ftp被动模式(Passive mode)无法连接的问题

被动模式响应的端口范围 PassivePortRange 39000 40000 端口链接

腾讯云安全组开放 TCP:30000-40000

https://blog.hackroad.com/operations-engineer/linux_server/9839.html

http://bbs.qcloud.com/thread-1343-1-1.html

https://www.cnblogs.com/bkylee/p/5049564.html