I just spooled up a server with our datacenter provider. I logged into the server via ssh, everything fine.
Went to add a CNAME record in Cloudflare and to my surprise got the following message:
DNS Validation Error (Code: 1004) Content for CNAME record is invalid.
In my case, I’m 99.9% sure that the reason for this message is because the IP address that our server got ends in .0. e.g.
This is a valid IP address and it’s not referencing the broadcast domain in this case. It’s real. It works. You can connect to it, but Cloudflare can’t add a record for it.