I have a Synology NAS accessible inside by local network over direct IP and URL:
I have docker running inside my synology NAS with some applications working on different ports. For example, when inside my home local network, I can access those apps with these URLS:
APP 1 accessible over: http://192.168.5.10:9000 APP 2 accessible over: http://192.168.5.10:9500 APP 3 accessible over: http://192.168.5.10:9800
I also have openVPN configured, so when away from home, I can connect to it and use the above URLs to access those same APPs.
This way I don't expose any port on my router other than openVPN. But despite my NAS being reachable only on local network or over my VPN, I want to add another layer of security by accessing those APPs over https instead of http, adding a layer of SSL encryption on top of my setup.
For that, I understood my Synology NAS has a reverse proxy feature which could serve me those APPs over https. I have thus added the following configuration in my Synology Application Portal > reverse proxy interface:
SOURCE Protocol: HTTPS Hostname: app.cloud.local Port: 443 DESTINATION Protocol: HTTP Hostname: 192.168.5.10 Port: 9000
I was hoping then to be able to use my browser and visit https://app.cloud.local and get a secure access to my APP1 at http://192.168.5.10. Instead, nothing happens, the page tries to load and simply hangs without doing anything.
Maybe I am understanding the networking wrong, but it seems my browser can't translate https://app.cloud.local into anything. What am I doing wrong? Thank you.