FTP access other server error 227 if passive mode (160,30,11,1,196,2), the other party only allow access through the passive mode, the client if you modify, please?

I am a network mapping through the network access server, the firewall only opened the ports 21 of the other party, whether to need to open to the other side of the other ports?

CodePudding user response:

FTP active mode and passive mode and active mode does not need to open more of a service port, you just need to open the FTP service port, but the client needs, set up active mode can quickly access, otherwise it will default to use passive mode, after the failure of passive mode automatically switches into active mode, or inform the client on the server Settings using active mode

And passive mode requires additional open port to the client take the initiative to access the server to do data transmission connection, generally see traffic to determine how many ports (1 transmission thread 1 port)