Set short password Ubuntu 22.04

Question

I can't set a short password in the user change password.

Additionally, I tried implementing the solutions of question, but none of them worked for me.

score 9 · Answer 1 · answered Jun 20 '22 at 09:54

9

Run sudo passwd <your-username> from the terminal. When run by root (sudo), passwd program should ignore all password policies set in PAM configuration. It will complain that the password does not meet the requirements, but will set it anyway.

answered Jun 20 '22 at 09:54

raj

10,353

1

This method may get conflict with the Desktop - GUI login. – Mahdi Rezazadeh Jun 20 '22 at 09:58
Why? If you set password via passwd, GUI login will just use it. – raj Jun 20 '22 at 10:44
3

Thanks for adding that it may complain but will set it anyway. It seemed to me that "BAD PASSWORD: The password is shorter than 8 characters" means it's rejected. – Alan Dec 29 '22 at 07:49

score 2 · Answer 2 · edited Nov 10 '22 at 06:03

2

root@dlp:~# vi /etc/security/pwquality.conf
# line 11 : uncomment and set minimum length (example below means 8 char)

minlen = 8

source: https://www.server-world.info/en/note?os=Ubuntu_22.04&p=pam&f=1

edited Nov 10 '22 at 06:03

Journeyman Geek

3,013

answered Nov 10 '22 at 05:55

chen yang

21

Note: In Ubuntu >= 22.X this value cannot be set to a value lower than 6. – FireEmerald Mar 28 '24 at 21:40

score 1 · Answer 3 · answered Jun 18 '22 at 19:13

I can't set a short password in the user change password.

Correct. It follows the "password policy" set for all Linux systems:

By default, all Linux operating systems requires password length of minimum 6 characters for the users.

If you really want to change it use this:

sudo nano /etc/pam.d/common-password

and find this line:

password        [success=1 default=ignore]      pam_unix.so obscure yescrypt

and add minlen=N where N is the minimal length you want it to be. Default is 6.

If all you want is to change the password to a short one please do stay away from editing it. It is easier to just use command line for this. It needs to be like this to bypass password policies:

sudo passwd $USER

Plain passwd will also complain about the length (it uses the same setting as above)

I changed the /etc/pam.d/common-password based on your answer, but I can't set short password in User settings yet :( — Mahdi Rezazadeh, Jun 20 '22 at 09:43

Set short password Ubuntu 22.04

3 Answers3