Linux防火墙 firewall-cmd
开启防火墙
systemctl start firewalld.service
防火墙开机启动
systemctl enable firewalld.service
关闭防火墙
systemctl stop firewalld.service
查看防火墙状态
firewall-cmd --state
查看防火墙规则
firewall-cmd --zone=public --list-ports
开放端口
firewall-cmd --permanent --zone=public --add-port=81/tcp
开放多端口
firewall-cmd --permanent --zone=public --add-port=8080-8083/tcp
开放IP端口
firewall-cmd --permanent --add-rich-rule="rule family="ipv4" source address="192.168.142.166" port protocol="tcp" port="6379" accept"
firewall-cmd --permanent --add-rich-rule="rule family="ipv4" source address="192.168.0.233" accept"
开放IP段端口
firewall-cmd --permanent --add-rich-rule="rule family="ipv4" source address="192.168.0.0/16" accept"
firewall-cmd --permanent --add-rich-rule="rule family="ipv4" source address="192.168.1.0/24" port protocol="tcp" port="9200" accept"
删除端口
firewall-cmd --permanent --zone=public --remove-port=81/tcp
删除IP端口
firewall-cmd --permanent --remove-rich-rule="rule family="ipv4" source address="192.168.1.51" accept"
重载防火墙
firewall-cmd --reload