Access localhost from the internet

port forwarding:

https://www.wikihow.com/Set-Up-Port-Forwarding-on-a-Router
https://www.tp-link.com/ae/faq-470.html
https://www.pcworld.com/article/244314/how_to_forward_ports_on_your_router.html

edit localhost

https://bowerwebsolutions.com/how-to-edit-your-local-host-file-for-testing-web-sites/
https://www.codeproject.com/articles/708718/how-to-change-default-port-of-iis-manager-from

local tunnel

install : npm install -g localtunnel
run: lt -p xxx

xxx = port #

https://www.npmjs.com/package/localtunnel

reference:
https://stackoverflow.com/questions/5108483/access-localhost-from-the-internet