Session with commandline ftp (succesful upload of test3 to /Upload/):
%ftp ftp.blankedout.nl
Connected to ftp.blankedout.nl.
220 asphi2 Microsoft FTP Service (Version 5.0).
Name (ftp.blankedout.nl:user): anonymous
331 Anonymous access allowed, send identity (e-mail name) as password.
Password:
230-BlankedOut Software FTP Site
230 Anonymous user logged in.
Remote system type is Windows_NT.
ftp> cd Upload
250 CWD command successful.
ftp> put test3
local: test3 remote: test3
227 Entering Passive Mode (blankedout).
125 Data connection already open; Transfer starting.
100% |**************************************************|     6       --:-- ETA
226 Transfer complete.
6 bytes sent in 0.20 seconds (0.03 KB/s)
ftp> bye
221

Session with FileZilla 2.2.8a (failed CWD to /Upload/):
Status:	Connecting to ftp.blankedout.nl ...
Status:	Connected with proxy. Waiting for welcome message...
Response:	220-Proxy first requires authentication
Response:	220 proxy.alsoblank.nl FTP proxy (Version V2.1) ready.
Status:	Trying to access ftp.blankedout.nl through ftp proxy...
Command:	USER user3
Response:	331 Enter authentication password for user3
Command:	PASS ******
Response:	230 User authenticated to proxy
Command:	USER anonymous@ftp.blankedout.nl
Response:	331-(----GATEWAY CONNECTED TO ftp.blankedout.nl----)
Response:	331-(220 asphi2 Microsoft FTP Service (Version 5.0).)
Response:	331 Anonymous access allowed, send identity (e-mail name) as password.
Command:	PASS *****
Response:	230-blankedout Software FTP Site
Response:	230 Anonymous user logged in.
Command:	FEAT
Response:	500 command not understood
Status:	Connected
Status:	Retrieving directory listing...
Command:	PWD
Response:	257 "/" is current directory.
Status:	Directory listing successful
Status:	Retrieving directory listing...
Command:	CWD Upload
Response:	250 CWD command successful.
Command:	PWD
Response:	257 "/Upload" is current directory.
Command:	PORT blankedout
Response:	200 PORT command successful.
Command:	TYPE A
Response:	200 Type set to A.
Command:	LIST
Response:	150 Opening ASCII mode data connection for /bin/ls.
Response:	550 .: Access is denied. 
Error:	Could not retrieve directory listing

Session with FTP Voyager 11.1.0.0 (succesful upload of test4.txt to /Upload/)
STATUS:>	Connecting to "ftp.blankedout.nl" through proxy "proxy" on port 21.
	220-Proxy first requires authentication
	220 proxy.alsoblank.nl FTP proxy (Version V2.1) ready.
COMMAND:>	USER user
	331 Enter authentication password for user3
COMMAND:>	PASS ******
	230 User authenticated to proxy
STATUS:>	Login successful
COMMAND:>	FEAT
	500 command not understood
STATUS:>	Connected.  Logging into the server
COMMAND:>	USER anonymous@ftp.blankedout.nl
	331-(----GATEWAY CONNECTED TO ftp.blankedout.nl----)
	331-(220 asphi2 Microsoft FTP Service (Version 5.0).)
	331 Anonymous access allowed, send identity (e-mail name) as password.
COMMAND:>	PASS ********************
	230-blankedout Software FTP Site
	230 Anonymous user logged in.
STATUS:>	Login successful
COMMAND:>	REST 100
	350 Restarting at 100.
COMMAND:>	REST 0
	350 Restarting at 0.
STATUS:>	Server supports resume
COMMAND:>	PWD
	257 "/" is current directory.
COMMAND:>	CWD /Upload/
	250 CWD command successful.
COMMAND:>	TYPE A
	200 Type set to A.
COMMAND:>	PORT 10,78,4,69,18,73
	200 PORT command successful.
COMMAND:>	LIST
	150 Opening ASCII mode data connection for /bin/ls.
	550 .: Access is denied. 
STATUS:>	Connecting to "ftp.blankedout.nl" through proxy "proxy" on port 21.
	220-Proxy first requires authentication
	220 proxy.alsoblank.nl FTP proxy (Version V2.1) ready.
COMMAND:>	USER user3
	331 Enter authentication password for user3
COMMAND:>	PASS ******
	230 User authenticated to proxy
STATUS:>	Login successful
STATUS:>	Connected.  Logging into the server
COMMAND:>	USER anonymous@ftp.blankedout.nl
	331-(----GATEWAY CONNECTED TO ftp.blankedout.nl----)
	331-(220 asphi2 Microsoft FTP Service (Version 5.0).)
	331 Anonymous access allowed, send identity (e-mail name) as password.
COMMAND:>	PASS ********************
	230-blankedout Software FTP Site
	230 Anonymous user logged in.
STATUS:>	Login successful
STATUS:>	Server supports resume
COMMAND:>	PWD
	257 "/" is current directory.
COMMAND:>	CWD /Upload
	250 CWD command successful.
COMMAND:>	TYPE A
	200 Type set to A.
COMMAND:>	PORT 10,78,4,69,18,75
	200 PORT command successful.
COMMAND:>	LIST /Upload/test4.txt
	150 Opening ASCII mode data connection for /bin/ls.
	550 /Upload/test4.txt: The system cannot find the file specified. 
STATUS:>	Sending: C:\temp\test4.txt -> /Upload/test4.txt
COMMAND:>	TYPE I
	200 Type set to I.
COMMAND:>	PORT 10,78,4,69,18,76
	200 PORT command successful.
COMMAND:>	STOR test4.txt
	150 Opening BINARY mode data connection for test4.txt.
	226 Transfer complete.
STATUS:>	Sent 11 bytes.
STATUS:>	Transfer time: 00:00:00.000; 11,00 bytes/sec
COMMAND:>	QUIT
	221