How is proxying done (in a general sense) for a single session?

Question

Nginx

There is aaa.com website. And there is bbb.com nginx is deployed on bbb. I want to make it so that I can give the right users a link bbb.com/1111, through which they can get to the closed area aaa.com But I don’t understand how this is done in a general sense. Is it possible to somehow indicate on bbb.com for nginx that using such and such a link, use such and such a session to visit that one? Or do I confuse everything and do it differently?

Answer 1

As an option, store sessions in memcached and nginx can check them and conditionally proxy them through https://nginx.org/ru/docs/http/ngx_http_memcached_...

Answer 2

The first thing that comes to mind is HTTP Auth on bbb.com/1111followed by a redirect.

Answer 3

You rather need to dig towards SSO (Single Sign- On ) https://ru.wikipedia.org/wiki/SSO your account (private part) on gmail.com and youtube.com