Servers & Cloud
How DNS, domains, certificates and monitoring actually work — and what to check first when they don’t. No vendor pitches, no listicles.
Servers & CloudOct 12, 2026 · 7 min read
What a load balancer actually does (and when you don't need one)
Load balancers get bolted onto every architecture diagram by default. Here's what they actually do — health checks, routing, sessions — and when a single server is simpler and faster.
Servers & CloudOct 9, 2026 · 5 min read
How to read server metrics: rising trends vs one-time jumps
A CPU or disk reading on its own tells you nothing — learn the techniques for telling a one-time spike from a genuine rising trend before it pages you.
Servers & CloudSep 30, 2026 · 5 min read
Find and clean up unused reserved IP addresses
A reserved IP address keeps getting billed long after its server is gone. Here's how to find orphaned addresses across providers and clean them up safely.
Servers & CloudSep 18, 2026 · 6 min read
Cloud firewall rules explained: default-deny, inbound/outbound and common mistakes
A practical breakdown of how cloud firewall rules actually work, why default-deny matters, and the ports people leave open without realising it.
Servers & CloudSep 7, 2026 · 6 min read
IPv4 vs IPv6 explained: differences, dual-stack, and why it matters
A practical comparison of IPv4 and IPv6 addressing, headers, and NAT — plus what dual-stack means for the servers you run today.
Servers & CloudAug 17, 2026 · 5 min read
How to secure your infrastructure in 2026: a practical checklist
A practitioner's checklist for securing DNS, TLS, servers and monitoring in 2026 — covering zero trust, DNSSEC, certificate automation and supply chain hygiene.
Servers & CloudAug 12, 2026 · 5 min read
When should you use cloud firewalls?
Cloud firewalls filter traffic before it reaches your server; host firewalls filter it after. Here's when to use each, and the sane defaults to start with.
Servers & CloudJul 22, 2026 · 10 min read
Hetzner vs DigitalOcean vs AWS: price, performance and features compared
An even-handed comparison of Hetzner, DigitalOcean and AWS on pricing, instance types, bandwidth, SLAs and Kubernetes — so you can pick the right one for the job.
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