Access website through internet using Port Mapping

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server

networking

network

I want to make my website on my home computer can be accessed all over the world from any computer

at first i make my home computer to have fixed local ip and fixed public ip to be sure that they will not change any time

second i put my website on the IIS and make it can be accessed in my local network like this http://192.168.1.220:8000/index.html and it works fine

for information: i put it in port 8000 as i show in the link of my website

Now i want to make it accessed over internet

i searched on internet alot someone tell me to setup http server and someone else told me to setup a program i do not remember its name it was about DNS

now i want to make it without additional programs

someone told me that i can do it using port mapping, is to map port 80 in the router to port 8000 and the fixed local IP of my home computer

so now in can be accessed over network when a request come to the router with the public ip of the router (of my network too) it will reach at port 80 so the router map it to port 8000 and ip 192.168.1.220 so open my website


is this possible ? and it will not affect the internet services?