Thanks a lot for the swift answers.
looks like FTP is an issue. well, I did not manage to get samba working as supposed. particularly not from linux to linux. sorry, I was never really educated in computer sciences....
Meanwhile I achieved to get the desired FTP access from my Linux home box to the Z:
1) Install pureFTP (
http://www.pureftpd.org/) available from killefiz (
http://www.killefiz.de/zaurus/search.php?q=pureftp&x=0&y=0)
Now you need to start pure-ftpd as root. And it fails due to blocked (used) port or so. did not figure out completely.
2) Comment (!) the ftp lines in the /home/etc/inetd.conf and restart the inetd.
Works for me. User is zaurus and passphrase was zaurus, too.
Probable irritation for connection via USB or the sync (fails anyway :-(( )
Have FUN!