firewalld firewall-cmd 常用命令

# 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

# 查看现有的规则
iptables -nL
firewall-cmd --zone=public --list-ports

# 重载防火墙配置
firewall-cmd --reload

# 添加单个单端口
firewall-cmd --permanent --zone=public --add-port=81/tcp

# 添加多个端口
firewall-cmd --permanent --zone=public --add-port=8080-8083/tcp

# 删除某个端口
firewall-cmd --permanent --zone=public --remove-port=81/tcp

# 删除 ssh 端口
firewall-cmd --remove-port=22/tcp --permanent
firewall-cmd --remove-service=ssh --permanent 

# 针对某个 IP开放端口
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"

# 删除某个IP
firewall-cmd --permanent --remove-rich-rule="rule family="ipv4" source address="192.168.1.51" accept"

# 针对一个ip段访问
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"

# 添加操作后别忘了执行重载
firewall-cmd --reload

# 查看当前起作用的zone
firewall-cmd --get-active-zones 

当遇到不方便重载的时候，可以使用

firewall-cmd --zone=public --add-port=80/tcp

# 在 /etc/firewalld/zones/public.xml 下 <zone> </zone>标签中添加
<port protocol="tcp" port="80"/>
# 或 针对源IP地址端添加
 <rule family="ipv4">
    <source address="192.168.1.0/24"/>
    <port protocol="tcp" port="80"/>
    <accept/>
  </rule>