文件传输协议——FTP简介

A Brief Introduction of File Transfer Protocol

计算机之间数据的传输大多是通过文件传输协议FTP来完成的。FTP使用两个TCP连接来实现文件传送操作。FTP可以管理四类不同的文件类型,且可用多种模式传输文件。一个典型的FTP会话要经过四个阶段。

Most of the data transfer between computers are realized through file transfer protocol-FTP. Generally FTP means file transfer service. Using two TCP connections,FTP can realize file transfer operation. FTP can manage four different types of file and transfer file with multiform modes. A typical FTP dialog would pass through four steps.