centos7以上添加端口

  1. 先查看firewalld是否开启

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    $ systemctl status firewalld
  2. 要是没有开启则开启

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    $ systemctl start firewalld
  3. 假设添加8000端口

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    $ firewall-cmd --permanent --add-port=8000/tcp
  4. 重启firewalld

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    $ systemctl restart firewalld
  5. 查看是否正确开启了端口

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    $ firewall-cmd --query-port=8000/tcp
  6. firewalld开机自启

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    $ systemctl enable firewalld