1、firewalld的基本使用
启动: systemctl start firewalld
关闭: systemctl stop firewalld
查看状态: systemctl status firewalld
开机禁用 : systemctl disable firewalld
开机启用 : systemctl enable firewalld
2.systemctl是CentOS7的服务管理工具中主要的工具,它融合之前service和chkconfig的功能于一体。
启动一个服务:systemctl start firewalld.service
关闭一个服务:systemctl stop firewalld.service
重启一个服务:systemctl restart firewalld.service
显示一个服务的状态:systemctl status firewalld.service
在开机时启用一个服务:systemctl enable firewalld.service
在开机时禁用一个服务:systemctl disable firewalld.service
查看服务是否开机启动:systemctl is-enabled firewalld.service
查看已启动的服务列表:systemctl list-unit-files|grep enabled
查看启动失败的服务列表:systemctl --failed
3.配置firewalld-cmd
查看版本: firewall-cmd --version
查看帮助: firewall-cmd --help
显示状态: firewall-cmd --state
查看所有打开的端口: firewall-cmd --zone=public --list-ports
firewall-cmd --list-all
更新防火墙规则: firewall-cmd --reload
查看区域信息: firewall-cmd --get-active-zones
查看指定接口所属区域: firewall-cmd --get-zone-of-interface=eth0
拒绝所有包:firewall-cmd --panic-on
取消拒绝状态: firewall-cmd --panic-off
查看是否拒绝: firewall-cmd --query-panic
4.端口映射
查看配置firewall-cmd --zone=external --list-forward-ports
firewall-cmd --zone=external --add-forward-port=port=1022:proto=tcp:toport=22:toaddr=192.168.122.2 --permanent
firewall-cmd --zone=external --remove-forward-port=port=2022:proto=tcp:toport=22:toaddr=192.168.122.3 --permanent
firewall-cmd --zone=external --remove-forward-port=port=1122:proto=tcp:toport=22:toaddr=192.168.122.2 --permanent
firewall-cmd --reload
那怎么开启一个端口呢
添加
firewall-cmd --zone=public --add-port=80/tcp --permanent (–permanent永久生效,没有此参数重启后失效)
firewall-cmd --permanent --add-rich-rule="rule family="ipv4" source address="192.168.142.166" port protocol="tcp" port="5432" accept"
firewall-cmd --permanent --add-rich-rule="rule family="ipv4" source address="19.134.192.106" port protocol="tcp" port="8080" accept"
firewall-cmd --permanent --add-rich-rule="rule family="ipv4" source address="172.17.0.6" port protocol="tcp" port="8090" accept"
重新载入
firewall-cmd --reload
查看
firewall-cmd --zone= public --query-port=80/tcp
删除
firewall-cmd --zone= public --remove-port=80/tcp --permanent
删除iptables规则
iptables -F
iptables-save
来源:https://www.cnblogs.com/deathmen/p/12371626.html