Re: facebook outage

[Niels Bakker <niels=nanog () bakker net>]

* jllee9753 () gmail com (John Lee) [Tue 05 Oct 2021, 01:06 CEST]:
> I was seeing NXDOMAIN errors, so I wonder if they had a DNS outage 
> of some sort??

Were you using host(1)? Please don't, and use dig(1) instead. There 
were as far as I know at no point NXDOMAINs being returned, but due to 
the SERVFAILs host(1) was silently appending your local search domain 
to your query which would lead to incorrect NXDOMAIN output.


        -- Niels.