Routing php requests with nginx using fastcgi results in 404 error - php

Question

I'm new to nginx and want to configure it so the user can access URLs like
http://[ip_address]/dev/index.php/customer/account/login/
I think this may be related to using FastCGI to process the request and pass it to Magento. However, whenever I access it, i see a 404 message. I can confirm that the user running nginx and owning the directory and files is www-data. So it has access to it. I need help configuring nginx & FastCGI properly so the request loads the correct page.
All of my application is in dev/ folder. Here's the relevant chunk of default file in /etc/nginx/sites-available/defaul:
root /var/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 _ test.xxx.com;
location /dev/ {
# First attempt to serve request as file, then
# as directory, then fall back to displaying a 404.
try_files $uri $uri/ /index.php$is_args$args;
}
location /dev/app/ {
deny all;
}
location ~ \.php$ {
include snippets/fastcgi-php.conf;
# With php-fpm (or other unix sockets):
fastcgi_pass unix:/var/run/php/php7.0-fpm.sock;
# With php-cgi (or other tcp sockets):
#fastcgi_pass 127.0.0.1:9000;
}

Answer 1

Here is my nginx config. May help you.
location ~ \.php$ {
try_files $uri =404;
fastcgi_split_path_info ^(.+\.php)(/.+)$;
fastcgi_pass unix:/var/run/php/php7.0-fpm.sock;
fastcgi_read_timeout 900;
fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
fastcgi_param SCRIPT_NAME $fastcgi_script_name;
fastcgi_index index.php;
include fastcgi_params;
}