Hi everybody , and thanks for your attention.
I'm new for Node-Red , and I have a "little" question for you.
I've made a temperature reader with my raspi and a DHT22,and I've made a dashboard with a gauge to read the temperature in my room.
Now,I am reading the value in internet through my router "natting" the 1880 port .Previously I've a DDNS service to convert my public IP to a DNS.
I've read here this file on github : https://github.com/node-red/cookbook.nodered.org/wiki/How-to-safely-expose-Node-RED-to-the-Internet and some other stuff on this forum , and I've understand that I need one of this things:
2-VPN pi to Host
3-TeamViewer or VNC
4-Something like webhookrelay
What is the best , secure and free , service to start to study ?
I am afraid to publish my raspi on internet .
Thank you very much for the attention and for the help.