https://blog.csdn.net/oschina_41140683/article/details/89844081
Linux添加用户adduser tommy #添加一个名为tommy的用户 passwd tommy #修改密码CentOS防火墙操作active(running)为防火墙开启inactive(dead)为防火墙关闭# 查看防火墙状态 systemctl status firewalld # 关闭防火墙 systemctl stop firewalld # 打开防火墙 syste...