Using #include <WiFiClientSecure.h> and #include <BlynkSimpleEsp32_SSL.h> libraries

Is there anything else I should change while using those two libraries besides the port?
to what port I should change?

   client.setServer(mqtt_server, 1883);// Is This port will change too? this command responsible for connecting to the rpi
 Blynk.config(auth, IPAddress(192,168,100,247), 8080);//To what port number I should change this?

Please, have a look at the comments in the code.
Thank you :blush:

Are you using MQTT ?
If so then port 8883 is normally used for MQTT over SSL.

Do you have a local Blynk server on 192.168.100.247 with a Let’s Encrypt certificate installed?

Pete.

No I didn’t download it. I am only using rpi, esp 32 and Mobile application (Blynk)
I thought this encryption is needed when I want to use (Websites)
Like here https://pimylifeup.com/raspberry-pi-ssl-lets-encrypt/
in this link I suppose to put in the code a link (www.example.com)

That’s why I didn’t download it.
Thank you.

I’m still no clearer about what it is that you are trying to achieve.

Pete.