firewall-cmd --zone=public --permanent --add-port=1234/tcp
firewall-cmd --zone=public --remove-port=1234/tcp
firewall-cmd --zone=public --list-ports
firewall-cmd --reload
Linux 随机数
cat /proc/sys/kernel/random/uuid
firewall-cmd --zone=public --permanent --add-port=1234/tcp
firewall-cmd --zone=public --remove-port=1234/tcp
firewall-cmd --zone=public --list-ports
firewall-cmd --reload
Linux 随机数
cat /proc/sys/kernel/random/uuid