When deploying Dynamic DNS using Cloudflare in v0.74.3 I noticed an error and on investigation found that the default lookup IP Velociraptor used has moved.
Running frontend in verbose mode:
[ERROR] 2025-06-18T00:13:23Z DynDns: Unable to set dns: Content for A record must be a valid IPv4 address.
Manually testing the old lookup URL:
curl https://domains.google.com/checkip
<HTML><HEAD><meta http-equiv="content-type" content="text/html;charset=utf-8">
<TITLE>301 Moved</TITLE></HEAD><BODY>
<H1>301 Moved</H1>
The document has moved
<A HREF="https://domains.google/">here</A>.
</BODY></HTML>
We can configure the lookup URL manually by adding The
checkip_url: https://wtfismyip.com/text entry into the server configuration.
Cloudflare configuration instructions: https://docs.velociraptor.app/blog/2024/2024-03-10-release-notes-0.72/#dynamic-dns-providers
In the example below I am configuring a host name: hostname.example.com
dyn_dns:
type: cloudflare
api_token: <API_KEY>
zone_name: example.com
checkip_url: https://wtfismyip.com/text