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<p>Or you could put a hash in a TXT record as a key and query for
that just like ACME and Google do and use that for verification.<br>
</p>
<p>e.g. here is an one from an old inactive server of mine...</p>
<p><font face="monospace"><font size="1">[timt@timzpc 18:04 ~]$dig
-t txt _acme-challenge.monitor.skybase.net<br>
<br>
; <<>> DiG 9.18.30-0ubuntu0.24.04.2-Ubuntu
<<>> -t txt _acme-challenge.monitor.skybase.net<br>
;; global options: +cmd<br>
;; Got answer:<br>
;; ->>HEADER<<- opcode: QUERY, status: NOERROR,
id: 4319<br>
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0,
ADDITIONAL: 1<br>
<br>
;; OPT PSEUDOSECTION:<br>
; EDNS: version: 0, flags:; udp: 65494<br>
;; QUESTION SECTION:<br>
;_acme-challenge.monitor.skybase.net. IN TXT<br>
<br>
;; ANSWER SECTION:<br>
_acme-challenge.monitor.skybase.net. 5 IN TXT
"3AdPIb2NZCUY7tcPGzc67ZrdvF-OCSdDGHkH0hCTSog"<br>
<br>
;; Query time: 27 msec<br>
;; SERVER: 127.0.0.53#53(127.0.0.53) (UDP)<br>
;; WHEN: Wed Mar 12 18:05:01 AEDT 2025<br>
;; MSG SIZE rcvd: 120<br>
<br>
[timt@timzpc 18:05 ~]$</font><br>
</font></p>
<p>cheers</p>
<p>Tim<br>
</p>
<div class="moz-cite-prefix">On 12/3/25 12:19, Rudy Bakalov via
Dxspider-support wrote:<br>
</div>
<blockquote type="cite"
cite="mid:29A4FD66-19F0-4BE6-9425-403E6985F309@yahoo.com">
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<div dir="ltr">
<meta http-equiv="content-type"
content="text/html; charset=UTF-8">
1/ Cluster A has defined SSID N2WQ-1 with FQDN cluster.n2wq.com
as partner
<div>2/ Cluster A receives a telnet connection request and the
other party claims it is N2WQ-1</div>
<div>3/ Cluster A resolves the FQDN for N2WQ-1 to IP</div>
<div>4/ If the connection request from whoever claims to be
N2WQ-1 originates from the resolved FQDN, the connection is
accepted and partner handshake sequence begins</div>
<div>5/ Otherwise Cluster A drops the connection.</div>
<div><br>
</div>
<div>The FQDN acts like a shared key. It doesn’t need to be
secret. Simple and elegant.</div>
<br>
</div>
</blockquote>
<pre class="moz-signature" cols="72">--
VK2XAX : QF68KM : ITU59 : CQ30 : ORARC : WIA</pre>
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