Weak password: not enough different characters or classes.

Для нового класса студентов понадобилось установить какой-нибудь простенький пароль на cellmonitor. Однако возникла Problem:

[root@ed01cel02 cellos]# passwd cellmonitor
Changing password for user cellmonitor.

You can now choose the new password or passphrase.

A good password should be a mix of upper and lower case letters,
digits, and other characters.  You can use a 5 character long
password.

A passphrase should be of at least 3 words, 5 to 40 characters
long and contain enough different characters.

Alternatively, if noone else can see your terminal now, you can
pick this as your password: "please_goal!Burma".

Enter new password:

Weak password: not enough different characters or classes.

Try again.

Solution: change enforce=everyone ->  enforce=none

[root@ed01cel02 cellos]# cd /etc/pam.d/

[root@ed01cel02 pam.d]# cat system-auth
#%PAM-1.0
# This file is auto-generated.
# User changes will be destroyed the next time authconfig is run.
auth        required      pam_env.so
auth        required    pam_unix.so try_first_pass nullok
#auth        required      pam_deny.so

account     required      pam_unix.so

password    requisite     pam_passwdqc.so min=5,5,5,5,5 similar=deny enforce=everyone max=40
password    sufficient    pam_unix.so try_first_pass use_authtok nullok md5 shadow remember=10
password    required      pam_deny.so

session     optional      pam_keyinit.so revoke
session     required      pam_limits.so
session     [success=1 default=ignore] pam_succeed_if.so service in crond quiet use_uid
session     required      pam_unix.so

End think about return enforce=everyone back after new password is set