Topic "Cannot connect using FTPS with TLS Explicit Encryption"

Author Message
xvi200

Guest


Hi there,

First off, big thank you for implementing FTPS. I am forced to use it, and I didn't feel like dropping my favourite file transfer program Wink

However, I am not able to connect to the server, and I don't know why. The admin says that FileZilla has FTPS implemented wrong and recommends using coreFTP instead. Could WinSCP have the same problem?

I have tested the same settings on WinSCP and coreFTP, and the former fails (AUTH not understood), while the second connects successfully (although slooooooooowly).

Any help is appreciated. I attach the debug output, in case it helps (some private data removed).

THANKS!

Code:
. 2009-03-23 11:22:51.138 --------------------------------------------------------------------------
. 2009-03-23 11:22:51.138 WinSCP Version 4.2.1 (Build 428) (OS 5.1.2600 Service Pack 2)
. 2009-03-23 11:22:51.138 Login time: lunes, 23 de marzo de 2009 11:22:51
. 2009-03-23 11:22:51.138 --------------------------------------------------------------------------
. 2009-03-23 11:22:51.138 Session name: xxxxxx
. 2009-03-23 11:22:51.138 Host name: x.x.x.x(Port: 990)
. 2009-03-23 11:22:51.138 User name: xxxxxx (Password: Yes, Key file: No)
. 2009-03-23 11:22:51.138 Tunnel: No
. 2009-03-23 11:22:51.138 Transfer Protocol: FTP
. 2009-03-23 11:22:51.138 Ping type: -, Ping interval: 30 sec; Timeout: 60 sec
. 2009-03-23 11:22:51.138 Proxy: none
. 2009-03-23 11:22:51.138 FTP: FTPS: Explicit TLS; Passive: Yes
. 2009-03-23 11:22:51.138 Local directory: default, Remote directory: home, Update: No, Cache: Yes
. 2009-03-23 11:22:51.138 Cache directory changes: Yes, Permanent: Yes
. 2009-03-23 11:22:51.138 DST mode: 1
. 2009-03-23 11:22:51.138 --------------------------------------------------------------------------
. 2009-03-23 11:22:51.168 Connecting to x.x.x.x:990 ...
. 2009-03-23 11:22:51.168 FtpControlSocket.cpp(5482): m_pSslLayer changed state from 0 to 1   caller=0x01ef34f4
. 2009-03-23 11:22:51.168 FtpControlSocket.cpp(5482): m_pSslLayer changed state from 1 to 2   caller=0x01ef34f4
. 2009-03-23 11:22:51.208 FtpControlSocket.cpp(5482): m_pSslLayer changed state from 2 to 4   caller=0x01ef34f4
. 2009-03-23 11:22:51.208 FtpControlSocket.cpp(1072): OnConnect(0)  OpMode=1 OpState=-8   caller=0x01ef34f4
. 2009-03-23 11:22:51.218 Connected with x.x.x.x:990, negotiating SSL connection...
. 2009-03-23 11:23:06.279 FtpControlSocket.cpp(894): OnReceive(0)  OpMode=1 OpState=-8   caller=0x01ef34f4
< 2009-03-23 11:23:06.279 220 ProFTPD 1.3.1 Server (HOYO) [10.95.93.16]
> 2009-03-23 11:23:06.279 AUTH TLS
. 2009-03-23 11:23:06.320 FtpControlSocket.cpp(894): OnReceive(0)  OpMode=1 OpState=-9   caller=0x01ef34f4
< 2009-03-23 11:23:06.320 500 AUTH not understood
. 2009-03-23 11:23:06.320 FtpControlSocket.cpp(1229): DoClose(0)  OpMode=1 OpState=-9   caller=0x01ef34f4
. 2009-03-23 11:23:06.320 FtpControlSocket.cpp(4250): ResetOperation(4100)  OpMode=1 OpState=-9   caller=0x01ef34f4
. 2009-03-23 11:23:06.320 Connection failed.
. 2009-03-23 11:23:06.320 Got reply 1004 to the command 1
* 2009-03-23 11:23:06.330 (ESshFatal) Connection failed.
* 2009-03-23 11:23:06.330 Connection failed.
* 2009-03-23 11:23:06.330 AUTH not understood
. 2009-03-23 11:23:57.383 FtpControlSocket.cpp(184): ~CFtpControlSocket()   caller=0x01ef34f4
. 2009-03-23 11:23:57.383 FtpControlSocket.cpp(1229): DoClose(0)  OpMode=0 OpState=-1   caller=0x01ef34f4
. 2009-03-23 11:23:57.383 FtpControlSocket.cpp(4250): ResetOperation(4100)  OpMode=0 OpState=-1   caller=0x01ef34f4
. 2009-03-23 11:23:57.383 ControlSocket.cpp(89): ~CControlSocket()   caller=0x01ef34f4
xvi2000
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Joined: 2009-03-23
Posts: 1
I apologize for my previous anonymous post. I registered to the forum and this is my username now Embarassed
martin
[View user's profile]
Site Admin
Joined: 2002-12-10
Posts: 24991
Location: Prague, Czechia
WinSCP uses FTP implementation from Filezilla. So it may possibly suffer the same issues.

What I find strange is that you connect to 990 port (port for implicit FTPS), yet you have explicit FTPS configured.
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Martin Prikryl
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