Hi!

You can use all kinds of protocols. E.g.:

Appleshare -> www.baltra.org, www.sourceforge.net/projects/netatalk
Samba -> www.samba.org
NFS
FTP
SSH /SCP -> www.openssh.org

I would recommend nfs or appleshare. The latest baltra release stores
all ressource forks OS-X-compatible, so they will be useable if you
attach your shared linux disk to the mac later, or access it via smb
or nfs.

CU Lars.