Understanding three phase power

Anurag Bhatia
Migration to Hugo I have migrated this 14-year-old blog from a dynamic WordPress (based on WordPress) to a static website (based on Hugo). It was a pretty lengthy process even when I had scripts converting the WordPress XML export into markdown files. Why a static site? This gives a few advantages like: Must faster rendering as all the pages are generated well in advance & pushed to the server Better security (as the backend is not at all exposed unlike WordPress where backend admin portal was visible & behind an authenticated URL) Easy to distribute and put behind CDN Easy to type posts as now it’s just markdown I haven’t finalised the hosting location for this newer site.

IX management via Gitlab CI!

Anurag Bhatia
I was having this discussion with someone recently on possible software to manage an IXP. Lately, IXP Manager has become the de-facto choice for managing IX. It’s a good tool. Nick and INEX team has built a fantastic open-source tool. But I still feel it’s a bit overloaded for a small 1-2 DC IX operation. If I have to set up a small to mid-size IX, I would rather do that with arouteserver instead of IXP Manager as I did in case of BharatIX in Mumbai (until it shutdown!

Workshop on Network Automation 101

Anurag Bhatia
Next week SANOG (South Asia Network Operator Group) event will start in Kathmandu, Nepal. I will be instructing on a 4-day workshop on Network Automation with two fellow instructors. The idea of this workshop is to make fellow Ops / Network engineers familiar with concepts of Docker, Ansible, and Gitlab CI/CD pipeline and ultimately to make use of REST APIs to bind these all together. This is the first time I am doing such a workshop and the content here is built from scratch.

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.