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Old 10-07-2007, 05:52 AM   #1
dhananjaya
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Registered: Oct 2007
Posts: 1

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GUI client ftp application not connected with server


Hi Friends.

I have configure ftp server(vsftpd)in my server(RedHat Enterprise 4 AS) and try to connect from GUI ftp client application. But it gives following error message. I used FileZilla to capture following output
------------------------------------------------------------
Status: Connecting to 10.10.41.223:21...
Status: Connection established, waiting for welcome message...
Response: 220 (vsFTPd 2.0.1)
Command: USER dhaj
Response: 331 Please specify the password.
Command: PASS ******
Response: 230 Login successful.
Status: Connected
Status: Retrieving directory listing...
Command: PWD
Response: 257 "/home/dhaj"
Command: TYPE I
Response: 200 Switching to Binary mode.
Command: PASV
Response: 227 Entering Passive Mode (10,10,41,223,223,42)
Command: LIST
Error: Connection timed out
Error: Failed to retrieve directory listing

-----------------------------------------------------------------

when i connect to server through normal way ( using command prompt to ftp) it works without problem.
Please help me regarding this..

Thanks & Regards
Dhananjaya Amarakoon
 
Old 10-28-2007, 05:35 PM   #2
rednuht
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Registered: Aug 2005
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FTP communications runs in two ways Active and Passive.
Active is the old way with a single two way connection and is way the ftp command works.
Passive works slightly differently. When the LIST command is sent requesting a list of files in the current directory instead of replying with the results in the same connection a new connection is made from the server back to the client.
Most firewalls are FTP passive aware but common mistakes it to restrict ALL incoming NEW connections which kills the FTP ones.
You can run wireshark/ethereal to see the packet flow.
 
  


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