On Wed, Jan 04, 2017 at 10:00:29PM +0000, Rainer Weikusat wrote:
>
> I'm running a caching resolver locally because that "always works"
> (unless blocked by the ISP which may become mandatory in the UK 'soon'
> ...), even if an out-of-the-ordinary cache flush is called for because
> of a 'recent' DNS information change.

Which brings us around full circle to the original question -- how to
do a cache flush!

-- hendrik