查看防火墻狀態(tài)

systemctl status firewalld

打開防火墻

systemctl start firewalld

關閉防火墻

systemctl stop firewalld

開機開啟防火墻

systemctl enable firewalld

開機禁用防火墻

systemctl disable firewalld

安裝防火墻

sudo apt-get install firewalld

開放端口tcp500

firewall-cmd --add-port=500/tcp --permanent

firewall-cmd --reload

關閉端口

firewall-cmd --remove-port=500/tcp?--permanent

firewall-cmd --reload

查看開放的端口

firewall -cmd --list-all

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原文鏈接：https://blog.csdn.net/sinat_38259539/article/details/122054481

https://blog.csdn.net/qq_33764934/article/details/110133011