建议修改/etc/login.defs下相关设置为:
PASS_MAX_DAYS 90
PASS_MIN_DAYS 2
PASS_WARN_AGE 8
PASS_MIN_LEN 7
修改/etc/pam.d/system-auth下相关设置为:
password requisite pam_cracklib.so minlen=8 ucredit=-1 lcredit=-1 dcredit=-1 ocredit=-1
注:ubuntu环境需要安装 apt -y install libpam-cracklib,修改文件为 /etc/pam.d/common-password
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