Nginx server configuration for running a CodeIgniter based site with PHP-FPM. https://www.wptron.com/configure-nginx-for-codeigniter/

example.com

#Author: Arup Ghosh
#Description: https://gist.github.com/arupgsh/e50f4cd05547f0334412
#2016
server {
    listen 80 default_server;
    listen [::]:80 default_server ipv6only=on;
    server_name example.com www.example.com;

    root   /var/www/example.com/public_html/;
    index  index.php;
    error_log /var/www/example.com/error.log;

    # set expiration of assets to MAX for caching
        location ~* \.(ico|css|js|gif|jpe?g|png)(\?[0-9]+)?$ {
                expires max;
                log_not_found off;
        }
    # main codeigniter rewrite rule
    location / {
        try_files $uri $uri/ /index.php;
    }

        # php parsing
        location ~ .php$ {
            root           /var/www/example.com/public_html/;
            try_files $uri =404;
            fastcgi_pass   unix:/var/run/php5-fpm.sock;
            fastcgi_index  index.php;
            fastcgi_param  SCRIPT_FILENAME  $document_root$fastcgi_script_name;
            include        fastcgi_params;
            fastcgi_buffer_size 128k;
            fastcgi_buffers 256 4k;
            fastcgi_busy_buffers_size 256k;
            fastcgi_temp_file_write_size 256k;
        }

}