FTP Through a proxy/firewall

are there any good java classes for the ftp-protocol ? if not, how do i get through a proxy with my custom ftp-client ? should i connect to the proxy first as with http and then redirect the request....

regards marss
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(Sect. 15) How do I get a URLConnection to work through proxy firewalls? I.e. How do you get your application to do its web accesses through a proxy?
also look:
Netscape FAQ
3.1: How do I use URLConnection through a proxy?
You may be getting the error:  #Security Exception: socket.connect:my.host.net->my.host.net. when using a proxy through a firewall, especially when specifying the CODEBASE property of the APPLET tag.  Try using the IP address as the CODEBASE specification instead of your domain name. 4.0 will handle proxies transparently.  [4.0]

Java Tip 42: Write Java apps that work with proxy-based firewalls

Firewall Access in Java Applets



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