Unable to run php script with nginx

I installed nginx on my Lubuntu 13.04 32 bit using:

sudo apt-get install php5-fpm
sudo apt-get install mercurial libpcre3-dev libssl-dev
hg clone -r stable-1.4 http://hg.nginx.org/nginx nginx
cd nginx
auto/configure --with-http_ssl_module 
make
sudo make install

After it I disabled apache:

sudo kill $(pidof apache2)
sudo update-rc.d -f apache2 remove

and I edited the nginx.conf, that now is:

worker_processes  1;


events
{
    worker_connections  1024;
}


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

    sendfile           on;
    keepalive_timeout  65;

    server
    {
        listen       80;
        server_name  localhost;
        index        index.html index.php;

        location /

        {
            root   html;
            index  index.html index.php;
        }

        # 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;
        }

        error_page   500 502 503 504  /50x.html;
        location = /50x.html
        {
            root   html;

        }
    }
}

So I started nginx, I wrote a test.php script inside the html directory with only

    echo 'OK!';

and I opened it inside the browser, but it doesn't work. The error is:

[error] 2886#0: *1 connect() failed (111: Connection refused) while
connecting to upstream, client: 127.0.0.1, server: localhost, request:
"GET /test.php HTTP/1.1", upstream: "fastcgi://127.0.0.1:9000", host:
"localhost"

php5-fpm seems to be already started, since if I try sudo php5-fpm, I get this error:

ERROR: An another FPM instance seems to already listen on /var/run/php5-fpm.sock

Answer

Your PHP-FPM installation is set up to use sockets and not TCP.

Change this line:

fastcgi_pass fastcgi_pass 127.0.0.1:9000;

To: fastcgi_pass unix:/var/run/php5-fpm/php5-fpm.sock;

Alternatively you can modify your nginx.conf file's listen = to use a port instead of the socket.