Set Password Minimum Length in login.defs
Cette page n'est pas encore disponible en français, sa traduction est en cours.
Si vous avez des questions ou des retours sur notre projet de traduction actuel,
n'hésitez pas à nous contacter.
Description
To specify password length requirements for new accounts, edit the file
/etc/login.defs
and add or correct the following line:
The DoD requirement is 15
.
The FISMA requirement is 12
.
The profile requirement is
12
.
If a program consults /etc/login.defs
and also another PAM module
(such as pam_pwquality
) during a password change operation, then
the most restrictive must be satisfied. See PAM section for more
information about enforcing password quality requirements.
Rationale
Requiring a minimum password length makes password
cracking attacks more difficult by ensuring a larger
search space. However, any security benefit from an onerous requirement
must be carefully weighed against usability problems, support costs, or counterproductive
behavior that may result.