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