Here is a small manual for setting up a connection between an Ubuntu server and a Synology Diskstation. Prerequesites are that you created a shared folder and configured your Diskstation successfully. After that you can start sharing that content to your Ubuntu server.

1. Open the Diskstation Web Application
2. Go to “Control Panel – Shared Folder”
3. Open “NFS-Access”
4. Create a new one

   Client: *
   Privilegde: Read/Write
   Root squash: default
   Asynchronous: Yes

5. Write down the mount path from the bottom of this pop-up, in my case it was “/volume1/Backup”
6. Open a shell on your Ubuntu server

   sudo apt-get install nfs-common
   sudo mkdir /mnt/diskstation
   sudo mkdir /mnt/backup
   sudo mount -t nfs 192.168.0.X:/volume1/Backup /mnt/backup

7. Congratulations! You just added a Synology Diskstation to your Ubuntu server.

What now? Perhaps you want to sync your data (like I did):

rsync -rvz /mnt/diskstation /mnt/backup
-r ... include subdirectories
-v ... verbose mode, display output
-z ... compress content for lesser network traffic