On 13 October 2018 I had given a talk about Devops – The art of managing infrastructure at scale at a Cofee and Code event held at 91Springboard, Goa. In the talk I spoke about managing infrastructure from different perspectives – developer, Linux sysadmin, network admin and leveraging open source tools to do so. I… Read More »
Just wanted to share a few updates about blog and life. TLS 1.3 with 0-RTT TLS 1.3 is a new standard of encryption on the web and I have implemented it! This should result in faster load times and improved security for the users. ECDSA certs are enabled too, along with RSA for better performance.… Read More »
A friend recently asked me: I would like to know how to build a global CDN network. I’m currently exploring all the CDN options on the market, but would like to know how to build one since it looks like an interesting problem to solve. A Content Delivery Network(CDN) is nothing but a service which… Read More »
Virtually every address on the internet is connected with each other with a protocol called as the Border Gateway Protocol(BGP), which dynamically routes traffic on the internet to the closest network. This guide will show you how you can be part of the internet for the cheapest possible cost. This guide is intended for sysadmins… Read More »
I had a problem up my sleeve. I had to find a way to wish people on festivals on their birthdays on the most popular messaging platform WhatsApp. On the weekend I managed to write something for this. Firstly I would like to apologise for accidentally spamming my entire contacts box during testing. I had… Read More »
It gives me great pleasure to inform you that I will be joining Award Force, an SAAS startup based out of Australia but with a fully remote workforce. The company provides an industry leading award management solution. I will no longer be employed by E2E Networks Limited. The new role will be fully remote and… Read More »
Before proceeding I want to make it absolutely clear that these are my personal views only and nothing to do with my employer or their views. National Internet Exchange of India(NIXI) is an internet exchange in India, infact one of the few in the country and is fully government owned non-profit entity initially established to… Read More »
I had multiple networks scattered around different places and needed a way to link all of them together. They were as follows: Work related VPNs. There were multiple VPNs to access different parts of the internal networks. Handling multiple VPN files was very cumbersome. For convinience let’s assume we have a single network here –… Read More »
Everyone’s favorite SSL certificate authority Let’s Encrypt recently announced support for wildcard SSL certificates on their forum here using the ACMEv2 API. Wildcard SSL certificates still cost as much as $150-300/yr on the market. Getting them for free is a huge bonus. Install Certbot Grab the Certbot tool for issuing Let’s Encrypt signed SSL certificates.… Read More »
One of the reasons why people run BGP is when reliability is of utmost importance and sessions terminating abruptly can simply be not afforded, especially in cases like VOIP. However this is an expensive proposition both cost and skill wise. There may be a middle ground between this and simple failover with multiple uplinks. That… Read More »