Why does an Apache stub open instead of a website?

Question

Nginx

Hello! I have a server with Ubuntu 16.04 and the web server works in conjunction with Apache 2.4 +
Nginx

server {
        listen       *:80;
        server_name  xxx.ru www.xxx.ru;
        server_name_in_redirect off;
        access_log  /home/xxxx/logs/nginx.access.log  combined;

        location ~* ^.+\.(jpg|jpeg|gif|png|ico|css|zip|tgz|gz|js)$ {
        root /home/xxxx;
        index  index.php;
        }

        location / {
        proxy_pass   http://127.0.0.1:81;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Forwarded-Proto $scheme;
        }

        location ~ /\.ht {
        deny  all;
        }
}

<VirtualHost *:81>
        ServerName xxx.ru
        ServerAlias www.xxx.ru 
        ServerAdmin [email protected]
        <Directory /home/xxx>
        Require all granted
        </Directory>
        AssignUserID yyy yyy
        DocumentRoot /home/xxx
        ErrorLog /home/xxx/logs/apache.error.log
        CustomLog /home/xxxl/logs/apache.access.log combined
</VirtualHost>

nginx.conf

user www-data;
worker_processes auto;
pid /run/nginx.pid;

events {
  worker_connections 768;
  # multi_accept on;
}

http {

  ##
  # Basic Settings
  ##

  sendfile on;
  tcp_nopush on;
  tcp_nodelay on;
  keepalive_timeout 65;
  types_hash_max_size 2048;
  # server_tokens off;

   server_names_hash_bucket_size 64;
  # server_name_in_redirect off;

  include /etc/nginx/mime.types;
  default_type application/octet-stream;

  ##
  # SSL Settings
  ##

  ssl_protocols TLSv1 TLSv1.1 TLSv1.2; # Dropping SSLv3, ref: POODLE
  ssl_prefer_server_ciphers on;

  ##
  # Logging Settings
  ##

  access_log /var/log/nginx/access.log;
  error_log /var/log/nginx/error.log;

  ##
  # Gzip Settings
  ##

  gzip on;
  gzip_disable "msie6";

  # gzip_vary on;
  # gzip_proxied any;
  # gzip_comp_level 6;
  # gzip_buffers 16 8k;
  # gzip_http_version 1.1;
  # gzip_types text/plain text/css application/json application/javascript text/xml application/xml application/xml+rss text/javascript;

  ##
  # Virtual Host Configs
  ##

  include /etc/nginx/conf.d/*.conf;
  include /etc/nginx/sites-enabled/*;
}


#mail {
#	# See sample authentication script at:
#	# http://wiki.nginx.org/ImapAuthenticateWithApachePhpScript
# 
#	# auth_http localhost/auth.php;
#	# pop3_capabilities "TOP" "USER";
#	# imap_capabilities "IMAP4rev1" "UIDPLUS";
# 
#	server {
#		listen     localhost:110;
#		protocol   pop3;
#		proxy      on;
#	}
# 
#	server {
#		listen     localhost:143;
#		protocol   imap;
#		proxy      on;
#	}
#}

Answer 1

Nginx is misconfigured