Connection through FTP

Question

Hello guys, I have a problem, (and have googled a lot,) can some one help me?

I am behind a proxy(squid proxy) that needs authentication, and want to make an FTP connection to an FTP server outside my network, how to do it using edtFtp;

for example assume

proxy server ip = 123.456.789
proxy username = myusername
proxy password = mypassword

ftp server ip = 987.654.321
ftp uer name = ftpusername
ftp password = ftppassword

Many Thanks in advance

Answer 1

One approach that might work is described here:

http://www.enterprisedt.com/products/ed ... rvers.html

If SOCKS is enabled, you can do this:

http://www.enterprisedt.com/products/ed ... proxy.html

Answer 2

Ya, have seen that, but there is no facility to provide the proxy user name and password, my proxy needs authentication and yes, SOCKS is not enabled.

Answer 3

Can you get Filezilla working? It gives you a number of options to do with using a proxy. If that works, post the Filezilla log and we should be able to tell you how to do it. Generally involves using the ACCT command.

Answer 4

Status: Using proxy proxyIP
Status: Connecting to proxyIP:21...
Status: Connection established, waiting for welcome message...
Response: 220--------------= TPN/BTINS FTP proxy service =------------
Response: 220---- --
Response: 220---- --
Response: 220---- --
Response: 220---- --
Response: 220---- AUTHORIZED USERS ONLY! --
Response: 220---- ALL TRANSFERS PERFORMED WITH THIS SERVICE ARE LOGGED --
Response: 220---- --
Response: 220---- --
Response: 220---- At the User prompt, enter your FTP site username and the site --
Response: 220---- you are connecting to, followed by your domain login ID. --
Response: 220---- --
Response: 220---- EXAMPLE: anonymous@microsoft.com AMSmithJ --
Response: 220---- --
Response: 220---- At the Password prompt, enter your FTP site password. --
Response: 220---- --
Response: 220---- At the Enter Password prompt, enter your domain password. --
Response: 220---- --
Response: 220 -----------------------------------------------------------------------
Command: USER remoteusername@remoteHost proxyUserName
Response: 331 Enter password.
Command: PASS ********
Response: 332 Enter proxy password.
Command: ACCT *********
Response: 230-Your bandwidth usage is restricted
Response: 230-User username has group access to: apache
Response: 230-This server supports FXP transfers
Response: 230 OK. Current restricted directory is /
Status: Connected
Status: Retrieving directory listing...
Command: PWD
Response: 257 "/" is your current location
Command: TYPE I
Response: 200 Command okay.
Command: PASV
Response: 227 Entering Passive Mode (00,11,255,11,251,170)
Command: LIST -a
Response: 150 File status okay; about to open data connection.
Response: 226 Transfer complete, closing data connection.
Status: Directory listing successful


I have set the settings in Filezilla for FTP proxy with custom settings as
USER %u@%h %s
PASS %p
ACCT %w

where %h is remotehost, %u is remoteUserName, %s is proxyusername, %p is remoteHostPassword, %w is proxyPassword.

And here is the code I'm using to ftp to the remoteHost:
FTPClient ftpClient = new FTPClient("remoteHostIP", 21);
ftpClient.setConnectMode(FTPConnectMode.PASV);
FTPClient.initSOCKS("1080", "proxyserverIP");
FTPClient.initSOCKSAuthentication("proxyUserName" , "proxyPassword");
ftpClient.login("remoteUserName", "remotePassword");
this code is giving me : java.net.SocketException: Reply from SOCKS server has bad version
at java.net.SocksSocketImpl.connectV4(SocksSocketImpl.java:300)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:371)
at java.net.Socket.connect(Socket.java:478)
at java.net.Socket.connect(Socket.java:428)
at java.net.Socket.<init>(Socket.java:335)
at java.net.Socket.<init>(Socket.java:150)
at com.enterprisedt.net.ftp.FTPControlSocket.<init>(FTPControlSocket.java:139)
at com.enterprisedt.net.ftp.FTPClient.<init>(FTPClient.java:150)

Can you help me resolve this? Thanks In Advance.

Answer 5

The key is the settings you've worked out:

USER %u@%h %s
PASS %p
ACCT %w

So you need to supply these settings. With FTPClient you can do this via

login(String user, String password, String accountInfo)

e.g.

login("user@host proxyuser", "pwd", "proxypwd");

Answer 6

It worked great!! Thank you.

Answer 7

Hi guys,

I have the same problem but Filezilla uses the following settings:

USER %s
PASS %w
USER %u@%h
PASS %p
ACCT %a

How can I resolve this using FTPClient?

Kind regards

Iggy

Answer 8

That would be similar, but you need 2 commands, something like:

login("user", "pwd");
login("user@host", "proxypassword", "whateverthisis");

You'll have to experiment a bit and look at the log file.