Lmst

This one is a pretty long read, and it goes into details of observed #NXDOMAIN patterns with a bias towards the #DNS landscape in #China. I did not expect to see so much leakage of non-public TLDs, but I guess that - despite the bias towards Chinese networks- it probably looks similar in other parts of the world.

After reading this pretty long article, I was still somewhat feeling that it should have gone deeper into query flood phenomena which might cause spikes in NXDOMAIN responses.

No matter what, a well-spent 10 minutes on educating yourself on things that are often not illuminated on one of the #Internet core protocols.

Have a nice weekend, everyone!

#rootservers #infosec

Amongst all root servers instances in India, seems like F-Root server by @iscdotorg has most locations, in total 15 locations. All major cities are covered.

See https://root-servers.org/ (scroll down and click F) to see locations.

#RootServers

M Root Server live in NIXI Mumbai now - https://m.root-servers.org/. A local site though.

#RootServers #DNS

I was poking about the root servers web pages a few days ago and this explains why I couldn't reach Cogent's C root server and why other root servers had a sudden spike in traffic.

https://arstechnica.com/security/2024/05/dns-glitch-that-threatened-internet-stability-fixed-cause-remains-unclear/

#internet #rootservers #cogent

Ever wondered why 13 is such an oddly specific number for #DNS #rootservers? Turns out that you could at most cram 13 domain names and their corresponding #IPv4 addresses in a non-truncated #UDP response. As soon as DNS truncates, the resolver falls back to #TCP. To avoid this additional performance impact and stress to the servers, the number is limited to 13.

https://blog.apnic.net/2017/02/15/the-root-of-the-dns/

#Internet #criticalinfrastructure #dnsrootserver