Connecting

$ screen /dev/tty.usbmodem1413

$ ssh root@192.168.7.2

Configuration

On the host (OS X):

$ sudo sysctl -w net.inet.ip.forwarding=1
$ sudo pfctl -F all -f - <<EOF
  nat on en0 from 192.168.7.0/30 to any -> (en0)
  EOF

On the device (Debian):

$ sudo ip route add default via 192.168.7.1
$ sudo tee /etc/resolv.conf <<EOF
  nameserver 8.8.8.8
  nameserver 8.8.4.4
  EOF

See Also