How to flush/clear dns cache?
matthew at FreeBSD.org
Wed Jun 15 16:35:23 UTC 2016
On 06/15/16 17:14, Bobb Shires wrote:
> What is the FreeBSD equivalent of the windows command ‘ipconfig /flushdns’?
If you're running the local_unbound service[*], then you can achieve a
similar effect by:
# service local_unbound restart
Otherwise: nothing. Unless you run some additional software specifically
for this purpose, FreeBSD doesn't keep a local cache of DNS lookups, so
there's nothing to do.
Unless you want to start chasing the operators of the recursive
resolvers you're using and ask them to flush their caches. (Hint: the
answer will be 'no' unless you can show a good reason, like their caches
having been poisoned or old data affecting a service that a lot of
[*] local_unbound is what is commonly used as it comes with the system
but there's a number of alternatives you could use from ports.
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