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Their website was loading just fine for us and they ensured us they hadn’t made any recent changes.
Upon inspecting their site with Chrome Devtools we could see that everything from their CDN subdomain (cdn.domain.com) were not loading correctly and reporting 404 errors.
If you’re still having issues with an IP or domain resolving, you can also try clearing Chrome’s DNS cache, which is different than the local DNS cache.
One change compared to the IPA code would be that IPA only sends the refresh when the addresses change, to avoid unnecessary zone transfers on the IPA server.While DNS scavenging is not enabled on Active Directory servers by default, the SSSD should support this use case and refresh its DNS records to simulate the behavior of Windows AD clients and keep their address records from being removed if scavenging is used.The SSSD should also enable the clients to update their DNS records if their IP address changes.To be able to detect if the resource record is stale, every dynamically created RR in the Windows DNS has a timestamp that is updated with the dynamic update if scavenging is enabled.Manually created DNS records do not have a timestamp.