本文主要是介绍centos 7.4相关，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！
防火墙相关
systemctl stop firewalld.service
systemctl start firewalld.service
firewall-cmd --state
systemctl disable firewalld.service
firewall-cmd --query-port=10000/tcp
firewall-cmd --add-port=10000/tcp --permanent
firewall-cmd --add-service=test
systemctl restart firewalld.service
firewall-cmd --permanent --add-service=test
firewall-cmd --reload
firewall-cmd --permanent --remove-port=10000/tcp
firewall-cmd --permanent --remove-service=test
firewall-cmd --list-ports
firewall-cmd --list-services
netstat -ntlp
lsof -i tcp:80
systemctl unmask firewalld.service
firewall-cmd --list-services
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