Some things are to learn at RaidenFTPDs support pages at
http://www.raidenftpd.com/en/raiden-...-setup-ip.html f eks, or start at
http://www.raidenftpd.com/en/raiden-ftpd-doc/index.html. I guess other ftp-server-programmers have similar support pages, but I used RaidenFTPD for a while and then had to learn something from them. Obviously there are different problems with different ftp-clients, and also different problems with different ftp-servers. It is not as straightforward as one would wish...
.unicorn