Testing a virtual hosted NGINX site

Figured it out: forgot to include the fastcgi params. D'oh!

–-

I'm having a bit of difficulty testing a virtually hosted site on NGINX. I'm in the process of updating a website for a client. It's currently hosted elsewhere, and the domain name points to that other host. I've installed the new version of the site on my linode, and have modified my desktop's /etc/hosts file to include:

my.linode.ip    mydomain.com

Yet, when I try accessing mydomain.com, all I get is a blank screen. No HTML is rendered or sent, but there's also no error in any of my logs. My server configuration is:

/opt/nginx/nginx.conf:

#user  nobody;
worker_processes  1;

#error_log  logs/error.log;
#error_log  logs/error.log  notice;
#error_log  logs/error.log  info;

#pid        logs/nginx.pid;

events {
    worker_connections  1024;
}

http {
    include       mime.types;
    default_type  application/octet-stream;

    #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  logs/access.log  main;

    sendfile        on;
    #tcp_nopush     on;

    #keepalive_timeout  0;
    keepalive_timeout  65;

    #gzip  on;

    include /opt/nginx/sites-enabled/*; # <-- I dynamically include all virtually hosted sites here

    server {
        listen       80;
        server_name  localhost;

        #charset koi8-r;

        #access_log  logs/host.access.log  main;

        location / {
            root   html;
            index  index.html index.htm;
        }

        #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   html;
        }

        # proxy the PHP scripts to Apache listening on 127.0.0.1:80
        #
        #location ~ \.php$ {
        #    proxy_pass   http://127.0.0.1;
        #}

        # pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000
        #
        #location ~ \.php$ {
        #    root           html;
        #    fastcgi_pass   127.0.0.1:9000;
        #    fastcgi_index  index.php;
        #    fastcgi_param  SCRIPT_FILENAME  /scripts$fastcgi_script_name;
        #    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;

    #    location / {
    #        root   html;
    #        index  index.html index.htm;
    #    }
    #}

    # HTTPS server
    #
    #server {
    #    listen       443 ssl;
    #    server_name  localhost;

    #    ssl_certificate      cert.pem;
    #    ssl_certificate_key  cert.key;

    #    ssl_session_cache    shared:SSL:1m;
    #    ssl_session_timeout  5m;

    #    ssl_ciphers  HIGH:!aNULL:!MD5;
    #    ssl_prefer_server_ciphers  on;

    #    location / {
    #        root   html;
    #        index  index.html index.htm;
    #    }
    #}
}

And my virutal host file is:

server {
    listen 80;
    server_name mydomain.com;
    root /home/me/www/mydomain/web;

    location / {
        try_files $uri /app.php$is_args$args;
    }

    # DEV - remove when things are working
    location ~ ^/(app_dev|config)\.php(/|$) {
        fastcgi_pass unix:/var/run/php/php7.1-fpm-mydomain.sock;
        fastcgi_split_path_info ^(.+\.php)(/.*)$;
        fastcgi_param SCRIPT_FILENAME $realpath_root$fastcgi_script_name;
        fastcgi_param DOCUMENT_ROOT $realpath_root;
    }

    # PROD
    location ~ ^/app\.php(/|$) {
        fastcgi_pass unix:/var/run/php/php7.1-fpm-mydomain.sock;
        fastcgi_split_path_info ^(.+\.php)(/.*)$;
        fastcgi_param SCRIPT_FILENAME $realpath_root$fastcgi_script_name;
        fastcgi_param DOCUMENT_ROOT $realpath_root;
        internal;
    }

    location ~ /.well-known {
        allow all;
    }

    location ~ \.php$ {
        return 404;
    }

    error_log /var/log/nginx/mydomain_error.log;
    access_log /var/log/nginx/mydomain_access.log;
}

The access log has entries that look like:

173.44.91.36 - - [26/Jul/2017:18:34:10 -0400] "GET / HTTP/1.1" 200 5 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:54.0) Gecko/20100101 Firefox/54.0"

And, again, no errors in any log (NGINX, PHP-FPM, or Symfony).

All of this makes me wonder if it's not matching on the sent in domain name at all. But, I would think that it wouldn't return a 200 status code if that was the case.

For clarity's sake, the domain name itself still points to the old hosting/version of the site. I didn't want to flip the switch to my linode until I was sure everything was working correctly.

Any ideas? This lack of error log clues to track down the problem is frustrating.