How to configure Nginx to ignore letter case in the host name?

I am trying to set my Nginx server to igonre if the visitors use lower or upper case in the address .

For example, I want that both www.mydomain.com/section and www.mydomain.com/Section point to the same directory.

I searched a lot on the net, and in the documentation, but couldn't find the answer.

Anyone?

My VHost configuration goes like that:

server {
## Your website name goes here.
server_name server.com;
## Your only path reference.
root /var/www;
listen 80;
client_max_body_size 40M;
## This should be in your http block and if it is, it's not needed here.
index index.php index.htm index.html;

include conf.d/drop;

location / {
# This is cool because no php is touched for static content
try_files $uri $uri/ /index.php?q=$uri&$args;
}

location ~ \.php$ {
fastcgi_buffers 4 256k;
fastcgi_buffer_size 128k;
fastcgi_intercept_errors on;
include fastcgi_params;
fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
fastcgi_pass unix:/dev/shm/php-fpm-www.sock;
fastcgi_max_temp_file_size 50M;


}

# BEGIN W3TC Page Cache cache
location ~ /wp-content/w3tc/pgcache.*html$ {
add_header Vary "Accept-Encoding, Cookie";
}

location ~ /wp-content/w3tc/pgcache.*gzip$ {
gzip off;
types {}
default_type text/html;
add_header Vary "Accept-Encoding, Cookie";
add_header Content-Encoding gzip;
}
# END W3TC Page Cache cache
# BEGIN W3TC Browser Cache
gzip on;
gzip_types text/css application/x-javascript text/x-component text/richtext image/svg+xml text/plain text/xsd text/xsl text/xml image/x-icon;
location ~ \.(css|js|htc)$ {
}
location ~ \.(html|htm|rtf|rtx|svg|svgz|txt|xsd|xsl|xml)$ {
}
location ~ \.(asf|asx|wax|wmv|wmx|avi|bmp|class|divx|doc|docx|eot|exe|gif|gz|gzip|ico|jpg|jpeg|jpe|mdb|mid|midi|mov|qt|mp3|m4a|mp4|m4v|mpeg|mpg|mpe|mpp|otf|odb|odc|odf|odg|odp|ods|odt|ogg|pdf|png|pot|pps|ppt|pptx|ra|ram|svg|svgz|swf|tar|tif|tiff|ttf|ttc|wav|wma|wri|xla|xls|xlsx|xlt|xlw|zip)$ {
}
# END W3TC Browser Cache
# BEGIN W3TC Page Cache core
rewrite ^(.*\/)?w3tc_rewrite_test$ $1?w3tc_rewrite_test=1 last;
set $w3tc_rewrite 1;
if ($request_method = POST) {
set $w3tc_rewrite 0;
}
if ($query_string != "") {
set $w3tc_rewrite 0;
}
if ($http_host !~ "server.com") {
set $w3tc_rewrite 0;
}
set $w3tc_rewrite3 1;
if ($request_uri ~* "(\/wp-admin\/|\/xmlrpc.php|\/wp-(app|cron|login|register|mail)\.php|\/feed\/|wp-.*\.php|index\.php)") {
set $w3tc_rewrite3 0;
}
if ($request_uri ~* "(wp\-comments\-popup\.php|wp\-links\-opml\.php|wp\-locations\.php)") {
set $w3tc_rewrite3 1;
}
if ($w3tc_rewrite3 != 1) {
set $w3tc_rewrite 0;
}
if ($http_cookie ~* "(comment_author|wp\-postpass|wordpress_\[a\-f0\-9\]\+|wordpress_logged_in)") {
set $w3tc_rewrite 0;
}
if ($http_user_agent ~* "(W3\ Total\ Cache/0\.9\.2\.4)") {
set $w3tc_rewrite 0;
}
set $w3tc_ua "";
set $w3tc_ref "";
set $w3tc_ssl "";
set $w3tc_enc "";
if ($http_accept_encoding ~ gzip) {
set $w3tc_enc _gzip;
}
set $w3tc_ext "";
if (-f "$document_root/wp-content/w3tc/pgcache/$request_uri/_index$w3tc_ua$w3tc_ref$w3tc_ssl.html$w3tc_enc") {
set $w3tc_ext .html;
}
if ($w3tc_ext = "") {
set $w3tc_rewrite 0;
}
if ($w3tc_rewrite = 1) {
rewrite .* "/wp-content/w3tc/pgcache/$request_uri/_index$w3tc_ua$w3tc_ref$w3tc_ssl$w3tc_ext$w3tc_enc" last;
}
# END W3TC Page Cache core
}