→ 4 posts on this topic

Security.

Hardening what you expose: bastion access patterns, DNS-level filtering, and a look at how mobile ransomware works.

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DNS Under the Hood: Root Servers, Authoritative DNS, and Unbound

How a DNS query actually resolves — root servers, authoritative nameservers, and running Unbound as your own recursive resolver behind Pi-hole.

Pihole + Tailscale Setup Guide

A detailed guide on setting up Pi-hole with Tailscale for ad-blocking and DNS management.

Bastion Servers: Jump Hosts

What a bastion server (jump host) actually does, and how it differs from an API gateway and a load balancer.

Ransomeware : Android

Ransomware-as-a-Service is a real, purchasable thing. A look at how it reaches Android phones and what it does once there.