WingFTP crashes when a client connects

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fred9176
Posts: 23
Joined: Mon Jul 02, 2012 9:29 am

WingFTP crashes when a client connects

Post by fred9176 »

Hi,

We have a client who connects to our ftp server to retrive files. He creates 5 simultaneous connections to the server (I guess he's using a batch).

Everytime he does so, the ftp server crashes.

Here is an extract of the log file :

Code: Select all

[02] Mon, 22 Jun 2015 09:42:15 (0002690) Connected from <remote_ip> (local address <our_ip>, port 21)
[04] Mon, 22 Jun 2015 09:42:15 (0002690) 220 Welcome to <company ftp>
[02] Mon, 22 Jun 2015 09:42:15 (0002691) Connected from <remote_ip> (local address <our_ip>, port 21)
[04] Mon, 22 Jun 2015 09:42:15 (0002691) 220 Welcome to <company ftp>
[02] Mon, 22 Jun 2015 09:42:15 (0002692) Connected from <remote_ip> (local address <our_ip>, port 21)
[04] Mon, 22 Jun 2015 09:42:15 (0002692) 220 Welcome to <company ftp>
[02] Mon, 22 Jun 2015 09:42:15 (0002693) Connected from <remote_ip> (local address <our_ip>, port 21)
[04] Mon, 22 Jun 2015 09:42:15 (0002693) 220 Welcome to <company ftp>
[02] Mon, 22 Jun 2015 09:42:15 (0002694) Connected from <remote_ip> (local address <our_ip>, port 21)
[04] Mon, 22 Jun 2015 09:42:15 (0002694) 220 Welcome to <company ftp>
[03] Mon, 22 Jun 2015 09:42:15 (0002690) USER <user_name>
[04] Mon, 22 Jun 2015 09:42:15 (0002690) 331 Password required for <user_name>
[03] Mon, 22 Jun 2015 09:42:15 (0002691) USER <user_name>
[04] Mon, 22 Jun 2015 09:42:15 (0002691) 331 Password required for <user_name>
[03] Mon, 22 Jun 2015 09:42:15 (0002692) USER <user_name>
[04] Mon, 22 Jun 2015 09:42:15 (0002692) 331 Password required for <user_name>
[03] Mon, 22 Jun 2015 09:42:15 (0002693) USER <user_name>
[04] Mon, 22 Jun 2015 09:42:15 (0002693) 331 Password required for <user_name>
[03] Mon, 22 Jun 2015 09:42:15 (0002694) USER <user_name>
[04] Mon, 22 Jun 2015 09:42:15 (0002694) 331 Password required for <user_name>
[03] Mon, 22 Jun 2015 09:42:15 (0002690) PASS **********
[03] Mon, 22 Jun 2015 09:42:15 (0002691) PASS **********
[03] Mon, 22 Jun 2015 09:42:15 (0002692) PASS **********
[03] Mon, 22 Jun 2015 09:42:15 (0002693) PASS **********
[03] Mon, 22 Jun 2015 09:42:15 (0002694) PASS **********
[04] Mon, 22 Jun 2015 09:42:15 (0002690) 230 User <user_name> logged in.
[04] Mon, 22 Jun 2015 09:42:15 (0002691) 230 User <user_name> logged in.
[04] Mon, 22 Jun 2015 09:42:15 (0002692) 230 User <user_name> logged in.
[04] Mon, 22 Jun 2015 09:42:15 (0002693) 230 User <user_name> logged in.
[04] Mon, 22 Jun 2015 09:42:15 (0002694) 230 User <user_name> logged in.
[03] Mon, 22 Jun 2015 09:42:15 (0002690) PWD
[04] Mon, 22 Jun 2015 09:42:15 (0002690) 257 "/" is current directory.
[03] Mon, 22 Jun 2015 09:42:15 (0002691) PWD
[04] Mon, 22 Jun 2015 09:42:15 (0002691) 257 "/" is current directory.
[03] Mon, 22 Jun 2015 09:42:15 (0002692) PWD
[04] Mon, 22 Jun 2015 09:42:15 (0002692) 257 "/" is current directory.
[03] Mon, 22 Jun 2015 09:42:15 (0002693) PWD
[04] Mon, 22 Jun 2015 09:42:15 (0002693) 257 "/" is current directory.
[03] Mon, 22 Jun 2015 09:42:15 (0002694) PWD
[04] Mon, 22 Jun 2015 09:42:15 (0002694) 257 "/" is current directory.
[03] Mon, 22 Jun 2015 09:42:15 (0002690) CWD P59
[03] Mon, 22 Jun 2015 09:42:15 (0002691) CWD P1
[04] Mon, 22 Jun 2015 09:42:15 (0002690) 250 CWD command successful. "/P59" is current directory.
[03] Mon, 22 Jun 2015 09:42:15 (0002692) CWD P40
[04] Mon, 22 Jun 2015 09:42:15 (0002692) 250 CWD command successful. "/P40" is current directory.
[03] Mon, 22 Jun 2015 09:42:15 (0002693) CWD P5
[04] Mon, 22 Jun 2015 09:42:15 (0002691) 250 CWD command successful. "/P1" is current directory.
[03] Mon, 22 Jun 2015 09:42:15 (0002694) CWD P141
[04] Mon, 22 Jun 2015 09:42:15 (0002694) 250 CWD command successful. "/P141" is current directory.
[04] Mon, 22 Jun 2015 09:42:15 (0002693) 250 CWD command successful. "/P5" is current directory.
[03] Mon, 22 Jun 2015 09:42:15 (0002690) EPSV
[04] Mon, 22 Jun 2015 09:42:15 (0002690) 229 Entering Extended Passive Mode (|||17120|)
[03] Mon, 22 Jun 2015 09:42:15 (0002692) EPSV
[04] Mon, 22 Jun 2015 09:42:15 (0002692) 229 Entering Extended Passive Mode (|||17121|)
[03] Mon, 22 Jun 2015 09:42:15 (0002691) EPSV
[04] Mon, 22 Jun 2015 09:42:15 (0002691) 229 Entering Extended Passive Mode (|||17122|)
[03] Mon, 22 Jun 2015 09:42:15 (0002694) EPSV
[04] Mon, 22 Jun 2015 09:42:15 (0002694) 229 Entering Extended Passive Mode (|||17123|)
[03] Mon, 22 Jun 2015 09:42:15 (0002693) EPSV
[04] Mon, 22 Jun 2015 09:42:15 (0002693) 229 Entering Extended Passive Mode (|||17124|)
[03] Mon, 22 Jun 2015 09:42:15 (0002690) TYPE I
[04] Mon, 22 Jun 2015 09:42:15 (0002690) 200 Type set to I
[03] Mon, 22 Jun 2015 09:42:15 (0002690) SIZE <user_name>_spain.xml
[04] Mon, 22 Jun 2015 09:42:15 (0002690) 213 7525246
[03] Mon, 22 Jun 2015 09:42:15 (0002690) RETR <user_name>_spain.xml
[04] Mon, 22 Jun 2015 09:42:20 (0002690) 426 Data connection closed
[03] Mon, 22 Jun 2015 09:42:20 (0002693) TYPE I
[04] Mon, 22 Jun 2015 09:42:20 (0002693) 200 Type set to I
[03] Mon, 22 Jun 2015 09:42:20 (0002693) SIZE <user_name>_deutschland.xml
[04] Mon, 22 Jun 2015 09:42:20 (0002693) 213 43292319
[03] Mon, 22 Jun 2015 09:42:20 (0002693) RETR <user_name>_deutschland.xml
[04] Mon, 22 Jun 2015 09:42:20 (0002693) 503 Bad sequence of commands.
[03] Mon, 22 Jun 2015 09:42:20 (0002694) TYPE I
[04] Mon, 22 Jun 2015 09:42:20 (0002694) 200 Type set to I
[03] Mon, 22 Jun 2015 09:42:21 (0002694) SIZE <user_name>_netherlands .xml
[04] Mon, 22 Jun 2015 09:42:21 (0002694) 213 15541573
[03] Mon, 22 Jun 2015 09:42:21 (0002694) RETR <user_name>_netherlands .xml
[04] Mon, 22 Jun 2015 09:42:21 (0002694) 503 Bad sequence of commands.
[03] Mon, 22 Jun 2015 09:42:21 (0002691) TYPE I
[04] Mon, 22 Jun 2015 09:42:21 (0002691) 200 Type set to I
[03] Mon, 22 Jun 2015 09:42:21 (0002691) SIZE <user_name>_france.xml
[04] Mon, 22 Jun 2015 09:42:21 (0002691) 213 94244074
[03] Mon, 22 Jun 2015 09:42:21 (0002691) RETR <user_name>_france.xml
[04] Mon, 22 Jun 2015 09:42:21 (0002691) 503 Bad sequence of commands.
[03] Mon, 22 Jun 2015 09:42:21 (0002692) TYPE I
[04] Mon, 22 Jun 2015 09:42:21 (0002692) 200 Type set to I
[03] Mon, 22 Jun 2015 09:42:21 (0002692) SIZE <user_name>_china.xml
[04] Mon, 22 Jun 2015 09:42:21 (0002692) 213 19337799
[03] Mon, 22 Jun 2015 09:42:21 (0002692) RETR <user_name>_china.xml
[04] Mon, 22 Jun 2015 09:42:21 (0002692) 503 Bad sequence of commands.
[03] Mon, 22 Jun 2015 09:42:21 (0002692) EPSV
[04] Mon, 22 Jun 2015 09:42:21 (0002692) 229 Entering Extended Passive Mode (|||17125|)
[03] Mon, 22 Jun 2015 09:42:21 (0002694) CWD /
[03] Mon, 22 Jun 2015 09:42:21 (0002693) CWD /
[04] Mon, 22 Jun 2015 09:42:21 (0002694) 250 CWD command successful. "/" is current directory.
[04] Mon, 22 Jun 2015 09:42:21 (0002693) 250 CWD command successful. "/" is current directory.
[03] Mon, 22 Jun 2015 09:42:21 (0002691) CWD /
[04] Mon, 22 Jun 2015 09:42:21 (0002691) 250 CWD command successful. "/" is current directory.
[03] Mon, 22 Jun 2015 09:42:21 (0002691) CWD P59
[03] Mon, 22 Jun 2015 09:42:21 (0002694) CWD P5
[03] Mon, 22 Jun 2015 09:42:21 (0002693) CWD P141
[04] Mon, 22 Jun 2015 09:42:21 (0002691) 250 CWD command successful. "/P59" is current directory.
[04] Mon, 22 Jun 2015 09:42:21 (0002693) 250 CWD command successful. "/P141" is current directory.
[04] Mon, 22 Jun 2015 09:42:21 (0002694) 250 CWD command successful. "/P5" is current directory.
[03] Mon, 22 Jun 2015 09:42:21 (0002692) SIZE <user_name>_china.xml
[04] Mon, 22 Jun 2015 09:42:21 (0002692) 213 19337799
[03] Mon, 22 Jun 2015 09:42:21 (0002692) RETR <user_name>_china.xml
Do you have any idea of what can cause this problem ? Is it the simultaneous connections or is there a problem with the 503 error : Bad sequence of commands ?

Thank you for your help,

Regards,

Fred
FTP
Site Admin
Posts: 2072
Joined: Tue Sep 29, 2009 6:09 am

Re: WingFTP crashes when a client connects

Post by FTP »

OK, we have sent you an email to discuss this crash issue.
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