Feature request: "Watch only" or "pseudo" DNS updater #498

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saavagebueno · 2025-11-20T04:24:34-05:00

saavagebueno commented

2025-11-20 04:24:34 -05:00

Originally created by @kankaristo on GitHub (Feb 20, 2025).

What's the feature?

Add a "watch only" or "pseudo" DNS updater, which would only do DNS requests and watch for IP changes, but not actually update the DNS records.

Extra information?

I have a few different computers that use dynamic DNS. Only my "main" server runs DDNS Updater, the others only use simple cron jobs (curl on the update URL on FreeDNS periodically).

DDNS Updater is really nice, but I don't want to run it on all of those computers (I don't need the web UI on the other hosts, the cron jobs work well enough). But it would be really nice to have a "central place" where I could see the IP addresses, last update times, etc.

So, it would be nice to have a "pseudo" DNS updater, which would do only do DNS queries but no actual DNS updates. So, the web UI would list the domain, IP, last update time and previous IPs, but there would be no DNS updates (the IP is meant to point to a different IP than the current one).

I tried searching for a feature request but didn't find anything. Maybe this is outside of the scope of the project, but I thought I would ask anyway.

Originally created by @kankaristo on GitHub (Feb 20, 2025). 1. What's the feature? Add a "watch only" or "pseudo" DNS updater, which would only do DNS requests and watch for IP changes, but not actually update the DNS records. 2. Extra information? I have a few different computers that use dynamic DNS. Only my "main" server runs DDNS Updater, the others only use simple cron jobs (`curl` on the update URL on FreeDNS periodically). DDNS Updater is really nice, but I don't want to run it on all of those computers (I don't need the web UI on the other hosts, the cron jobs work well enough). But it would be really nice to have a "central place" where I could see the IP addresses, last update times, etc. So, it would be nice to have a "pseudo" DNS updater, which would do only do DNS *queries* but no actual DNS *updates*. So, the web UI would list the domain, IP, last update time and previous IPs, but there would be no DNS updates (the IP is *meant to* point to a different IP than the current one). I tried searching for a feature request but didn't find anything. Maybe this is outside of the scope of the project, but I thought I would ask anyway.

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Reference: starred/ddns-updater#498