How to get http access to a server with a gray IP from the Internet by any means?

Question

Remote access

Preferably free. Do not offer different tunneling technologies - it's all the same.
If I answered my own question, it doesn't mean that there are no other options. Think carefully about the question. Maybe even come up with your own technology. But most likely it already exists and you have invented the wheel, but this is not important.
Here is one of the options:
There is a clustering technology. How to optimize it?
All questions on the topic:
How to use PHP on a hosting with a "white" IP to make an http tunnel to connect to a server with a "gray" IP, which is behind NAT'om?
How to get http access to a server with a gray IP from the Internet by any means?
There is a technology of clustering. How to optimize it?
How to create a persistent tunneling connection using php?
Will NAS timeouts interfere with my tunneling?
Can php receive and immediately process part of a request without waiting for the request to finish receiving?
Can php send information in chunks?
Most recent discussion.

Answer 1

You answered your question with specific nonsense, wrote nonsense, marked it as a decision, wrote a second no less delusional question, do not produce identical entities.