Set up new Synology mass storage device

Description

I just bought a new Synology mast storage drive. I'd like to get it set up properly. A section for my business and a section for my personal use. I haven't been able to access it from outside of my home network. Even though I've opened up some ports. And also like to make sure that there is no security warning when it is accessed from external use. Just want to make sure everything is current up to date and organize properly.