[CentOS] how to increase DNS reliability?

Thu Jul 25 12:53:48 UTC 2019
rainer at ultra-secure.de <rainer at ultra-secure.de>

Am 2019-07-25 14:51, schrieb hw:
> Hi,
> how can DNS reliability, as experienced by clients on the LAN who are
> sending queries, be increased?
> Would I have to set up some sort of cluster consisting of several
> servers all providing DNS services which is reachable under a single
> IP address known to the clients?
> Just setting up several name servers and making them known to the 
> clients
> for the clients to automatically switch isn't a good solution because
> the clients take their timeouts and users lacking even the most basic
> knowledge inevitably panic when the first name server does not answer
> queries.

Run a local cache (unbound) and enter all your local resolvers as