FTP服务器不响应USER requst

时间:2017-01-02 03:00:58

标签: python sockets networking ftp server

我正在尝试在python 2.7中创建基于终端的ftp客户端。 我设置了一个服务器(FileZilla Server版本0.9.41 beta),并尝试执行与该服务器通信的脚本。

我的Client.py:

import socket
import time

host = raw_input("ip ->")
port = 21

s = socket.socket()

s.connect((host, port))

print s.recv(8192)
print s.recv(8192)

s.send("USER user")
print "sent"
print s.recv(512)

s.close()

Client.py输出:

ip ->localhost
220-FileZilla Server version 0.9.41 beta

220-written by Tim Kosse (Tim.Kosse@gmx.de)
220 Please visit http://sourceforge.net/projects/file

sent
421 Login time exceeded. Closing control connection.

服务器输出:

(000010)02.01.2017 03:45:22 - (not logged in) (127.0.0.1)> Connected, sending welcome message...
(000010)02.01.2017 03:45:22 - (not logged in) (127.0.0.1)> 220-FileZilla Server version 0.9.41 beta
(000010)02.01.2017 03:45:22 - (not logged in) (127.0.0.1)> 220-written by Tim Kosse (Tim.Kosse@gmx.de)
(000010)02.01.2017 03:45:22 - (not logged in) (127.0.0.1)> 220 Please visit http://sourceforge.net/projects/filezilla/
(000010)02.01.2017 03:46:22 - (not logged in) (127.0.0.1)> 421 Login time exceeded. Closing control connection.
(000010)02.01.2017 03:46:22 - (not logged in) (127.0.0.1)> disconnected.

为什么服务器会忽略我的“USER用户”请求? (我想在没有其他图书馆/模块的帮助下编写代码而不是“socket”,(我知道ftplib的存在,但我不想使用它))))

1 个答案:

答案 0 :(得分:1)

尝试在\r\n之后添加USER user