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<head>
<title>Javascript Redirector for RFID / NFC / nTAG</title>
<meta name="robots" content="noindex,nofollow">
<meta charset="utf-8">
<script type="text/JavaScript">
const ntag_list = [
"/s/articles/2021/09/21/vpp-linux-cp-part7/",
"/s/articles/2021/12/23/vpp-linux-cp-virtual-machine-playground/",
"/s/articles/2022/01/12/case-study-virtual-leased-line-vll-in-vpp/",
"/s/articles/2022/02/14/case-study-vlan-gymnastics-with-vpp/",
"/s/articles/2022/03/27/vpp-configuration-part1/",
"/s/articles/2022/10/14/vpp-lab-setup/",
"/s/articles/2023/03/11/case-study-centec-mpls-core/",
"/s/articles/2023/04/09/vpp-monitoring/",
"/s/articles/2023/05/28/vpp-mpls-part-4/",
"/s/articles/2023/11/11/debian-on-mellanox-sn2700-32x100g/",
"/s/articles/2023/12/17/debian-on-ipngs-vpp-routers/",
"/s/articles/2024/01/27/vpp-python-api/",
"/s/articles/2024/02/10/vpp-on-freebsd-part-1/",
"/s/articles/2024/03/06/vpp-with-babel-part-1/",
"/s/articles/2024/04/06/vpp-with-loopback-only-ospfv3-part-1/",
"/s/articles/2024/04/27/freeix-remote/"
];
var redir_url = "https://ipng.ch/";
var key = window.location.hash.slice(1);
if (key.startsWith("ntag")) {
let week = Math.round(new Date().getTime() / 1000 / (7*24*3400));
let num = parseInt(key.slice(-2));
let idx = (num + week) % ntag_list.length;
console.log("(ntag " + num + " + week number " + week + ") % " + ntag_list.length + " = " + idx);
redir_url = ntag_list[idx];
}
console.log("Redirecting to " + redir_url + " - off you go!");
window.location = redir_url;
</script>
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<pre>
Usage: https://ipng.ch/app/go/#<key>
Example: <a href="/app/go/#ntag00">#ntag00</a>
Also, this page requires javascript.
Love,
IPng Networks.
</pre>
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