nginx mutliple apps: "404 Not Found" issue

[eluser]Unknown[/eluser]
Hi Folks,

I've been struggling with a "No input file specified" issue, and I've been trying to figure out the routing issue. I am using fast-cgi, nginx (version 0.7.65) and CI 2.02

Code:

# http://www.example.net/ci/                     /* 403 Forbidden */
# http://www.example.net/ci/index.php            /* Works */
# http://www.example.net/ci/index.php/welcome    /* 404 Not Found  */

The reason I see the problem is because I see this in the CI logs for *all* http requests

Code:

DEBUG - 2011-06-05 19:47:23 --> No URI present. Default controller set.

I did not want to litter my first post with code, so here is the pertinent info presented neatly:

I changed AUTO to others, and no change in behavior.

Code:

# /home/examples/example.net/public_html/ci/application/config/config.php
#standard configs except for the following:
$config['base_url']     = 'http://www.example.net/ci/';
$config['index_page'] = 'index.php';
$config['uri_protocol'] = 'AUTO';

I tried adding a new loc for /ci and that did not work (i.e got the "No input file specified" error) so I took that off to get back to basics.

Code:

# /etc/nginx/sites-enabled/www.example.net


server {
    server_name  example.net;
    rewrite ^(.*) http://www.example.net$1 permanent;
}
server {
    listen   80;
    server_name www.example.net;
    access_log /srv/www/www.example.net/logs/access.log;
    error_log /srv/www/www.example.net/logs/error.log debug;
    client_max_body_size 3M;
    root   /srv/www/www.example.net/public_html;

    location / {
        index  index.html index.htm index.php;
        if (!-e $request_filename) {
            rewrite ^.*$ /index.php last;
         }
    }
    location ~ \.php$ {
        include /etc/nginx/fastcgi_params;
              fastcgi_pass  127.0.0.1:9000;
        fastcgi_index index.php;
        fastcgi_param  SCRIPT_FILENAME  /srv/www/www.example.net/public_html$fastcgi_script_name;
    }
}

I went through the .httaccess route to remove the index.php, but did not want to try too many things at once. I would like to get the bare bones working and then add other layers.

Interestingly, $_SERVER['REQUEST_URI'] puts the correct URI, but $this->uri->uri_string() is blank.

I'd be grateful for any advice and thanks in advance.