localhost name lookup

Petr Špaček pspacek at isc.org
Tue Jan 14 14:05:38 UTC 2025


On 14. 01. 25 12:56, Robert Wagner wrote:
> I wanted to better understand the use-case of having a DNS server 
> provide localhost lookup.

TL;DR Mistakes are being made.

It does not serve 'legitimate' purpose by itself, it just lowers cost of 
leaked nonsense queries.

I guess it applies to most (all?) special-use names: The local 
authoritative zone is to defined to cut down the nonsense traffic which 
is leaking to the network. In the ideal world none of this would be 
necessary.

Hope it helps.

-- 
Petr Špaček
Internet Systems Consortium


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