CentOS 開放端口

1、先檢查防火牆 查看防火牆狀態 # systemctl status firewalld 關閉防火牆 # systemctl start firewalld 開啓防火牆 # systemctl stop firewalld        顯然看到running是開啓狀態  dead未開啓 2、目標端口 查看8080端口  # firewall-cmd --query-port=8080/tcp

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