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Facebook cache FNA updates - July 2022

Anurag Bhatia
As returning readers of this blog would be aware - I found a trick to find Facebook caching servers around the world during the APRICOT 2018 hackathon. Since then I am running my code again every year to see the changes and publish this report. Previous reports March 2018 here Nov 2019 here April 2021 here Facebook knows! Back in 2019, I was in San Francisco, California for NANOG 75. While roaming around in the lobby, someone read the NANOG card hanging around my neck and greeted me.

Algorithm to detect a transit free network

Anurag Bhatia
In a recent Network AF podcast Avi Freedman (Kentik) joked with the guest about how he finds who is transit free / tier 1 network. He said, “I ask everyone who they think is a tier 1 network. Everyone includes their own name + other names”. Next, he ignores the self-nomination & looks at the common list to find who actually is a tier 1 network. This is funny, intuitive and gives some clue.

New VPN & datacenter connection logging rules

Anurag Bhatia
CERT-IN i.e Computer Emergency Response Team, India issued new guidelines on 28th April. Guidelines essentially ask those VPN providers to keep a log of customer details, their IP addresses, emails, phone numbers etc and maintain that log for at least 5 years. The detailed notification is here. This not only extends to VPN players but also to datacenters, VPS, cloud service providers etc. I can understand the problem they are trying to solve as most criminal activities are hidden behind VPN players and investigating agencies just hit a dead end as they see the WAN IP of a VPN player.

Doomsday and working of the internet

Anurag Bhatia
In the early phase of Russia - Ukraine war, Ukraine made a strange request to ICANN. They asked ICANN to remove .ru (Russian ccTLD) from the root DNS servers, revoke SSL certs for .ru and shut down root DNS servers hosted in Russia. Here are the three requests they made: Complete letter is here (and original source is here). This is going to be one of few notable cases where critical internet infrastructure is being weaponised.

GGN Summit | Bangalore | IPv6 transitioning & more!

Anurag Bhatia
I am in Bangalore for two days. While there are many things packed into these two days short schedule, one of the most exciting ones is Google Global Network India Innovation Summit. While Google has presented across various events in past talking about their AS15169 backbone, this is the first summit where they are covering it in detail and that too with the Indian context! Must say that I find AS15169 quite fascinating on the BGP side of things.