# vi /etc/login.defs详细解释:
PASS_MAX_DAYS 99999
PASS_MIN_DAYS 0
PASS_MIN_LEN 5
PASS_WARN_AGE 7
# vi /etc/login.defs密码最小天数是什么?
PASS_MAX_DAYS 90
# vi /etc/login.defs密码警告天数是什么?
PASS_MIN_DAYS 15
# vi /etc/login.defs注意: 上面的所有参数仅对新账号有效,对已存在的账号无效。
PASS_WARN_AGE 10
# vi /etc/pam.d/system-auth密码最小长度是什么?
password sufficient pam_unix.so md5 shadow nullok try_first_pass use_authtok remember=5
# vi /etc/pam.d/system-authtry_first_pass retry=3:在密码设置交互界面,用户有 3 次机会重设密码。
password requisite pam_cracklib.so try_first_pass retry=3 minlen=12
# vi /etc/pam.d/system-auth设置最少的小写字母个数?
password requisite pam_cracklib.so try_first_pass retry=3 minlen=12 ucredit=-1
# vi /etc/pam.d/system-auth设置密码中最少的数字个数?
password requisite pam_cracklib.so try_first_pass retry=3 minlen=12 lcredit=-1
# vi /etc/pam.d/system-auth设置密码中最少的其他字符(符号)个数?
password requisite pam_cracklib.so try_first_pass retry=3 minlen=12 dcredit=-1
# vi /etc/pam.d/system-auth设置账号锁定?
password requisite pam_cracklib.so try_first_pass retry=3 minlen=12 ocredit=-1
# vi /etc/pam.d/system-auth设定账号解锁时间?
auth required pam_tally2.so onerr=fail audit silent deny=5
account required pam_tally2.so
# vi /etc/pam.d/system-authvia:
auth required pam_tally2.so onerr=fail audit silent deny=5 unlock_time=900
account required pam_tally2.so
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