试了一下FTP, 连接没问题，但是不能List目录, 用的是FlashFXP 3.2
WinSock 2.0 -- OpenSSL 0.9.7d 17 Mar 2004
[R] Connecting to 61.172.245.66 -> IP=61.172.245.66 PORT=21
[R] Connected to 61.172.245.66
[R] 220 Serv-U FTP Server v6.1 for WinSock ready...
[R] USER codepub
[R] 331 User name okay, need password.
[R] PASS (hidden)
[R] 230 User logged in, proceed.
[R] SYST
[R] 215 UNIX Type: L8
[R] FEAT
[R] 211-Extension supported
[R] CLNT
[R] MDTM
[R] MDTM YYYYMMDDHHMMSS[+-TZ];filename
[R] SIZE
[R] SITE PSWD;EXEC;SET;INDEX;ZONE;CHMOD;MSG
[R] REST STREAM
[R] XCRC filename;start;end
[R] MODE Z
[R] MLST Type*;Size*;Create;Modify*;Win32.ea*;
[R] 211 End
[R] CLNT FlashFXP 3.0.1015
[R] 200 Noted.
[R] PWD
[R] 257 "/" is current directory.
[R] TYPE A
[R] 200 Type set to A.
[R] PASV
[R] 227 Entering Passive Mode (61,172,245,66,4,169)
[R] Opening data connection IP: 61.172.245.66 PORT: 1193
[R] Data Socket Error: Connection timed out
[R] List Error
[R] PASV
