Thursday, January 27, 2011

winSCP not listing directory problem

I'm trying to use winSCP to FTP my server using FTPs and then synch with a backup folder. I have had this working fine from a PC on my work intranet (i.e. the same domain) however when I try to set it up off site (which is my whole point) the same script fails. The FTP log is as follows..

. 2010-09-09 15:28:30.952 --------------------------------------------------------------------------
. 2010-09-09 15:28:30.952 WinSCP Version 4.2.8 (Build 818) (OS 5.2.3790 Service Pack 2)
. 2010-09-09 15:28:30.952 Login time: 09 September 2010 15:28:30
. 2010-09-09 15:28:30.952 --------------------------------------------------------------------------
. 2010-09-09 15:28:30.952 Session name: user1@myserver.nhs.uk
. 2010-09-09 15:28:30.952 Host name: myserver.nhs.uk (Port: 21)
. 2010-09-09 15:28:30.952 User name: user1 (Password: Yes, Key file: No)
. 2010-09-09 15:28:30.952 Tunnel: No
. 2010-09-09 15:28:30.952 Transfer Protocol: FTP
. 2010-09-09 15:28:30.952 Ping type: C, Ping interval: 30 sec; Timeout: 15 sec
. 2010-09-09 15:28:30.952 Proxy: none
. 2010-09-09 15:28:30.952 FTP: FTPS: Explicit SSL; Passive: No [Force IP: No]
. 2010-09-09 15:28:30.952 Local directory: default, Remote directory: home, Update: No, Cache: Yes
. 2010-09-09 15:28:30.952 Cache directory changes: Yes, Permanent: Yes
. 2010-09-09 15:28:30.952 DST mode: 1
. 2010-09-09 15:28:30.952 --------------------------------------------------------------------------
. 2010-09-09 15:28:30.968 Connecting to myserver.nhs.uk ...
. 2010-09-09 15:28:30.984 Connected with myserver.nhs.uk, negotiating SSL connection...
< 2010-09-09 15:28:30.999 220 Microsoft FTP Service
> 2010-09-09 15:28:30.999 AUTH SSL
< 2010-09-09 15:28:31.031 234 AUTH command ok. Expecting TLS Negotiation.
. 2010-09-09 15:28:31.187 SSL connection established. Waiting for welcome message...
> 2010-09-09 15:28:31.187 USER user1
< 2010-09-09 15:28:31.218 331 Password required for user1.
> 2010-09-09 15:28:31.218 PASS ********
< 2010-09-09 15:28:31.234 230 User logged in.
> 2010-09-09 15:28:31.234 SYST
< 2010-09-09 15:28:31.265 215 Windows_NT
> 2010-09-09 15:28:31.265 FEAT
< 2010-09-09 15:28:31.281 211-Extended features supported:
< 2010-09-09 15:28:31.281  LANG EN*
< 2010-09-09 15:28:31.281  UTF8
< 2010-09-09 15:28:31.281  AUTH TLS;TLS-C;SSL;TLS-P;
< 2010-09-09 15:28:31.281  PBSZ
< 2010-09-09 15:28:31.281  PROT C;P;
< 2010-09-09 15:28:31.281  CCC
< 2010-09-09 15:28:31.296  HOST
< 2010-09-09 15:28:31.296  SIZE
< 2010-09-09 15:28:31.296  MDTM
< 2010-09-09 15:28:31.296  REST STREAM
< 2010-09-09 15:28:31.296 211 END
> 2010-09-09 15:28:31.296 OPTS UTF8 ON
< 2010-09-09 15:28:31.312 200 OPTS UTF8 command successful - UTF8 encoding now ON.
> 2010-09-09 15:28:31.312 PBSZ 0
< 2010-09-09 15:28:31.343 200 PBSZ command successful.
> 2010-09-09 15:28:31.343 PROT P
< 2010-09-09 15:28:31.359 200 PROT command successful.
. 2010-09-09 15:28:31.359 Connected
. 2010-09-09 15:28:31.359 --------------------------------------------------------------------------
. 2010-09-09 15:28:31.359 Using FTP protocol.
. 2010-09-09 15:28:31.359 Doing startup conversation with host.
> 2010-09-09 15:28:31.359 PWD
< 2010-09-09 15:28:31.390 257 "/" is current directory.
. 2010-09-09 15:28:31.390 Getting current directory name.
. 2010-09-09 15:28:31.390 Retrieving directory listing...
> 2010-09-09 15:28:31.390 TYPE A
< 2010-09-09 15:28:31.406 200 Type set to A.
> 2010-09-09 15:28:31.421 PORT 10,222,54,3,6,38
< 2010-09-09 15:28:31.437 200 PORT command successful.
> 2010-09-09 15:28:31.437 LIST -a
< 2010-09-09 15:28:31.468 150 Opening ASCII mode data connection.
. 2010-09-09 15:28:46.968 Timeout detected.
. 2010-09-09 15:28:46.968 Could not retrieve directory listing
* 2010-09-09 15:28:46.968 (ESshFatal) Lost connection.
* 2010-09-09 15:28:46.968 Timeout detected.
* 2010-09-09 15:28:46.968 Could not retrieve directory listing
* 2010-09-09 15:28:46.968 Opening ASCII mode data connection.
* 2010-09-09 15:28:46.968 Error listing directory '/'.
. 2010-09-09 15:28:51.999 Connecting to myserver.nhs.uk ...
. 2010-09-09 15:28:52.015 Connected with myserver.nhs.uk, negotiating SSL connection...
< 2010-09-09 15:28:52.031 220 Microsoft FTP Service
> 2010-09-09 15:28:52.031 AUTH SSL
< 2010-09-09 15:28:52.062 234 AUTH command ok. Expecting TLS Negotiation.
. 2010-09-09 15:28:52.140 SSL connection established. Waiting for welcome message...
> 2010-09-09 15:28:52.140 USER user1
< 2010-09-09 15:28:52.156 331 Password required for user1.
> 2010-09-09 15:28:52.156 PASS ********
< 2010-09-09 15:28:52.187 230 User logged in.
> 2010-09-09 15:28:52.187 SYST
< 2010-09-09 15:28:52.202 215 Windows_NT
> 2010-09-09 15:28:52.202 FEAT
< 2010-09-09 15:28:52.234 211-Extended features supported:
< 2010-09-09 15:28:52.234  LANG EN*
< 2010-09-09 15:28:52.234  UTF8
< 2010-09-09 15:28:52.234  AUTH TLS;TLS-C;SSL;TLS-P;
< 2010-09-09 15:28:52.234  PBSZ
< 2010-09-09 15:28:52.234  PROT C;P;
< 2010-09-09 15:28:52.234  CCC
< 2010-09-09 15:28:52.234  HOST
< 2010-09-09 15:28:52.234  SIZE
< 2010-09-09 15:28:52.234  MDTM
< 2010-09-09 15:28:52.234  REST STREAM
< 2010-09-09 15:28:52.234 211 END
> 2010-09-09 15:28:52.234 OPTS UTF8 ON
< 2010-09-09 15:28:52.265 200 OPTS UTF8 command successful - UTF8 encoding now ON.
> 2010-09-09 15:28:52.265 PBSZ 0
< 2010-09-09 15:28:52.281 200 PBSZ command successful.
> 2010-09-09 15:28:52.281 PROT P
< 2010-09-09 15:28:52.312 200 PROT command successful.
. 2010-09-09 15:28:52.312 Connected
. 2010-09-09 15:28:52.312 Doing startup conversation with host.
. 2010-09-09 15:28:52.312 Getting current directory name.
. 2010-09-09 15:28:52.312 Retrieving directory listing...
> 2010-09-09 15:28:52.312 PWD
< 2010-09-09 15:28:52.343 257 "/" is current directory.
> 2010-09-09 15:28:52.343 TYPE A
< 2010-09-09 15:28:52.359 200 Type set to A.
> 2010-09-09 15:28:52.359 PORT 10,222,54,3,6,40
< 2010-09-09 15:28:52.390 200 PORT command successful.
> 2010-09-09 15:28:52.390 LIST -a
< 2010-09-09 15:28:52.406 150 Opening ASCII mode data connection.

This fails whether I run from GUI or a previously tested and working scripted version. It looks from the log like theres a problem with a timeout on the directory listing, presumably it works locally as less lag

Any ideas if this is a winSCP setting (and if so where) or on the FTPserver side (Windows Web Server 2008 R2) ?

  • I ran into this problem when I forgot to open the extra ports that Passive FTP mode requires.

    Basically, you need to open/allow a range of ports through your firewall in addition port 21 that you have already opened.

    It looks like you are using Microsoft's FTP Server. Microsoft has a support page with instructions here.

    When I did this, I opened port 21 for the control port, and then arbitrarily chose ports 65000-65050 for the Passive FTP Data. Your range will vary based on the number of concurrent users/sessions you need or expect (more concurrent users/sessions require more open ports) and any other ports that are already open for other applications.

    From minamhere

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