[CentOS] how to increase DNS reliability?

Thu Jul 25 20:13:48 UTC 2019
hw <hw at gc-24.de>

On 7/25/19 7:58 PM, Paul Heinlein wrote:
> On Thu, 25 Jul 2019, hw wrote:
>> On 7/25/19 3:28 PM, Leroy Tennison wrote:
>>> If you don't want multiple DNS server entries on the client
>> I'm ok with them, only the problem is that the clients take their 
>> timeouts
>> when a server is unreachable, and users panic.
> On Linux systems, you can set the timeout in /etc/resolv.conf, e.g.,
> # I think the default nameserver timeout is 5; use rotate
> # option if you prefer round-robin queries rather than
> # always using the first-listed first
> nameserver timeout:2 rotate
> nameserver timeout:2 rotate
> I'll admit that I'm not sure if those options are configurable on Mac
> and/or Windows workstations.

It was those showing problems.

Only 5 seconds isn't long enough that I would expect any problems.  What 
do I need to put into the ifcf files or tell nmcli to set these options?