29 May

Welcome Facebook (AS32934) to India!

Today I was having a chat with my friend Hari Haran. He mentioned that Facebook has started its PoP in Mumbai. This seems true and Facebook has mentioned GPX Mumbai as their private peering PoP in their peeringdb record.


I triggered a quick test trace to “www.facebook.com” on IPv4 from all Indian RIPE Atlas probes and resolved “www.facebook.com” on the probe itself. The lowest latency is from Airtel Karnataka and that’s still hitting Facebook in Singapore. I do not see any of networks with probe coverage hitting Facebook node locally.



Except for a few a lot just seem to be hitting Singapore. Thus clearly there’s a huge scope of peering.


Full measurement results here: https://atlas.ripe.net/measurements/8777252/#!general


If you are an ISP in India, you can start peering with Facebook right away!

22 Dec

DNS hack of Google, Facebook & more sites in .bd

Yesterday Google’s Bangladeshi¬†website google.com.bd was hacked and this happened via DNS. It was reported on the bdNOG mailing list at morning in a thread started by Mr Omar Ali where he shared this screenshot:



This clearly shows how authoritative DNS for “com.bd.” (which is same as bd. btw) was poisoned and was reflecting attackers authoritative DNS. Later Mr Farhad Ahmed posted a screenshot of google.com.bd showing hackers page:



Later Mr Sumon Ahmed mentioned that it happened because web frontend of .bd was compromised. This was an interesting hijack as attacker attacked the key infrastructure of the registry instead of Google or Facebook servers. It’s also a warm reminder of the way DNS depends on the hierarchal structure by design and at this stage, we need to focus on DNSSEC to add on the security to the current system.


Lately .bd domain faced issues multiple time this year. I hope it will have a good stable time in the upcoming year. In terms of stability it is being backed by PCH’s anycast infrastructure but PCH’s DNS servers are just published in NS records of it’s existing auth servers, but not on the parent zone (which is root zone). Thus the point of failure remains and is yet to be fixed.