Samba is an important tool for...
It is possible to...
File protocol gateways...
"Setting up a Linux File Server" http://vetrec.mit.edu/people/narf/linux.html
Two free implementations of Appletalk for Unix are Netatalk, http://www.umich.edu/~rsug/netatalk/, and CAP, http://www.cs.mu.oz.au/appletalk/atalk.html. What Samba offers MS Windows users, these packages offer to Macs. For more info on these packages, Samba, and Linux (and other UNIX-based systems) see http://www.eats.com/linux_mac_win.html 3.5) Sniffing your nework