Describe désert/workarea/2022-11-16 here.

Step 1: 备份etc目录配制

tar -zcvf etc_$(date +%F).tar.gz /etc/

Step 2: 修改/etc/pam.d目录中的system-auto文件为指定的参数

cat >> /etc/pam.d/system-auth <<EOF
### $(date +%F) added ###
password    requisite     pam_pwquality.so try_first_pass local_users_only retry=3 authtok_type= minlen=8 lcredit=-1 ucredit=-1 dcredit=-4 ocredit=-1 enforce_for_root
EOF

Step 3: 修改/etc/pam.d目录中的login文件为指定的参数

cat >> /etc/pam.d/login <<EOF
### $(date +%F) added ###
auth     required       pam_tally2.so deny=5 unlock_time=300 even_deny_root root_unlock_time=300
auth     required       pam_env.so
auth     required       pam_unix.so
auth     required       pam_nologin.so
account  required       pam_unix.so
password required       pam_unix.so
session  required       pam_limits.so
session  required       pam_unix.so
session  required       pam_lastlog.so nowtmp
session  optional       pam_mail.so standard
EOF