1. Open a terminal using the menu: Application->Accessories->Terminal.
   
2. Enter the following command:
   
   sudo mount http://10.0.0.157/inas/ <mountpoint>
   
   Replace <mountpoint> with a proper mount point.
3. If you do not have the davfs2 package, please install it as follows.
   
   sudo apt-get install davfs2
   
   
4. Enter the username and password as in your iNas settings (touching the -button on your iPhone will show you your iNas settings).
5. You are now successfully connected.