My customized nginx.conf file for optimization and performance boost.

nginx.conf

# For more information on configuration, see:
#   * Official English Documentation: http://nginx.org/en/docs/
#   * Official Russian Documentation: http://nginx.org/ru/docs/

user nginx;
worker_processes 1;
error_log /var/log/nginx/error.log;
pid /run/nginx.pid;

events {
    worker_connections 1024;
    multi_accept on;
    use epoll;
}

http {
    log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
                      '$status $body_bytes_sent "$http_referer" '
                      '"$http_user_agent" "$http_x_forwarded_for"';


    #access_log  /var/log/nginx/access.log  main;
    access_log off;


    sendfile        on;
    tcp_nopush     on;
    tcp_nodelay        on;
    server_tokens off;


    open_file_cache max=1000 inactive=20s;
    open_file_cache_valid 30s;
    open_file_cache_min_uses 2;
    open_file_cache_errors on;


    client_body_buffer_size 10K;
    client_header_buffer_size 1k;
    client_max_body_size 8m;
    large_client_header_buffers 2 1k;


    keepalive_timeout 15;
    reset_timedout_connection on;
    client_body_timeout 12;
    client_header_timeout 12;
    send_timeout 10;


    keepalive_requests 10000;


    gzip             on;
    gzip_static on;
    gzip_vary on;
    gzip_comp_level  2;
    gzip_min_length  1000;
    gzip_proxied     expired no-cache no-store private auth;
    gzip_types text/html text/plain text/css application/json application/x-javascript text/xml application/xml application/xml+rss text/javascript application/javascript font/ttf application/vnd.ms-fontobject application/x-font-ttf font/opentype image/svg+xml;
    gzip_disable "MSIE [1-6]\.(?!.*SV1)";


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


    # Load modular configuration files from the /etc/nginx/conf.d directory.
    # See http://nginx.org/en/docs/ngx_core_module.html#include
    # for more information.
    include /etc/nginx/conf.d/*.conf;

    server {
        listen       80 default_server;
        listen       [::]:80 default_server;
        server_name  _;
        root         /usr/share/nginx/html;

        # Load configuration files for the default server block.
        #include /etc/nginx/default.d/*.conf;

        location / {
        }

        error_page 404 /404.html;
            location = /40x.html {
        }

        error_page 500 502 503 504 /50x.html;
            location = /50x.html {
        }
    }
}