Trouble connecting with FTP

[laredotornado]

Hi,

I'm using PHP 4.3 on Apache 2, connecting to a VSFTP server running on
Fedora Core 5. The Fedora machine is my home computer, which sits
behind a router. I have opened up the FTP port, and I can connect fine
from an FTP client if I'm using active mode. However the following
code fails to upload a file

// set up basic connection
$conn_id = ftp_connect($ftp_host);
if ($conn_id) {
// login with username and password
$login_result = ftp_login($conn_id,
$ftp_user, $ftp_pwd);
if ($login_result) {
// Disable passive mode
ftp_pasv($conn_id, false);

// upload the file
$remote_path = "$ftp_dir/" .
SQL_PRODUCT_SHORT_FILE_NAME;
ftp_delete($conn_id,
$remote_path);
// line 96
$upload = ftp_put($conn_id,
$remote_path, $sql_file_path, FTP_ASCII);
// check upload status
if (!$upload) {
die("FTP upload has
failed!");
}
with the following

Warning: ftp_put() [function.ftp-put]: Failed to establish connection.
in /usr/local/apache2/htdocs/super_admin_rs/sa_prod_fns.php on line 96
FTP upload has failed!

I have verified that the file in question exists. Any other ideas on
how I can troubleshoot this problem?

Thanks, - Dave