New to socket programming

Hi,

I am writing a simple Java Swing application that aims to connect to a Unix server from my windows machine.
When I connect using PUTTY or telnet, I am prompted for a login and then the password.
How can I achieve this from within my Java Swing program, so that I can see the directory listing, download files and upload files from the server.

From the client application I am creating the new Socket(hostname,port) with port = 23. But then how should I pass the login and password so that I can enter the unix server.

I would appreciate any help in this regard.

Thanks in advance!

Unless the point is to learn about socket programming, I'd go with a library like Jakarta Commons Net, which implements the Telnet protocol, amongst others.
Emulating Putty is much harder, because it implements SSH, where all kinds of security and encryption features need to be implemented.

Originally posted by Ulf Dittmer:
Unless the point is to learn about socket programming, I'd go with a library like Jakarta Commons Net, which implements the Telnet protocol, amongst others.
Emulating Putty is much harder, because it implements SSH, where all kinds of security and encryption features need to be implemented.

Thanx buddy. Now I can take from here.