Author Archives: Ajitabh
When Pi-hole + Unbound Stop Resolving: A DNSSEC Trust Anchor Fix
I have my own private DNS setup in my home network, powered by Pi-hole running on my very first Raspberry Pi, a humble Model B Rev 2. It’s been quietly handling ad-blocking and DNS resolution for years. But today, something … Continue reading
Posted in FLOSS, RaspberryPi
Tagged dns, DNSSEC, PiHole, RaspberryPi, SysAdmin, Troubleshooting, Unbound
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From Cloud Abstraction to Bare Metal Reality: Understanding the Foundation of Hyperscale Infrastructure
In today’s cloud-centric world, where virtual machines and containers seem to materialize on demand, it’s easy to overlook the physical infrastructure that makes it all possible. For the new generation of engineers, a deeper understanding of what it takes to … Continue reading
Posted in Automation
Tagged automation, cloud infrastructure, hyperscale, Networking
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Why Systemd Timers Outshine Cron Jobs
For decades, cron has been the trusty workhorse for scheduling tasks on Linux systems. Need to run a backup script daily? cron was your go-to. But as modern systems evolve and demand more robust, flexible, and integrated solutions, systemd timers … Continue reading
Posted in FLOSS, Tips/Code Snippets
Tagged automation, DevOps, linux, SysAdmin, systemd, Tech Insights
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Is crontab not a shell script….really?
While trying to figure out an error, I found the following line in one of the crontab files and I could not stop myself from smiling. PATH=$PATH:/opt/mysoftware/bin And that single line perfectly encapsulated the misconception I want to address today: … Continue reading
Beyond the Code: Building a Culture of Resilience & The Future of Recovery
Welcome to the grand finale of our “Unseen Heroes” series! We’ve peeled back the layers of automated system recovery, from understanding why failures are inevitable to championing stateless agility, wrestling with stateful data dilemmas, and mastering the silent sentinels, the … Continue reading
Posted in Resilience
Tagged Automated Recovery, Culture of Resilience, DevOps, Disaster Recovery, Future of Tech, Leadership, SRE, System Resilience
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