Connection Issues

[froger]

Well, the problem started about 6 days ago. The script I have been using for some time to send Net Alerts had suddenly started giving me connection issues. Everytime I try and go onto my page I will get a connection timed out error. Here is the script...

function netAlert($sub_id, $title, $msg_page) {     
// sends a Net Alert to phone $sub_id with URL $msg_page entitled $title
// written by Roy Wilkie June, 2007  
// This only works with iDen phones (Nextel)  
// $sub_id is your subscriber id, find it under 'my account' in  openwave.

// for more Nextel text messaging info see;
//  http://developer.sprint.com/site/global/develop/technologies/wireless_markup_msg/developer_guide/p_coding_messaging.jsp

$fp = fsockopen("atlsnup2.adc.nexteldata.net", 4445, $errno, $errstr,  90);
if (!$fp) {
    print "$errstr ($errno)<br />\n";
} else {

    $page = "\r<?xml version=\"1.0\"?>";
    $page .= "<!DOCTYPE ALERT PUBLIC \"-//PHONE.COM//DTD ALERT  1.0//EN\" \"http://www.phone.com/dtd/alert1.xml\">";
    $page .= "<ALERT LABEL = \"".$title."\" COUNT = \"1\" HREF = \"\"  URGENCY = \"HIGH\" />";
    $page .= "</xml>\r\r";

    $content_length = strlen($page) - 3;  

    $head = "POST /ntfn/add HTTP/1.0\r\n";
    $head .= "Accept: text\r\n";
    $head .= "Content-type: application/vnd.uplanet.alert\r\n";
    $head .= "Content-Length: ".$content_length."\r\n";
    $head .= "x-up-upnotifyp-version: upnotifyp/3.0\r\n";
    $head .= "x-up-subno: ".$sub_id."\r\n";
    $head .= "x-up-ntfn-channel: push\r\n";
    $head .= "x-up-ntfn-ttl: 0\r\n";
    $head .= "Content-Location: ".$msg_page."\r\n";
    $head .= "\r\n";

    $send = $head.$page;

    fwrite($fp, $send);

    fclose($fp);
}

}

[misson]

If you're on a free server, port 4445 should be blocked by the firewall; that your script worked before was an oversight. The paid servers have different rules and have more open ports, but still block all but a few commonly used ones. With a VPS account, you can have any port you wish open.

[froger]

that your script worked before was an oversight.

Meaning? My script was working 6 days ago without a problem. I was capable of sending my phone and many of my users net alerts. Did the rules just change for that port or something?

[misson]

Meaning that the port shouldn't have been open. If it was, it was a mistake. The policy hasn't changed, though the erroneous rules may have been.