my default nginx site.conf

##
# 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.
# https://www.nginx.com/resources/wiki/start/
# https://www.nginx.com/resources/wiki/start/topics/tutorials/config_pitfalls/
# https://wiki.debian.org/Nginx/DirectoryStructure
#
# In most cases, administrators will remove this file from sites-enabled/ and
# leave it as reference inside of sites-available where it will continue to be
# updated by the nginx packaging team.
#
# This file will automatically load configuration files provided by other
# applications, such as Drupal or Wordpress. These applications will be made
# available underneath a path with that package name, such as /drupal8.
#
# Please see /usr/share/doc/nginx-doc/examples/ for more detailed examples.
##

# Default server configuration
#
server {
	listen 80 default_server;
	listen [::]:80 default_server;

	# SSL configuration
	#
	# listen 443 ssl default_server;
	# listen [::]:443 ssl default_server;
	#
	# Note: You should disable gzip for SSL traffic.
	# See: https://bugs.debian.org/773332
	#
	# Read up on ssl_ciphers to ensure a secure configuration.
	# See: https://bugs.debian.org/765782
	#
	# Self signed certs generated by the ssl-cert package
	# Don't use them in a production server!
	#
	# include snippets/snakeoil.conf;

	root /www;

	# Add index.php to the list if you are using PHP
	index index.php index.html index.htm index.nginx-debian.html;

	server_name _;
	rewrite_log on;

	location / {
		# First attempt to serve request as file, then
		# as directory, then fall back to displaying a 404.
		#try_files $uri $uri/ /index.php?$query_string;
		try_files $uri $uri/ @parent_fallback;
		autoindex on;
		#proxy_buffer_size          500k;
		#proxy_buffers              4 500k;
		#proxy_busy_buffers_size    500k;
	}
	location @parent_fallback {
		rewrite ^(?<parent>.*)/.+  $parent;
	}

	# pass PHP scripts to FastCGI server
	#
	location ~ ^/php56/.+\.php$ {
		include snippets/fastcgi-php.conf;

		# With php-fpm (or other unix sockets):
		fastcgi_pass unix:/var/run/php/php5.6-fpm.sock;
		# With php-cgi (or other tcp sockets):
		#fastcgi_pass 127.0.0.1:9000;
		fastcgi_buffers            16 500k;
		fastcgi_buffer_size        500k;
		fastcgi_busy_buffers_size  500k;
	}
	location ~ ^/php73/.+\.php$ {
		include snippets/fastcgi-php.conf;

		# With php-fpm (or other unix sockets):
		fastcgi_pass unix:/var/run/php/php7.3-fpm.sock;
		# With php-cgi (or other tcp sockets):
		#fastcgi_pass 127.0.0.1:9000;
	}
	location ~ \.php$ {
		include snippets/fastcgi-php.conf;

		# With php-fpm (or other unix sockets):
		fastcgi_pass unix:/var/run/php/php7.4-fpm.sock;
		# With php-cgi (or other tcp sockets):
		#fastcgi_pass 127.0.0.1:9000;
	}

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


# Virtual Host configuration for example.com
#
# You can move that to a different file under sites-available/ and symlink that
# to sites-enabled/ to enable it.
#
#server {
#	listen 9000;
#	listen [::]:9000;
#
#	server_name nginx-php5.6-fpm;
#
#	root /www;
#	index index.php;
#
#        location / {
#                # First attempt to serve request as file, then
#                # as directory, then fall back to displaying a 404.
#                #try_files $uri $uri/ /index.php?$query_string;
#                try_files $uri $uri/ /index.php @rewrite;
#                autoindex on;
#        }
#        location @rewrite {
#                rewrite ^(.*)/.+ $1/ last;
#        }
#
#        # pass PHP scripts to FastCGI server
#        #
#        location ~ \.php$ {
#                include snippets/fastcgi-php.conf;
#
#                # With php-fpm (or other unix sockets):
#                fastcgi_pass unix:/var/run/php/php5.6-fpm.sock;
#                # With php-cgi (or other tcp sockets):
#                #fastcgi_pass 127.0.0.1:9000;
#        }
#
#        # deny access to .htaccess files, if Apache's document root
#        # concurs with nginx's one
#        #
#        location ~ /\.ht {
#                deny all;
#        }
#
#}