nginx default setting

# You may add here your
# server {
#    ...
# }
# statements for each of your virtual hosts to this file

##
# You should look at the following URL's in order to grasp a solid understanding
# of Nginx configuration files in order to fully unleash the power of Nginx.
# http://wiki.nginx.org/Pitfalls
# http://wiki.nginx.org/QuickStart
# http://wiki.nginx.org/Configuration
#
# Generally, you will want to move this file somewhere, and start with a clean
# file but keep this around for reference. Or just disable in sites-enabled.
#
# Please see /usr/share/doc/nginx-doc/examples/ for more detailed examples.
##

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

root /usr/share/nginx/html;
    index index.html index.htm;

# Make site accessible from http://localhost/
    server_name localhost;

location / {
        # First attempt to serve request as file, then
        # as directory, then fall back to displaying a 404.
        try_files $uri $uri/ =404;
        # Uncomment to enable naxsi on this location
        # include /etc/nginx/naxsi.rules
    }

# Only for nginx-naxsi used with nginx-naxsi-ui : process denied requests
    #location /RequestDenied {
    #    proxy_pass http://127.0.0.1:8080;    
    #}

#error_page 404 /404.html;

# redirect server error pages to the static page /50x.html
    #
    #error_page 500 502 503 504 /50x.html;
    #location = /50x.html {
    #    root /usr/share/nginx/html;
    #}

# pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000
    #
    #location ~ \.php$ {
    #    fastcgi_split_path_info ^(.+\.php)(/.+)$;
    #    # NOTE: You should have "cgi.fix_pathinfo = 0;" in php.ini
    #
    #    # With php5-cgi alone:
    #    fastcgi_pass 127.0.0.1:9000;
    #    # With php5-fpm:
    #    fastcgi_pass unix:/var/run/php5-fpm.sock;
    #    fastcgi_index index.php;
    #    include fastcgi_params;
    #}

# deny access to .htaccess files, if Apache's document root
    # concurs with nginx's one
    #
    #location ~ /\.ht {
    #    deny all;
    #}
}

# another virtual host using mix of IP-, name-, and port-based configuration
#
#server {
#    listen 8000;
#    listen somename:8080;
#    server_name somename alias another.alias;
#    root html;
#    index index.html index.htm;
#
#    location / {
#        try_files $uri $uri/ =404;
#    }
#}

# HTTPS server
#
#server {
#    listen 443;
#    server_name localhost;
#
#    root html;
#    index index.html index.htm;
#
#    ssl on;
#    ssl_certificate cert.pem;
#    ssl_certificate_key cert.key;
#
#    ssl_session_timeout 5m;
#
#    ssl_protocols SSLv3 TLSv1 TLSv1.1 TLSv1.2;
#    ssl_ciphers "HIGH:!aNULL:!MD5 or HIGH:!aNULL:!MD5:!3DES";
#    ssl_prefer_server_ciphers on;
#
#    location / {
#        try_files $uri $uri/ =404;
#    }
#}