A simple graph I made using spreadsheet to compare call rate in per second vs per minute. There was a similar graph somewhere around, but I lost the link and hence I made my own graph :P 1.5 paisa/second and 45p/minute are common rates in per second and per minute [...]

Recently I moved from Apache to Nginx on one of my servers due to increase in traffic. But I was using HTTP Basic authentication with group based authorization on Apache in this manner: However, there’s no AuthGroupFile  in nginx. But LUA, a programming language is supported in nginx. So here’s [...]

An insight into a networking problem thrt I faced seven years ago wrt unable to use Internet on Linux after learning networking and Linux over the years.

I use dynamic DNS for my home internet connection so that I can access the machines from anywhere on the internet. And I use OpenWRT on my router. Earlier I was using Namecheap for managing DNS but I switched to CloudFlare for performance and security reasons of the website. Unfortunately [...]

Recently I discovered something called Proxy ARP. I had seen this earlier in sysctl options but never understood it and why would someone need it, until one day I worked in a networking setup which used this to route traffic from the machine to the Internet. It’s an interesting technique [...]