Ubuntu Documentation > Ubuntu 9.04 > Ubuntu Server Guide > Security > User Management states that there is a default minimum password length for Ubuntu:
By default, Ubuntu requires a minimum password length of 4 characters
Say the password is to be modified by the user using
passwd. Is there a command for displaying the current password policies for a user (such as the
chage command displays the password expiration information for a specific user)?
> sudo chage -l SomeUserName Last password change : May 13, 2010 Password expires : never Password inactive : never Account expires : never Minimum number of days between password change : 0 Maximum number of days between password change : 99999 Number of days of warning before password expires : 7
This is rather than examining various places that control the policy and interpreting them since the process could contain errors. A command that reports the composed policy would be used to check the policy setting steps.
This question, How to display password policy information for a user (Ubuntu)?, was posted on superuser but the request for it to be migrated to here was refused.