How to configure nginx to issue files with Cyrillic characters?

Question

Nginx

Server on ubuntu 14.04, nginx and php5-fpm.
When opening files whose names contain Cyrillic characters, the server issues a 404 error.
In nginx settings: charset utf-8;

Answer 1

What does the locale command say?
Most likely you need to set
LC_ALL="ru_RU.UTF-8"