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

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22 views

First Time Ubuntu user, problem authenticating app download

I am new to ubuntu... as in just installed it a little bit ago. I no nothing about ubuntu but thought it would be a fun thing to explore a new operating system. I got it installed ok and was ...
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0answers
169 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, ...
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1answer
231 views

“System Program Problem Detected” at login

I keep getting the system report of system programs: the action is com.ubuntu.apport.apport-gtk-root. Why is this happening? Should I authenticate it? I haven't allowed it since I'm not sure what ...
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0answers
88 views

Why is “authentication” not working with my user login password?

I'm trying to install Steam. I've downloaded it then right click the folder and hit "Open with Software Center". When I attempt to install, it asks for a password to authenticate. So I typed in my ...
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2answers
35 views

What password do you use when your installing or delleting app? [duplicate]

When I attempt to install software, I am prompted for a password. What is this password? Software to be installed Password Prompt
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0answers
217 views

kerberos passwd: Authentication token manipulation error

(note - ignore the upgrade 15.10 bit, see "more info", below) I've just upgraded to Ubuntu 15.10 using the Live CD over an existing 14.04 version. Users that were configured before were lost from ...
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0answers
13 views

How to make Apache2 login using PAM and access files using file system permissions?

I've searched & Googled for hours but haven't found recent solutions (re: PAM, mod_auth_pam or something ... is obsolete). I want users to login using their ubuntu usernames and password, so I'm ...
2
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1answer
1k views

Radius Ignoring request to authentication address

Radius only works if i use localhost i can't use its ip address. Output of: radtest user password localhost 1812 testing123 Sending Access-Request of id 251 to 127.0.0.1 port 1812 User-Name = ...
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28 views

Authenticated OpenVPN before User Authentication

Is it possible to prompt the user for OpenVPN credentials before they are required to login? Our problem is that the ubuntu laptops we distribute use LDAP for authentication, but since our LDAP is ...
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0answers
28 views

Sudo: chronic authentication failure on X operations

Sudo works fine from the command-line, but I've never been able to get authentication to work right when a GUI asks for it. Starting X apps from the command-line w/sudo sort of works, but causes weird ...
1
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1answer
107 views

How to fix sudo due to pam error

The short story is that I can SSH into my device with the a username and password that should be in the superuser group (so I should be able to sudo su). The problem is that I was trying to increase ...
5
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2answers
274 views

putty key -> connection refused (permissions OK, /var/log/auth.log is empty)

I already checked here: Trying to do ssh authentication with key files: server refused our key and I did all these: *new: generated key(s) via ssh-gen in a Linux client. added the public key to ...
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0answers
59 views

How can I debug /etc/ldap.conf mapping?

I'm trying to configure an ldap client. I'm almost successfull (LDAP server is answering requests) but: In the /etc/ldap.conf, mapping configuration seems to be broken map passwd uid login map ...
2
votes
1answer
2k views

How to connect to sftp in filezilla using private key

I've downloaded filezilla on Ubuntu 14.04 using the package manager (apt-get) and I'm currently setting up a site to transfer files for on the remote server I'm using. For the login type, I need to ...
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0answers
32 views

Random Requests for Authentication

I have an unusual problem on my system which I don't seem to be able to find much information about anywhere. When I log into my account, switch to another account or the global login screen, and then ...
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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 ...
0
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1answer
52 views

Clients and a server connection by SSH with authentication key usage

What is the way to share a server's SSH key to clients to allow them connect by SSH to that server? In the every manual about SSH authentication a connection between clients and server through ...
0
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1answer
56 views

set up two factor authentication with Google but only if a public key is not used

I have key setup from host1 to host2 and host2 to host1 for SSH. I want to setup two factor authentication with Google on host1 and host2 but only if the incoming connection is from another place. So, ...
0
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1answer
116 views

Can't connect to ubuntu 14.04 from android using ssh

I have a laptop, a desktop and an android phone(Moto G) connected to the same wifi network at home. I had installed openssh-server on my laptop and desktop and could connect between them using ssh. I ...
4
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0answers
22 views

Cannot install app from Software Center - Requires installation of untrusted packages [duplicate]

So, I've purchased an app from Ubuntu Software Center. The problem is that I cannot install it. Whenever I try to click Install this appears: Requires installation of untrusted packages ...
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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 ...
2
votes
1answer
33 views

how to check what incorrect password as attempted

In /var/logs/auth.log I can see the unsuccessful login attempts. They are like lines below: Oct 16 05:04:02 myMachine unix_chkpwd[15793]: password check failed for user (user1). Now is there a way ...
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1answer
63 views

Ubuntu keeps asking me for Gmail passworld

I'm using Ubuntu 15 and everything was fine till i decided to use evolution. Evolution failed to connect to Gmail and since then it asks me to enter my password for my Google account. according to ...
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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 ...
2
votes
1answer
51 views

amount of attempts Authentication password

Is there an amount of attempts when I forget the authentication password? Like Iphone or something when after 3 times the phone is locked for 30 sec, and after that for 5 minutes (and so on..)? I ...
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0answers
27 views

Authentification problems in Ubuntu 14.04 [duplicate]

My admin password is not accepted. All the solutions given in similar posts require to enter a password at some point, but in my case it is never accepted. Caps lock is not on, it just doesn't work. I ...
2
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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 ...
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0answers
125 views

User cannot login using Putty

User1 can login to the Ubuntu 12.04 server using Putty fine. User2 cannot login using Putty and gets access denied. When I login as user2 from the VMware console it logs in fine so the password is ...
0
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1answer
42 views

How to prevent loggin in via ssh as my domestic user?

Hi i am kind of a newb in ssh but i setup a domestic server in a laptop. I have a user called e.g. USERBRUNO with a password authentication required. The problem is that if my friend does ssh ...
1
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1answer
120 views

Equivalent Ubuntu network configuration

I have a windows 7 machine (already configured to connect to the LAN) and a Ubuntu 15.04 machine (yet to be configured to connect to the LAN). On Windows 7, the configuration is as follows 802.1x ...
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2answers
166 views

Problems with su: Authentication Failure

I am currently using Ubuntu and am 100% new to Unix. I have installed Ubuntu to program in C and will be using the "Learn C the Hard Way" online textbook ...
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0answers
87 views

Squid Proxy Server not working using my private dns when in DMZ

I configured a squid proxy server using ntlm-active directory authentication which works fine when deployed in the LAN but when I move it to the DMZ, the authentication fails and hence clients are ...
0
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1answer
47 views

After Installing Ubuntu College LAN not working?

After installing Ubuntu college LAN is not working in Ubuntu but still working with windows 10. College LAN uses IEEE 802.1x authentication by username and password but not working on Ubuntu?
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0answers
360 views

Possible security issue? (syslog connect messages)

I was just looking through my syslog and noticed theese lines repeating over and over almost endlessly: Aug 25 16:52:56 xxx-xxx-xxx-xxx postfix/smtpd[9572]: connect from ...
0
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1answer
368 views

`sudo`, `gksu` and `gksudo` without password

In Fedora, I am surprised that if my administrator account does not have a password, sudo, gksu and gksudo won't prompt me for one! (it is not caused by /etc/sudoers). In Ubuntu, they will ask me for ...
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0answers
16 views

Trying to download updates can't remember password [duplicate]

I am new to Ubuntu 14.04 LTS and having problems downloading updates to the system. Every time the system prompts to the software repository setting authentication it prompts for a password. Now I ...
0
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1answer
78 views

Why does the Software Updater allow me to update the package list without authentication unlike in Terminal? [duplicate]

I have found recently that when running the Software Updater GUI it automatically, without asking for authentication, updates the local package list, but when running the equivalent in Terminal ...
1
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1answer
155 views

APT-GET behind a proxy with DIGEST Authentication

I've edited apt.conf, applied "system wide configuration", edited /etc/enviroment, etc... but out of luck. My company is running a Squid proxy with DIGEST authentication, which I think APT doesn't ...
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0answers
91 views

About Mail `Authentication Request`?

I've installed Evolution, after that I've opened it, from that on-wards still I'm getting the mail Authentication Request as given below, I've uninstalled Evolution though,still at each time of ...
0
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0answers
86 views

KDE “Authentication Errors”

I am having trouble using package managers on KDE. I have both Muon Package Manager and Apper installed, but both fail to ask for a password and give the error that I have "not authenticated". I have ...
0
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0answers
55 views

Ubuntu Server Network Authentication

I have a dual boot system. When I boot into Windows and I open Internet Explorer, I am asked for my user name and password credentials. Once I do that, I am granted access to the internet. When I ...
0
votes
1answer
72 views

Authentication failure in Hadoop

I have already installed Hadoop and already added user as hduser to group, but I have forgotten the password of the user i.e. hduser. When running su hduser from the terminal I get the result: su: ...
0
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1answer
216 views

Change password on Ubuntu client using LDAP Authentication

I've setup a computer lab running Ubuntu 14 clients and an Ubuntu 14 server. The clients are successfully logging in using credentials provided by Open LDAP. I used this guide to configure the ...
0
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0answers
242 views

Prevent multiple login in squid authentication

I am using a php script that read a sql database to authenticate squid3 proxy users on a ubuntu server 14.04. However it allows multiple simultaneous logins with the same username and password from ...
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 ...
0
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0answers
55 views

unable to install ubuntu software due to proxy authentication error in 14.04

Unable to install vlc via command sudo apt_get install vlc it shows error 407 proxy authentication required
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0answers
398 views

Something wrong in 14.04 LTS with ssh when no password is authorized by remote server

After loosing days for a solution (including here), I will ask more expert people about a way to connect a new desktop ubuntu 14.04.LTS to some ubuntu 14.04 LTS servers accessible only by using a ...
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0answers
65 views

How to check if a switch is configured in 'ssh' or in 'telnet' using perl script provided the switch IP is available…?

In a perl script, when a switch IP is available, it is required to know if the switch is configured for 'ssh' or 'telnet' for continuing execution. How can this be done..? Please help it...
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0answers
436 views

FreeIPA equivalent for Ubuntu Server 14.04

For my small business I have a primary work server (Dell T320) running Ubuntu 14.04. This is my host OS for the KVM Visualization platform - which in turn runs a virtual Firewall, an MS Server 2012R2 ...
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0answers
376 views

after modifying the olcDatabase={1}hdb getting error “this base cannot be created by PLA”

This is the actual configuration file for the olcDatabase={1}hdb. # AUTO-GENERATED FILE - DO NOT EDIT!! Use ldapmodify. # CRC32 be185314 dn: olcDatabase={1}hdb objectClass: olcDatabaseConfig ...