rndc flushname not working

[Chris Buxton]

On Apr 9, 2015, at 4:25 PM, Frank Even <lists+isc.org at elitists.org> wrote:
> 
> Is there any place I can look to get a definitive answer in what cases
> "flushname" will and will not work?  I've been digging around in lists
> and docs and can't seem to find any definitive answers.  I've been
> having odd troubles clearing a name from a cache and after even
> clearing the name and the name that the name servers was attached to,
> still had to flush the entire cache to get resolution working properly
> on that domain again.

'rndc flushname' will clear a single name (all records, all types) out of the normal recursion cache. However, as noted by Mark last December, if an authoritative server for the domain is returning bad answers, the bad answer might come back on the next query for that rrset or that name.

If you want to clear an entire domain out of cache (example.com and all of its child names), use 'rndc flushtree' instead.

Regards,
Chris