Time Machine automatic back up to NAS Drive from different location

How can i update the backup of my Time Machine from a far using my NAS Drive? I have googled it and it says to create a VPN but is there an idoits guide at all so i can connect to my live duo at home?

Many Thanks


Hi remote access to setup a backup is not  supported, only remote access to your files. Maybe some of the community users can share some advice on how setup VPN access.