While we have tried to explain all the basic concepts of FTP as they relate to Rumpus, you're going to find that we've only scratched the surface. There is a great deal of information on the Web about the FTP protocol, clients, and servers, and the following URLs provide a good background on these topics:

Anonymous FTP Frequently Asked Questions (FAQ) List

http://coba.shsu.edu/help/ftp/faq.html

FTP Specification, RFC 959

ftp://nic.merit.edu/documents/rfc/rfc0959.txt

Of course, keep watching the Rumpus home page on the Maxum Web site for the latest developments on Rumpus and providing FTP services via the Mac OS:

http://www.maxum.com/Rumpus/