首要条件防火墙是开启的 systemctl start firewalld 查看防火墙的配置 firewall-cmd --state firewall-cmd --list-all 开放端口 firewall-cmd --permanent --add-port=80/tcp firewall-cmd --reload #重新加载防火墙配置才会起作用 移除端口 firewall-cmd --permanent --remove-port=80/tcp firewall-cmd --reload 放通某个端口段 firewall-cmd --permanent --zone=public --add-port=1000-2000/tcp firewall-cmd --reload 放通某个IP访问，默认允许 firewall-cmd --permanent --add-rich-rule='rule family=ipv4 source address=192.168.1.169 accept' firewall-cmd --reload 禁止某个IP访问 firewall-cmd --permanent --add-rich-rule='rule family=ipv4 source address=10.0.0.42 drop' firewall-cmd --reload 放通某个IP访问某个端口 firewall-cmd --permanent --add-rich-rule='rule family=ipv4 source address=192.168.1.169 port protocol=tcp port=6379 accept' firewall-cmd --reload 移除某个IP访问某个端口 firewall-cmd --permanent --remove-rich-rule='rule family="ipv4" source address="192.168.1.169" port port="6379" protocol="tcp" accept' firewall-cmd --reload 放通某个IP段访问 firewall-cmd --permanent --add-rich-rule='rule family=ipv4 source address=10.0.0.0/24 accept' firewall-cmd --reload 移除某个IP段访问 firewall-cmd --permanent --remove-rich-rule='rule family=ipv4 source address=10.0.0.0/24 accept' firewall-cmd --reload