Linux基本命令(四)——firewall

Linux centos7查看firewall状态及配置命令

• 查看firewall状态

  systemctl status firewalld
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• 锁定firewall

  systemctl mask firewalld.service
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• 解锁firewall

  systemctl unmask firewalld.service
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• 开启firewall

  systemctl start firewalld.service
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• 关闭firewall

  systemctl stop firewalld.service
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• 开机启动firewall

  systemctl enable firewalld.service
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• 关闭开机启动

  systemctl disable firewalld.service
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• 重载firewall

  firewall-cmd --reload
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• 移除端口

  firewall-cmd --zone=public --remove-port=80/tcp --permanent
  #
  firewall-cmd --permanent --remove-port=123/tcp
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• 查询已开放端口

  firewall-cmd --list-port
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