Конфиг:

server
{
listen 80;
server_name mydomain.com;
access_log /var/log/nginx/mydomain.com.access.log;

location / {
root /var/www/mydomain.com;
index index.php;
try_files $uri /index.php?$query_string;
}

location ~* ^.+.(jpg|jpeg|gif|css|png|js|ico|xml|htm|html|txt)$ {
access_log off;
expires 30d;
root /var/www/mydomain.com;
}

location = /test/munin {
#root /var/cache/munin/www;
alias /var/cache/munin/www;
index index.html;
}

location ~ .php$ {
root /var/www/mydomain.com;
fastcgi_split_path_info ^(.+\.php)(.*)$;
fastcgi_pass backend;
fastcgi_index index.php;
fastcgi_param DOCUMENT_ROOT /var/www/mydomain.com;
fastcgi_param SCRIPT_FILENAME /var/www/mydomain.com$fastcgi_script_name;
include fastcgi_params;

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_intercept_errors on;
fastcgi_ignore_client_abort off;
fastcgi_connect_timeout 60;
fastcgi_send_timeout 30;
fastcgi_read_timeout 30;
fastcgi_buffer_size 128k;
fastcgi_buffers 4 245k;
fastcgi_busy_buffers_size 256k;
fastcgi_temp_file_write_size 256k;
}

location ~ /\.ht {
deny all;
}
}

upstream backend
{
server 127.0.0.1:9000;
}



Логи:

2011/05/26 01:07:29 [error] 872#0: *10 open() "/var/cache/munin/www/test/munin" failed (2: No such file or directory), client: xx.xx.xx.xx, server: mydomain.com, request: "GET /test/munin HTTP/1.1", host: "mydomain.com"