Aditya's Tech Corner

Aditya Krishnakumar

Aditya Krishnakumar

This blog is maintained and written by Aditya Krishnakumar, an engineer from India. He is a DevOps Engineer by profession and is enthusiastic about DevOps, Security & Software Development.

Use Pi-Hole to block ads for yourself & others in your network

Jun 11, 20238 min read

How to have a DNS-based sinkhole for the ads (and other kinds of websites) without having to install any additional software in your laptop/computer. ·...

Use Pi-Hole to block ads for yourself & others in your network

Fix RootFS related errors in your failed EC2 Linux instance

Mar 19, 20233 min read

Fix your root file system issues for your failed EC2 instance, in case it is not booting after a maintenance window reboot. · TLDR; If you face the...

Fix RootFS related errors in your failed EC2 Linux instance

Setup paid SSL Certificates for your NGINX installation

Mar 18, 20237 min read

TLDR; To generate the certs, create a CSR file with the following: openssl genrsa -out domain.com.key 2048 openssl req -new -sha256 -key...

Setup paid SSL Certificates for your NGINX installation

Writing effective service files in Linux for your Application

Mar 11, 20236 min read

How to write effective Linux service files such that you can get rid of hacky ways to run your application in a Linux server · TLDR; If you would like to...

Writing effective service files in Linux for your Application

Keyless GitHub Actions Authentication to AWS

Feb 16, 20236 min read

Perform keyless authentication and authorisation to AWS services, without having to manage separate access keys. · Motivation Whenever we're configuring...

Keyless GitHub Actions Authentication to AWS