The server initiates the connection in active mode , and the client activates the connection in passive mode 服务器使用主动模式启动连接，客户端使用被动模式启动连接。
Visual web developer can establish connections to the ftp server in two modes : active mode and passive mode Visual web developer可以以两种模式建立到ftp服务器的连接：主动模式和被动模式。
This was known as passive mode , or pasv , after the command used by the client to tell the server it is in passive mode 这就是所谓的被动模式，或者叫做pasv ，当客户端通知服务器它处于被动模式时才启用。
In active mode , the server initiates the data connection , and in passive mode , the client initiates the data connection 在主动模式下，由服务器初始化数据连接；而在被动模式下，由客户端初始化数据连接。
Specifies that the ftp connection should be established using passive mode , where the client visual web developer initiates connections for both the command port and the data port 指定应该使用被动模式建立ftp连接，这样客户端( visual web developer )会同时为命令端口和数据端口启动连接。
