###file_1###
server {
    listen 80 default_server;
    listen [::]:80 default_server ipv6only=on;

    root /var/www/dominio_1;
    index index.html index.htm;

    server_name dominio.com www.dominio.com;

    location / {
        try_files $uri $uri/ =404;
    }
}

###file_2###
server {
    listen 80;

    root /var/www/dominio_2;
    index index.html index.htm;

    server_name dominio2.com www.dominio2.com;

    location / {
        try_files $uri $uri/ =404;
    }
}