Linked Questions

1
vote
5answers
34k views

Authenticate user that has no password? [duplicate]

I've set up my user account so that no password is required to login and I need to install some updates. However when prompted for the password, it says authentication failed if I leave the box blank....
8
votes
1answer
2k views

Why sudo passwd username keeps asking for the current password [duplicate]

I am in a bizarre situation, that I can't reset user's password on my machine (Ubuntu 16.04) using eighter sudo passwd username or passwd username from the root account. root@adam-minipc:~ # passwd ...
0
votes
1answer
556 views

Single user forgot password can't do updates [duplicate]

I'm using Ubuntu 14.04 and like it very much but I can't update anything because I forgot my password and authentication is required. This is a home computer and I am a single user who doesn't even ...
1
vote
0answers
316 views

Cannot change password for local account [duplicate]

I have a non-root, local account where I have been unable to use 'passwd' as user root to change that password. The system is an AWS instance running Ubuntu 14.04 bound to Active Directory using both ...
0
votes
1answer
196 views

Password Problems [duplicate]

Whenever I try to change settings for the Admin account or download any files/programs it asks for a password. I do not know/remember this password. I've tried resetting it and making a new account ...
0
votes
2answers
189 views

Trying to change administrator password [duplicate]

I have tryed to change the password with the information that jorge castro has put up. when i get to the UNIX password change it says (Authentication token manipulation error) then says password ...
-2
votes
1answer
135 views

administrative passwd how to change it in the root [duplicate]

each time i go to the root and try to change my passwd an error occurs and it says authencation manipulation error or some thing like that.and btw the passwd s match. whoever knows whats happening ...
1
vote
0answers
37 views

Why 'passwd' rejects my current password, which is accepted in my login? [duplicate]

I am using Ubuntu 16.04.1 LTS through the Oracle VM Virtualbox. At the beginning of my installation, I was asked to set a password for my login, which works perfectly every time I log in to my virtual ...
141
votes
5answers
401k views

Authentication token manipulation error

I forgot my Ubuntu password so I booted into recovery and dropped into a root shell prompt and this is what happened: root@username-PC:~# passwd username Enter new UNIX password: Retype new UNIX ...
1
vote
2answers
8k views

Why I can't change my password in ubuntu?

I tried multiple times in terminal to change my password. but it throwing error but i filled up all requirements. naga@naga:~$ passwd Current password: New password: Re-enter password: ...
0
votes
1answer
5k views

Why does 'passwd' fail to change user's pw

** Term-control chars edited out: Script started on 2017-12-01 06:51:43-0500 /etc/bash.bashrc ~root/.bashrc declare -x PATH="/root/sbin:/usr/local/sbin:/usr/sbin:/sbin:/root/bin:/root/.emacs.d/term-...
3
votes
1answer
3k views

How to login into Ubuntu after an upgrade to 12.04?

Yesterday I upgraded from Ubuntu 11.10 to 12.04. The upgrade went smoothly. I did a restart and then strange things started to happen. After each upgrade I set my Ubuntu to automatic login(been ...
0
votes
1answer
1k views

How to check security on Ubuntu

Today while I was trying to install a new software via software center, my password stopped working, that was strange for me after that situation I tried searching askubuntu.com to reset my user ...
0
votes
1answer
1k views

Resetting my password through the root doesn't work

I went to the root, and then typed in "passwd username" except I used my username. Instead of giving me an option to change the password, it says "Usage: passwd [options] [LOGIN]" and then gives me ...
0
votes
1answer
1k views

Ubuntu 16.04, pbis, authentication token manipulation problem

I have a huge problem with my Ubuntu since I tried to change the password. My Desktop is connected with a windows domain using pbis-open. From time to time I have to change my domain password and ...

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