[dns-operations] new public DNS service: 184.108.40.206
noel.butler at ausics.net
Mon Nov 20 12:28:42 UTC 2017
On 20/11/2017 22:08, Damian Menscher wrote:
> On Mon, Nov 20, 2017 at 3:47 AM, Florian Weimer <fweimer at redhat.com> wrote:
> On 11/18/2017 09:11 AM, Damian Menscher wrote:
> Your argument that you don't trust the ISPs between you and
> Google/OpenDNS/Quad9, and therefore run your own local recursive resolver,
> confuses me. After all, your local recursive needs to query third-party
> authoritative servers anyway.
> To convince yourself, answer these two questions:
> - How many ISPs are between you and 220.127.116.11? I'm on Comcast, and they
> have direct peering with Google, so the number is zero. 18.104.22.168 is increasingly seen as an anycast service address for DNS unrelated to Google, similar to how you download the SSH keys for root login from 169.254.169.254 or instance-data. I expect that many ISPs route 22.214.171.124 to their own servers.
Unlike 169.254/16 which is defined by RFC to be link-local, 126.96.36.199/24
 has been allocated to Google.
If you identify instances of BGP hijacking please report either
privately to the victim (Google in your example) or publicly to the
nanog mailing list, so corrective action can be taken.
ISP's I've been with in times gone by have often "hijacked" open DNS
resolvers, to ensure their users get best experience by using their own
DNS servers. not a thing likes of google etc, can do about it. for
instance, with the new laws in Australia, you'll find plenty localising
googles and opendns's resolvers ip's to enforce and satisfy court
directions from copyright orders
also allows them to use RPZ's to stop their users from going to phishing
sites and so on, most users wouldnt know the difference, nor care.
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