Canonical under DDoS: what my Railway logs and uptime say about my real exposure

Why do we assume shared infrastructure "just works" until it stops working for someone else? I spent years living inside that assumption before the Canonical DDoS forced me to actually measure it against my own logs.

Last Wednesday I opened HN and saw "Canonical under DDoS attack" sitting at 178 points. First instinct: scroll past. Second instinct — the one that won — open Railway and figure out exactly how tied I was to the servers someone was hammering at that moment.

The answer was uncomfortable.

Ubuntu DDoS 2025: what happened and why it matters in production

The attack targeted Canonical's distribution infrastructure — mirrors, APT repositories, the network that feeds apt-get update on millions of machines. It wasn't a code breach. Nothing was stolen.…