I cannot deploy Strapi in my Nginx Server

Questions and Answers
2

try set:
{
proxy_set_header Host $http_host;
proxy_set_header X-Forwarded-For $add_x_forwarded_for;
proxy_set_header X-Real-IP $remote_addr;
proxy_pass http://backend;
}

BTW: Does your backend(Strapi) server and nginx server in same server?