阿里云CentOS7 打开/关闭防火墙 开放端口

#查看防火墙状态#

systemctl status firewalld

#关闭防火墙#

systemctl stop firewalld

#打开防火墙#

systemctl start firewalld

#添加开放2375端口#

firewall-cmd --add-port=2375/tcp --permanent

#重载入添加的端口#

firewall-cmd --reload

#查询2375端口是否开启成功#

firewall-cmd --query-port=2375/tcp