Fedora 32/33 - 刪除密碼強度強制

Fedora 32/33 不允許我為 root 和使用者選擇短密碼。在這種情況下，我想允許它，但我不能這樣做：

❯ sudo passwd
Changing password for user root.
New password: 
BAD PASSWORD: The password is shorter than 8 characters
Retype new password: 
passwd: Authentication token manipulation error

所以我試圖了解設置這些設置的 2 個文件，但我迷路了。

❯ cat /etc/pam.d/password-auth
# Generated by authselect 
# Do not modify this file manually.

auth        required                                     pam_env.so
auth        required                                     pam_faildelay.so delay=2000000
auth        [default=1 ignore=ignore success=ok]         pam_usertype.so isregular
auth        [default=1 ignore=ignore success=ok]         pam_localuser.so
auth        sufficient                                   pam_unix.so nullok try_first_pass
auth        [default=1 ignore=ignore success=ok]         pam_usertype.so isregular
auth        sufficient                                   pam_sss.so forward_pass
auth        required                                     pam_deny.so

account     required                                     pam_unix.so
account     sufficient                                   pam_localuser.so
account     sufficient                                   pam_usertype.so issystem
account     [default=bad success=ok user_unknown=ignore] pam_sss.so
account     required                                     pam_permit.so

password    requisite                                    pam_pwquality.so try_first_pass local_users_only
password    sufficient                                   pam_unix.so sha512 shadow nullok try_first_pass use_authtok
password    sufficient                                   pam_sss.so use_authtok
password    required                                     pam_deny.so

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

和

❯ cat /etc/pam.d/passwd
#%PAM-1.0
# This tool only uses the password stack.
password   substack system-auth
-password   optional    pam_gnome_keyring.so use_authtok
password   substack postlogin

在 Fedora 32 中，密碼質量配置文件是/etc/security/pwquality.conf和/etc/security/pwquality.conf.d/*

例如，最小密碼長度：

# Configuration for systemwide password quality limits
# Defaults:
#
# Minimum acceptable size for the new password (plus one if
# credits are not disabled which is the default). (See pam_cracklib manual.)
# Cannot be set to lower value than 6.
# minlen = 8

相關的手冊頁是pwquality.conf(5)和pam_pwquality(5)。

引用自：https://unix.stackexchange.com/questions/616464