CentOS------常用命令

1.使用root登录

su root

2.查看ip地址

ip addr

3.端口使用部分

//查看开放端口
firewall-cmd --zone=public --list-ports

//开放端口（例子：开放6379端口）
firewall-cmd --zone=public --add-port=6379/tcp --permanent

//关闭端口
firewall-cmd --zone=public --remove-port=5672/tcp --permanent

//查看防火墙状态
firewall-cmd --state
systemctl status firewalld

//启动防火墙/允许开机启动
systemctl start firewalld
systemctl enable firewalld

//关闭防火墙/禁止开机启动
systemctl stop firewalld.service
systemctl disable firewalld

//重启防火墙
systemctl restart firewalld

//静止防火墙开机启动
systemctl disable firewalld.servic