intermittent SERVFAIL for high visible domains such as *.google.com
dot at dotat.at
Mon Jan 22 16:10:40 UTC 2018
Brian J. Murrell <brian at interlinx.bc.ca> wrote:
> Yeah. Must be disabled by default on EL7 I would guess, just because
> it's so noisy.
You should make sure it is enabled, because there are vital clues in those
log lines :-) Other categories you should check are `edns-disabled` (which
I already mentioned) and `resolver`.
> So, if lame servers were a problem with resolving ns[1-4].google.com,
> then I would see messages like in my previous message with a lame:n tag
> where n > 0, yes?
Yes, and you should track down when they occur and look for other error
indications areound that time.
f.anthony.n.finch <dot at dotat.at> http://dotat.at/ - I xn--zr8h punycode
Bailey, Fair Isle, Faeroes: Cyclonic, becoming south or southwest, 5 to 7,
increasing gale 8 at times. Rough or very rough, occasionally high at first.
Occasional rain or showers, squally later in Bailey. Good, occasionally poor.
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