Tag
#Networking
2 articles tagged Networking.
SecuritySeries · Security, Reconsidered
The Castle Was Never the Problem
The castle-and-moat model isn't wrong because perimeters are useless. It's wrong because it teaches you to stop asking questions the moment something is denied entry.
22 Jun 2026 · 10 min read
Cloud SecuritySeries · inside-alibaba-cloud
A Security Group Is Not a Firewall, Even Though Alibaba Cloud Lets You Pretend It Is
It's tempting to treat an ECS security group as 'the firewall' for a workload. That framing quietly drops the parts of the traffic path a security group was never designed to see.
14 Jan 2026 · 10 min read