How to make redirect "dots" after site root in nginx?

Question

Nginx

Colleagues, good afternoon.
Please tell me how to configure nginx so that it processes "." at the end of the site and did a redirect to the root of the site?
There is www.site.ru there a lot of things, but recently they found www.site.ru. also works, and www.site.ru./ works (it opens www.site.ru.) here's how to force . and ./ handled by nginx? Thank you very much.
Tried with return 301 and with location =/. but not working yet.

Answer 1

The answer helped on stackoverflow
https://habr.com/post/172999/