I have been following this tutorial on how to install ASP.NET Core 2.1 on Ubuntu. I was able to make an mvc application so far. But i dont know how I can allow remote access from the internet?

Maybe i should allow it from the firewall "ufw"? Allow traffic from port 80?

[https://odan.github.io/2018/07/17/aspnet-core-2-ubuntu-setup.html?fbclid=IwAR3X9eWJoDPo8y0_r5U-CBrdmOiSnvdHGfgZOkk6201b5GiZw1Rq3tBk8_w](http://)