INTL 3:770/1 3:770/3
REPLYADDR steveo@eircom.net
REPLYTO 3:770/3.0 UUCP
MSGID: <20240210071427.8db358d34ed2a05f4f37d878@eircom.net> f04dfe59
REPLY: e0c0f024
PID: SoupGate-Win32 v1.05
On Fri, 9 Feb 2024 20:41:11 -0500
"68g.1503" <68g.1504@exr3.net> wrote:
> Wget and the daemons for dynDNS and friends are very
> different things BTW.
No they are not - every dynamic dns service I know of updates in
essentially the same way, you make an http(s) request with the domain, an
authentication key and optionally the IP address (otherwise it uses the
source). Usually curl or wget is used to make the request, it is good
practice to minimise the requests by checking for IP changes but not
necessary. My ddns daemon looks like this:
#!/bin/sh
old_external=''
while true
do
external_ip=`fetch -q -o - http://ifconfig.me/ip`
if [ "$external_ip" -a "$old_external" != "$external_ip" ]
then
curl -s -4 "https://:@dyn.dns.he.net/nic/update?hostname="
fi
sleep 30
done
--
Steve O'Hara-Smith
Odds and Ends at http://www.sohara.org/
For forms of government let fools contest
Whate're is best administered is best - Alexander Pope
--- SoupGate-Win32 v1.05
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