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From Sathish G <sathish...@rediffmail.com>
Subject Re: How to set Data port on Commons FTP
Date Wed, 23 Dec 2009 05:46:17 GMT

Hi Steve,

You are correct, there will be more than one instance running. So i should
be allowing the FTP program to pick any port currently available.

Thanks for reply.



Steve Cole-6 wrote:
> 
> Will there ever be more than one instance of that client running on that
> computer? If so, when the second instance tries to use those ports, it
> will
> throw an exception, won't it?
> 
> ----- Original Message ----- 
> From: "Sathish Gopal" <Sathish.Gopal@ust-global.com>
> To: <user@commons.apache.org>
> Sent: Friday, December 18, 2009 1:05 AM
> Subject: Reg: How to set Data port on Commons FTP
> 
> 
> Hi all,
> 
> 
> 
> I'm pretty new to Commons API. I'm trying to use FTP API which is part
> of Commons net and don't know much about FTP protocol either.
> 
> 
> 
> My requirement is to create new file via FTP.
> 
> 
> 
> I followed this link (http://slacksite.com/other/ftp.html) to understand
> passive, active modes in FTP
> 
> 
> 
> My real issue is that there are few firewall setting in the Client
> side(the side from which file will be moved to another machine).
> 
> 
> 
> From the above site I found that the FTP protocol at the client side
> randomly opens two port one the Command port and Data port.
> 
> 
> 
> When I looked at the API,  I found the method
> 
> 
> 
>         public void connect(InetAddress
> <http://java.sun.com/j2se/1.3/docs/api/java/net/InetAddress.html>  host,
> int port, InetAddress
> <http://java.sun.com/j2se/1.3/docs/api/java/net/InetAddress.html>
> localAddr, int localPort) throws SocketException
> <http://java.sun.com/j2se/1.3/docs/api/java/net/SocketException.html> ,
> IOException
> <http://java.sun.com/j2se/1.3/docs/api/java/io/IOException.html>
> 
> But using the above method, I can only set the command port, Is there
> any way I can set the Data Port used by FTP API.
> 
> I don't want the API to randomly select Data port, because this port
> might be blocked at the client.
> 
> 
> 
> 
> 
> 
> Thanks and Regards
> 
> Sathish Gopal
> 
> 
> 
> 
> 
> 
> 
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> 
> 
> 

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