CPanel POP account creation script. Runs fine on Win2000, not on Linux

[singhk]

I am facing a weird problem. This is a POP account creation script. If I run it from my Win2000 PC, it creates the POP account. But when I run this script from the Linux server (CPanel is also on that server), it does not create any POP account.

<? 
$host = "hostname"; 
$socket = fsockopen($host,2082); 
socket_set_timeout($socket,30); 

$cpaneluser = "cpanel_username"; 
$cpanelpass = "cpanel_password"; 
$authstr = "$cpaneluser:$cpanelpass"; 

$domain = "domainname"; 
$email="desired_username"; 
$password="desired_password"; 
$quota=10; 

$pass = base64_encode($authstr); 
$in = "GET /frontend/bluelagoon/mail/doaddpop.html?email=$email&domain=$domain&password=$password&quota=$quota HTTP/1.0\r\nAuthorization: Basic $pass \r\n\r\n"; 
print $in; 

fputs($socket,$in); 
fclose( $socket ); 

?> 

For information sake, the PHP version on Win2000 is 4.3.1 and on Linux is 4.3.4 (tried it also on 4.3.3).

Any help will be highly appreciated.

K Singh