How Amahi runs best with eth0, since it's the default option. Running with eth1 may not work for all apps, etc. However, here is how to run an HDA with eth1
* Change /usr/bin/hdactl (near the top, search for eth0)
* Change /etc/openvpn/openvpn-startup (line 5)
if If you install an app like ushare:
* Change /var/hda/apps/ushare/ushare.conf (line 13)
if If you install darkstat:
* Change amahi-darkstat.initscript
Note that any change to /usr/bin/hdactl will be removed each time the hdactl RPM package is updated (when Amahi is updated), which means you'll need to re-do the above edit each time Amahi is updated.