cmd中ftp如何获取服务器文件,在cmd中登录ftp服务器

To get real information on why the connection is stuck, you're going to have to use a client that logs all of the protocol commands to see what's really happening. Theres a good site on FTP with example logs here.

Most likely though, either

your client is behind a (dumb, or else SSL-blocked) firewall and is trying to use Active-mode FTP

your server is behind a (dumb, or else SSL-blocked) firewall and is trying to use Passive-mode FTP

If you're using SSL, the only answer is to open a range of ports (say, 10000-11000) on the firewall and configure your FTP server to force Passive mode and use that port range. If your server is using NAT you'll also need to set up the proper IP address for the server to advertise to clients, most obey whatever the server provides as the passive mode connection string and if the server thinks it's 10.1.1.1, that's what it's going to tell the clients.

If you're not using SSL, the best answer is to see if you can get your firewall to do protocol inspection for FTP. The firewall will read the traffic on port 21 and open whatever port your server wants open. This can often fix NAT addresses as well (when the firewall is also handling the NAT). You'll probably still want to force passive mode since some people don't know how to configure their FTP client properly and nearly everyone is behind a broadband router/firewall these days.

If you can't get a smarter firewall, then you'll have to stick to the "open a bunch of ports" option (or switch to a protocol that doesn't need to open a bunch of random ports like ssh's sftp).