The VPN on the synology is for accessing the synology and any networks it is connect to. If you place the Synology outside china and run the VPN on a non-standard port you might be able to connect to it from any VPN client on android that is comparative - assuming China lets you through the great firewall. But you won’t know if it worked until you get to China!
With the VPN Server package, you can easily turn your Synology NAS into a VPN server to allow users to remotely and securely access resources shared within the local area network of your Synology NAS. By integrating common VPN protocols - PPTP, OpenVPN and L2TP/IPSec - VPN Server provides options to establish and manage VPN services tailored to your individual needs.
Too complicated for non technical folks to understand. Could you please give an example in plain language? Not sure what it means “run the VPN on a non-standard port”. How exactly I should do step by step? Currently I use tailscale (https://TailscaleIP:PortNumber , not default 5000 or 5001, I chose my own number, 5 digits) on laptop to remotely access DSM/NAS Drive via public WiFi (within USA). I am not only talking accessing NAS drive or DSM when in China, I am talking about accessing some blocked websites, like Gmail, Youtube, etc mainly Google products. There are other financial related websites (may not be blocked, but still need VPN for privacy). I am heavy internet user on desktop/laptop.
I only care about using VPN on laptop, I don’t care about phone. I need to do some work on the laptop at nights. I can buy airalo data plan for phone (it may still nice to use VPN and hotel WiFi, paid data plan can be used outside hotel. I think I could buy enough airalo data if I cannot get on VPN) , I use Google Voice number for calls, Google Voice is already my primary phone number all the time, since Google Voice came out.
I know what you are asking, what you seem to not be grokking is:
china knows when you are using a VPN from inside their country and may block it
they don’t want you using certain things outside the country and you have a well funded nation state that will inspect your traffic
as such you cannot assume any VPN you set up will work consistently, you might get away with it for a week or two if you use port 443 (normal HTTPs) or some really random port you pick.
there are whole reddit threads dedicated how to bypass the GFW
as such you cannot assume any VPN you set up will work consistently,
Yes, that is the concern, so I would like to have multiple VPN choices before getting there, in case one does not work. Tailscale is already one choice now.
No idea what it means, but will explore more when I am available on weekend. Too complicated for non technical folk to understand.
Anyway, with tailscale on NAS, it will work there? Then I don’t need other backup VPN choices. All I need to do it keep NAS power on when I am there? What does it mean “use Tailscale to reach home” in plain language? I already installed tailscale on laptop to remotely access NAS via public WiFi.
How to set up VPS? Can it be done on NAS? Now I have NAS, hope NAS can solve every problem:) But I don’t think DS223j can do much, probably not possible with DS223j
Gmail or other google products are important part of my daily life. I cannot live without them every day.
No, I don’t know much about tailscale port, just install and run, follow online instruction or asking questions here, all I did is following step by step instruction.
No ideas about private synology vpn, probably that is something I was trying to ask. See if NAS package VPN Server can provide me other VPN options.