Ashutosh Varma's Lab

Systems Engineering

Ashutosh

Varma

Blog // deep dives Projects // things I've built
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What I Do

Words & work.
All of it.

Writing

Blog

Deep dives into Linux systems, ZFS encryption, Proxmox virtualization, and security tooling.

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Building

Projects

Rust CLI tools, AI-powered monitoring systems, and open-source utilities — things I've built and run in production.

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From the blog

Security May 13, 2026

Homelab Intrusion Defense with CrowdSec: Engine in Docker, Bouncers on Proxmox and MikroTik

Run CrowdSec in Docker as a central detection engine, with nftables bouncer on Proxmox and cs-routeros-bouncer on MikroTik. Full setup with collection tuning, whitelisting, and CAPI tradeoffs.

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Linux Jul 28, 2021

Install Arch Linux on ZFS with Native ROOT Encryption

Full walkthrough for installing Arch Linux with ZFS as the root filesystem, native encryption via a passphrase, and GRUB bootloader configuration.

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Security Jul 27, 2021

Secure SSH Keys using FIDO2/U2F Security Keys

How to use ed25519-sk keys for 2FA SSH authentication. No more GPG hacks. Works with any FIDO2/U2F compatible security key.

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