DDNS + no-ip.com

What I am trying to achieve: I own a registered domain (rindbach.org) from no-ip.com I am using it for a self hosted jitsi-meet server.
I want my personal hostname updated via luci ddns but it fails (see below snippet). I know it is working with No-IP hostnames flawlessly but with my personal hostname it always spits out an error.

sending dummy IP to 'no-ip.com'
 123012       : #> /usr/bin/wget-ssl --hsts-file=/tmp/.wget-hsts -nv -t 1 -O /var/run/ddns/jitsi.dat -o /var/run/ddns/jitsi.err --ca-directory=/etc/ssl/certs --no-proxy 'https://merkwuedigst:***PW***@dynupdate.no-ip.com/nic/update?hostname=owbach.org&myip=127.0.0.1'
 123013       : 'no-ip.com' answered:
nochg 178.111.94.147
 123014       : sending real IP to 'no-ip.com'
 123014       : #> /usr/bin/wget-ssl --hsts-file=/tmp/.wget-hsts -nv -t 1 -O /var/run/ddns/jitsi.dat -o /var/run/ddns/jitsi.err --ca-directory=/etc/ssl/certs --no-proxy 'https://merkwuedigst:***PW***@dynupdate.no-ip.com/nic/update?hostname=owbach.org&myip=178.111.94.147'
 123016       : 'no-ip.com' answered:
nohost
 123016 ERROR : IP update not accepted by DDNS Provider
 123016       : Waiting 600 seconds (Check Interval)

Any ideas much appreciated.

https://openwrt.org/docs/guide-user/services/ddns/client#noipcom

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Are you sure?

https://who.is/whois/rindbach.org suggests otherwise. The TLD registrar for .org - https://thenew.org/get/find-my-org/whois/?domain=rindbach.org - appears to agree.

Your code snippets include a different domain - owbach.org - but that also appears not to be registered to anyone.

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Thank you, of course I checked docs first, I am aware of it. I have one ddns-net ip and a personal hostname. Updates work just fine with ddns-net, but my personal hostname is not updating.
Logfile always throws: ERROR : IP update not accepted by DDNS Provider.
Maybe script is only working for ddns-net addresses?

You are right. I anonymized my personal hostname.

Is No-IP.com the nameserver provider for your domain?

If No-IP.com isn't providing nameserver duties for your domain, that could be one possible explanation of the problem.

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I bought the domain from No-ip.com.
What would be a nameserver duty for my domain?

Then I would suggest asking approaching no-ip.com for support. Since you're a paying customer, there ought to be some support available.

Every domain needs a nameserver. At least one, often more (for resiliency). It's used to tell the world what IP addresses are in use at your domain and by which hostnames and services. Think of it like an equivalent of a telephone directory.

In your case, since you paid no-ip.com for your domain, no-ip.com should have supplied you with some documentation which explains a) what a nameserver is, and b) if they're providing that service for you or if you need to approach a third-party for it.

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Thank you very much, that is really helpful. I already asked no-ip customer support. But they told me I have to upgrade. I don't think so.
I realized I have to set a nameserver. No-ip does not do it for me. I am such a noob.

I've just looked at no-ip.com's services (I'm not a customer) and I see your issue. They want thirty bucks a year for the service tier which includes that feature.

Apparently NameCheap offers dynamic DNS for third-party domains, for free: https://www.namecheap.com/support/knowledgebase/article.aspx/595/11/how-do-i-enable-dynamic-dns-for-a-domain/

https://www.namecheap.com/domains/freedns/

I can't comment about NameCheap as I've never used its services, but it was one of the first results when I searched for https://www.google.com/search?client=firefox-b-d&q=ddns+with+your+own+domain

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Also HE.net (and you can also set it up to update the endpoint of an IPv6 tunnel too!).

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