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Tag: OpenDNS

ISP Column

Tata – Airtel domestic peering IRR filtering and OpenDNS latency!

April 5, 2019 Anurag Bhatia6 Comments on Tata – Airtel domestic peering IRR filtering and OpenDNS latency!

Last month I noticed quite high latency with Cisco’s OpenDNS from my home fibre connection. The provider at home is IAXN (AS134316) which is peering with content folks in Delhi besides transit from Airtel. This is bit on the higher…

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ISP Column

Encrypted DNS using DNSCrypt

March 1, 2018 Anurag Bhatia4 Comments on Encrypted DNS using DNSCrypt

Writing this post from my hotel room in Kathmandu. I found that many of the servers appear to be DNS resolvers which is unusual. E.g: dig @anuragbhatia.com . ns +short a.root-servers.net. b.root-servers.net. c.root-servers.net. d.root-servers.net. e.root-servers.net. f.root-servers.net. g.root-servers.net. h.root-servers.net. i.root-servers.net. j.root-servers.net.…

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Networking

Akamai CDN and DNS resolution analysis

October 28, 2012 Anurag Bhatia6 Comments on Akamai CDN and DNS resolution analysis

These days Open DNS resolvers are getting quite popular. With Open DNS resolver I mean resolvers including OpenDNS as well as Google Public DNS. One of major issues these resolvers suffer is failure of integration with CDN providers like Akamai,…

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Networking

openDNS performing better in India now!

September 26, 2011 Anurag Bhatia1 Comment on openDNS performing better in India now!

Hello everyone!   Seems like Tata Communications routing table is changed (call it fixed) to route traffic for openDNS to Singapore. It’s not going to London anymore and I see very good latency from BSNL too (which uses Tata Comm…

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