Server { listen 80 ; server_name ms.stulych.ru www.ms.stulych.ru;

add_header X-Frame-Options "SAMEORIGIN";
add_header X-XSS-Protection "1; mode=block";
add_header X-Content-Type-Options "nosniff";

access_log /var/log/nginx/ms_access.log main;
error_log /var/log/nginx/ms_error.log warn;

root /home/bitrix/ext_www/ms.stulych.ru/public;
index index.php;

charset utf-8;
server_name_in_redirect off;

location / {
try_files $uri $uri/ /index.php?$query_string;
}

location = /favicon.ico { access_log off; log_not_found off; }
location = /robots.txt { access_log off; log_not_found off; }

error_page 404 /index.php;

location ~ \.php$ {
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header Host $host:80;

proxy_pass http://127.0.0.1:8887;

set $imcontenttype "text/html; charset=utf-8";
set $docroot "/home/bitrix/ext_www/ms.stulych.ru/public";

proxy_ignore_client_abort off;
}

location ~ /\.(?!well-known).* {
deny all;
}
}

тут порт 80 описан)