Error with php (fcgi) on ubuntu hardy.

gremu nginx-forum at
Wed Dec 16 03:46:59 MSK 2009

Hi I tried to setup an ubuntu server with nginx that is serving php sites with php fcgi.

I set up my config files like this:

server {
        listen   80;
        server_name  XXXXX;

        access_log  /var/log/nginx/localhost.access.log;

        location / {
                root   /var/www/nginx-default;
                index  index.html index.htm;

        location ~ \.php$ {
                include        /etc/nginx/fastcgi_params;

and I started php with the following command:

php-cgi -b

My fastcgi_params file looks like:

fastcgi_param  QUERY_STRING       $query_string;
fastcgi_param  REQUEST_METHOD     $request_method;
fastcgi_param  CONTENT_TYPE       $content_type;
fastcgi_param  CONTENT_LENGTH     $content_length;

fastcgi_param  SCRIPT_NAME        $document_root$fastcgi_script_name;
fastcgi_param  REQUEST_URI        $request_uri;
fastcgi_param  DOCUMENT_URI       $document_uri;
fastcgi_param  DOCUMENT_ROOT      $document_root;
fastcgi_param  SERVER_PROTOCOL    $server_protocol;

fastcgi_param  GATEWAY_INTERFACE  CGI/1.1;
fastcgi_param  SERVER_SOFTWARE    nginx/$nginx_version;

fastcgi_param  REMOTE_ADDR        $remote_addr;
fastcgi_param  REMOTE_PORT        $remote_port;
fastcgi_param  SERVER_ADDR        $server_addr;
fastcgi_param  SERVER_PORT        $server_port;
fastcgi_param  SERVER_NAME        $server_name;

# PHP only, required if PHP was built with --enable-force-cgi-redirect
fastcgi_param  REDIRECT_STATUS    200;

Now I want to access a php page. But all I get is an 502 Bad Gateway Error. I know this means that something is wrong with the fcgi server - so I tried to find a hint in the error.log of nginx where I found this:

2009/12/16 01:36:59  26057#0: *1 connect() to failed (22: Invalid argument) while connecting to upstream, client: XXXXX, server: XXXXX, URL: "/index.php", upstream: "fastcgi://", host: "XXXXX"

This confused me because I don't understand this error message and also found no hint of something similiar with google. So maybe you have a cool idea that is taking me out of this misconfiguration.

I would be really happy if this works - I want to leave apache as fast as possible. Thanks!

Posted at Nginx Forum:,30750,30750#msg-30750

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