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1.
Connected. Waiting for response.
220 Serv-U FTP Server v4.0 for WinSock ready...
USER anonymous
530 Sorry, no ANONYMOUS access allowed.
QUIT
这个就是不许匿名登录啦
2.
Connected. Waiting for response.
220 Serv-U FTP Server v4.0 for WinSock ready...
USER test
331 User name okay, need password.
PASS xxxxxx
530 Not logged in.
QUIT
一般是密码输入错误时出现的资讯,但对于Serv-U来说,如果没有这个帐号(test)存在,也会?生同样的出错资讯。
3.
Connecting to xxx.xxx.xxx.xxx, Port 21 (#1)
ERROR: Connection timed out
这个表明对方未开机,也可能是对方不在你能访问的范围内
4.
Connecting to xxx.xxx.xxx.xxx Port 21 (#1)
ERROR: Connection refused
这个一般表明对方已开机,但未开?FTP服务(没有开Serv-U)
也可能?对方不提供在这个埠上的服务
5.
Connecting to xxx.xxx.xxx.xxx, Port 21 (#1)
Connected. Waiting for response.
Disconnected from server.
Connection attempt failed. Waiting for retry...
出现这个资讯实在是很倒楣,你极有可能被对方Ban了。
过半小时后再试吧
6.
Connecting to xxx.xxx.xxx.xxx, Port 21 (#1)
Connected. Waiting for response.
USER XXX
331 User name okay, need password
PASS xxxxxx
530 Not logged in, unauthorized IP address.
QUIT
这个有点麻烦,你的IP不在站长允许访问的IP范围内
7.
Connected. Waiting for response.
220 Serv-U FTP Server v4.0 for WinSock ready...
USER user
421 Too many users - please try again later.
哈哈,这个很常见吧,用户太多,稍后再试吧
8.
Connected. Waiting for response.
220 Serv-U FTP Server v4.0 for WinSock ready...
USER test
530 Not logged in, only one session from same IP allowed at a time.
QUIT
每个IP只能开一个下载,就不要用多线程啦,小心Ban了你。
9
230 User logged in, proceed.
状态:> 登录成功。
命令:> PWD
257 "/" is current directory.
状态:> Home directory: /
状态:> 该站点支援 features。
状态:> 该站点支援 SIZE。
状态:> 该站点可以续传中断的下载。
命令:> REST 0
350 Restarting at 0. Send STORE or RETRIEVE.
命令:> PORT 10,7,72,20,5,71
530 Only client IP address allowed for PORT command.
错误:> 未登录。
错误:> 建立资料 socket 失败。
状态:> 连接已关闭。
有些ftp要求使用post,一般默认pasv,这是应该使用pasv,错用post所致不能登陆
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