[dns-operations] potential future same-quad open resolvers - 25.25.25.25 and 25.26.27.28

[Roy Arends]

https://www.ncsc.gov.uk/information/uk-public-sector-dns-service

Warmly,

Roy

> On 7 Nov 2018, at 14:21, Royce Williams <royce at techsolvency.com> wrote:
> 
> Does anyone know of any UK plans to stand up open resolvers? I found a hint of that this morning.
> 
> I stumbled on it after learning that Amazon now controls the entirety 3/8 (actually two /9s, acquired at different times). Back when Quad9 came out, on a whim I surveyed all same-quad IPs, and 3.3.3.3 seemed like a natural add. So on the Amazon news, I refreshed the survey:
> 
> https://gist.github.com/roycewilliams/6cb91ed94b88730321ca3076006229f1
> 
> ... which is when I noticed this PTR:
> 
> 25.25.25.25.in-addr.arpa domain name pointer a1.pdns.publicsectordns.gov.uk.
> 
> ... and its sibling:
> 
> 28.27.26.25.in-addr.arpa domain name pointer a2.pdns.publicsectordns.gov.uk.
> 
> 25.25.25.0/24 and 25.26.27.0/24 are now separate /24 in UK Ministry of Defence space. They were previously part of larger, publicly undifferentiated blocks.
> 
> Royce
> 
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