On 14 February 2014 13:52, houguanghua <houguanghua at hotmail.com> wrote: > Who can tell me how to do?Thanks. You can't and shouldn't need to edit the cache. All you can do is clear it. If you want to change the response back to the client then look into RPZ, however by doing so you may break DNSSEC validation and end up not returning a response at all. Steve