Bjørn Mork wrote:
Removing all DNS servers at the same time is never a good idea, even in the situation where you believe they are all failing.
As I wrote: : That facebook use very short expiration period for zone : data is a separate issue. that is a separate issue. > This is a very hard problem to solve. If that is their policy, it is just a policy to enforce and not a problem to solve. Masataka Ohta