Linux——账号安全、su切换用户、PAM认证模块、sudo提权、开关机安全控制

1、

https://blog.csdn.net/weixin_51613313/article/details/110430012?utm_medium=distribute.pc_relevant.none-task-blog-OPENSEARCH-3.control&dist_request_id=26474e79-9fa4-4824-b2e1-10bd98898dc1&depth_1-utm_source=distribute.pc_relevant.none-task-blog-OPENSEARCH-3.control

2、设置grub启动编辑密码

https://www.linuxprobe.com/centos7-grub-password.html