Hi, I’m Rohan

A personal searchable reference of commands I actually use, built from my real zsh history.

Standard Prometheus alerts are great for capacity planning, but they are too slow to catch crash logs in high-churn Kubernetes environments. Here is why and how I built Kivert to solve it.

Init containers seem simple: they run in order, they finish, and your app starts. But in production, resource shadowing, restart loops, and silent deadlocks can easily trigger an on-call page.

ALBs don’t have static IPs. When AWS recycles your old IP and a client’s DNS cache hasn’t caught up, their requests go to someone else’s workload. Here’s what causes it and how to fix it with IPAM.

How I got a full Kali Linux environment talking to Claude Code on my Mac, so I can run security tools through an AI that actually understands what it’s doing.

The CloudWatch Agent setup is five commands. The reasons it silently fails are what nobody writes about — so here’s the gotchas first, setup second.

Sessions, OTPs, and temporary tokens are piling up in your database right now. Here’s how TTLs let the database clean them up automatically, and why that’s better than every alternative you’ve tried.

Lambda’s outbound IPs change every invocation. Here’s the right way to give it a fixed IP using a NAT Gateway, and the common mistakes that will waste your afternoon.

How a single command, aws configure sso, ended my twice-daily ritual of copy-pasting AWS credentials and gave me back ten minutes a day.

The complete guide to AWS cross-account access - including trust relationships and IAM permissions both sides need