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