Description:
------------
Hi! 
When we have more than 987 virtual hosts on the server, so socket functions and ftp functions don't work. When we try other from other server virtual hosts config where is more than 1100 VH, so all is OK. We tried change linux, hw,.. but nothing ... Here is phpinfo http://mn31.gigant.cz/info.php

Thx a lot for any idea!

Reproduce code:
---------------
$fp = fsockopen("www.centrum.cz", 80, $errno, $errstr, 30);
if (!$fp) {
   echo "$errstr ($errno)<br />\n";
} else {
   $out = "GET / HTTP/1.1\r\n";
   $out .= "Host: www.centrum.cz\r\n";
   $out .= "Connection: Close\r\n\r\n";

   fwrite($fp, $out);
   while (!feof($fp)) {
       echo fgets($fp, 128);
   }
   fclose($fp);
}


Expected result:
----------------
Afther this script or any other with ftp or socket connection browser  is cyclicing and don't give any timeout.