Best practices on cloud VPS, dedicated servers, Linux and DevOps.
Your average CPU looks fine but p99 latency spikes, health checks flap, and the same Dockerfile builds in wildly different times. Two different mechanisms cause this on a shared-vCPU VPS, and they call for opposite fixes. Here is how to tell hypervisor steal from self-inflicted cgroup throttling.
Read more →Your host is at 100% and /var/lib/docker is enormous. This walks through reading docker system df, what prune touches and skips, the log file that fills the disk silently, and the exact order to run cleanup on a box already out of space.
Read more →A running container with an unreachable published port has four separate causes, and they produce nearly identical symptoms in a browser. Here is the diagnosis order using docker port, ss on the host and inside the namespace, and iptables -t nat -L DOCKER — and why ufw deny lies to you.
Read more →Most guides tell you to move from shared hosting to a VPS "when you grow". That is useless. The real breakpoint is set by two measurable things: how many requests you serve at the same time, and whether your app needs to run software the shared platform will not let you run.
Read more →"International domain" means four different things, and only one of them is what most people actually want. This guide separates a globally available generic TLD from an internationalized (non-Latin) name, the treaty-only .int domain, and running your own TLD — then walks the registration for each with the real 2026 costs.
Read more →A ccTLD like .de or .co.uk ties your site to one country; .com belongs to none. This guide explains what each really is, how Google treats them for geo-targeting, the registration rules that catch people out, and a simple table for deciding.
Read more →Most 'VPS vs dedicated server' guides skip the middle. Karizanta sells three rungs, not two: shared-vCPU VPS, dedicated-vCPU VPS, and a physical dedicated server. This guide walks all three in order and shows where each jump is actually worth paying for.
Read more →Choosing a VPS plan is about matching specifications to your actual workload, not picking the biggest number on a pricing grid. This guide walks through RAM, vCPU, storage, bandwidth and location with real figures, a sizing table, and the signs that tell you when you have outgrown your plan.
Read more →A freshly provisioned VPS is an exposed Linux box that bots probe within minutes. This checklist walks through the first 30 minutes on a new Ubuntu or CentOS server — updates, a non-root user, SSH hardening, firewall, fail2ban, swap and automatic patching — with the exact commands for each distribution.
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