pam/ldap to do so, but I'm running into a problem when the rebinding occurs. I have a ...
0
votes
0answers
19 views

No “authenticate” code

I'm trying to add some software to Ubuntu, but it asks me to "authenticate". But I can't authenticate because Ubuntu was given to me by an old room mate who is long gone. My computer is old, and the ...
0
votes
0answers
12 views

Authenticate to suspend?

Fresh install of LUbuntu 16.04 on a Compaq CQ58 (El cheapo AMD C60 laptop from Wal*Mart, bought on Black Friday 2012.) I walk away from it and it's supposed to suspend. I come back to an ...
0
votes
0answers
15 views

sssd ldap authentication freezing keyboard and connection

I have a working configuration of sssd authentication with active directory Windows 2012 R2 on CentOS 7 (provider ldap because I don't want to use kerberos) I ported it on ubuntu 16.04 and 14.04. Its ...
0
votes
0answers
13 views

How to make a user eligible for admin tasks authentication via gnome authentication gui?

I have a user that has admin privileges via sudoers directives. However, when the user needs to run administrative tasks via GUI, e.g. add a new printer via System Settings, it cannot be ...
0
votes
0answers
9 views

Journale of RADIUS server

i want to see the access(times ,actions) of client to the RADIUS server, what's the command to view the the file log of RADIUS server plz
0
votes
0answers
19 views

How to overwrite PAM rule from `common-auth` ? (`nullok` to make sshd accept empty passwords)

I got advice to change pam configuration (as I look for a way to make ssh user with empty password): sudo sed -i 's/nullok_secure/nullok/' /etc/pam.d/common-auth However in /etc/pam.d/common-auth I ...
0
votes
0answers
135 views

Ubuntu 16.04 doesn't support PEAP authentication without CA certificate

In our college, we have PEAP authentication system for LAN Authentication. With the new Ubuntu update to 16.04, the PEAP Authentication asks for the password again and again and doesn't connect. It ...
0
votes
0answers
50 views

Unable to connect to internet behind proxy using terminal in ubuntu 14.04

I am having trouble while running sudo apt-get update. It is asking for proxy authentication, even ping google.com not working. Though I have updated apt.conf file at /etc/apt/ location but still not ...
0
votes
0answers
12 views

How to auto open web browser on network connect

Sometimes when I come across certain networks i.e. (school, work etc.) that need me to open my web browser to authenticate. Does anyone know how I can make it so when I connect to a specific SSID ...