Because changes are seen immediately, you might be seeing another DNS cache in your application. Firefox has a DNS cache with a TTL of around 60 seconds, I believe: I usually just restart firefox if I've made a change and can't wait a minute.
Because changes are seen immediately, you might be seeing another DNS cache in your application. Firefox has a DNS cache with a TTL of around 60 seconds, I believe: I usually just restart firefox if I've made a change and can't wait a minute.