For ftp file transfer to my N900 I am using a self compiled vsftpd.

*Edit: nobody need to port Funny how people react when sombody is talking ******** sorry for mixing up release and gui.
As a client gui gftp is nice.*

But in the repository there is proftpd as ftp server. And here how to configure the server.

If somebody is interested in vsftpd I can upload my binary.