I’ve just read about the Cloudflare resolver at IP 188.8.131.52
It says: “We can also support immediate updates, without having to wait for TTLs to expire.”
Now I’ve tried this with my load balanced records:
- I disabled one of my load balancer pools.
- Then I performed: nslookup LBrecord.example.com 184.108.40.206
I noticed that the address for this record wouldn’t change immediately.
It took about 30 seconds to get the new address (the TTL for this record is 30 seconds).
I then tried the same thing with a normal A record. I set the TTL to one hour and changed the address.
Even after 30 minutes the old address was still reported…
It appears that the immediate updates (before the TTL expires) do not work correctly.
When can we expect the immediate update functionality to be implemented?