index указан в http секции да, пробовал и в вирт хосте писать - не помогло
конфиг:

cat nginx.conf

user www www;
worker_processes 2;
error_log /var/log/nginx/error.log;
pid /var/run/nginx.pid;

events {
use epoll;
worker_connections 1024;
multi_accept on;
}

http {
index index.xml index.html;
include /etc/nginx/include/fastcgi_params;
access_log /var/log/nginx/access.log;
userid on;
log_format custom '[$time_local] $http_host $remote_addr "$request" $http_referer $http_cookie $bytes_sent $upstream_response_time';
access_log /var/log/nginx/access.log custom;
server_names_hash_bucket_size 128;
sendfile on;
tcp_nopush on;
tcp_nodelay on;

gzip on;
gzip_buffers 64 16k;
gzip_comp_level 1;
gzip_disable msie6;
include /etc/nginx/sites-enabled/*;
fastcgi_intercept_errors on;
}