All articles tagged with Sysadmin
Default configurations are the enemy of performance. In this deep technical guide, we dissect kernel parameters, NGINX upstream optimizations, and the hardware realities required to keep your API Gateway latency under 10ms in 2024.
Stop relying on "hope" for database migrations. Learn the architectural patterns for zero-downtime transfers using replication, NVMe-backed storage, and strict compliance with Norwegian data laws.
A deep dive into Kubernetes networking performance for Nordic infrastructure. We analyze CNI choices, switch from iptables to IPVS, and explain why underlying VPS hardware dictates your cluster's throughput.
A battle-hardened guide to debugging and optimizing K8s networking in 2024. We cover CNI selection, kernel tuning, and why NVMe storage prevents etcd latency spikes in Oslo-based clusters.
Backups are useless if your Restore Time Objective (RTO) is three days. Learn how to architect a compliant, low-latency Disaster Recovery plan using KVM, WireGuard, and Norwegian infrastructure.
A battle-hardened guide to debugging Kubernetes networking issues, optimizing CNI performance with eBPF, and configuring bare-metal-like routing on CoolVDS infrastructure in Norway.
A battle-hardened guide to dissecting K8s networking layers, optimizing CNI performance with eBPF, and solving latency issues at the infrastructure level.
Default configurations are the enemy of performance. We dive into kernel tuning, NGINX upstream keepalives, and the hardware reality required for low-latency API delivery in Norway.
Default configurations are the silent killers of throughput. This guide bypasses the fluff to deliver raw kernel tuning, NGINX optimization strategies, and infrastructure decisions required to handle high-concurrency API traffic in the Nordic region.
Backups are not a strategy. We analyze RTO/RPO calculation, GDPR compliance under Datatilsynet guidelines, and why high-IOPS NVMe storage is critical for restoration times.
Default Kubernetes networking is a bottleneck waiting to happen. We dissect CNI choices, eBPF performance, and kernel tuning to lower latency for Norwegian workloads.
A battle-hardened look at K8s networking in 2023. We strip away the abstraction magic to discuss CNI performance, the limits of iptables, and why underlying hardware latency dictates your cluster's fate.
Default container configurations are a liability. From discarding root privileges to enforcing rigorous network policies, this guide details the exact steps to secure your Norwegian infrastructure against supply chain attacks and runtime threats.
Stop accepting default configurations. A deep dive into kernel limits, NGINX upstream keepalives, and TCP stack optimization to reduce latency below 10ms for Nordic workloads.
I recently watched a 'secure' cluster get owned in under five minutes due to a default capability. Here is the battle-tested guide to container security, focusing on rootless execution, immutable filesystems, and why hosting jurisdiction in Norway is your last line of defense.
A battle-hardened guide to locking down Docker and Kubernetes in Norwegian infrastructure. We analyze rootless execution, read-only filesystems, and why your choice of KVM virtualization matters for GDPR compliance.
A battle-hardened guide to optimizing API Gateways for Nordic traffic. We dive deep into kernel TCP stacks, Nginx upstream keepalives, and why underlying hardware latency dictates your 99th percentile.
Cloud costs are bleeding your OpEx dry. We analyze specific strategies to cut infrastructure spend without sacrificing latency, focusing on 2023's shift toward predictable bare-metal performance and Norwegian data sovereignty.
Default configurations are the silent killers of throughput. This guide dissects the Linux kernel and Nginx parameters required to handle 10k+ concurrent connections without jitter, specifically tailored for Nordic infrastructure.
Stop following resume-driven development. We benchmark the three major container orchestrators on Norwegian NVMe infrastructure to determine what actually works for production workloads in 2023.
With rising energy costs and inflation impacting IT budgets across the Nordics, reliance on opaque hyperscaler billing is no longer sustainable. We explore actionable Linux-level optimizations, database tuning, and infrastructure consolidation strategies to cut costs without sacrificing performance.
Hope is not a strategy. We break down the technical reality of RPO/RTO, GDPR compliance in Norway, and why NVMe throughput defines your actual recovery speed.
Default configurations are the silent killers of API latency. We explore kernel-level tuning, Nginx worker affinity, and TCP stack optimizations to handle 10k+ RPS, specifically tailored for the Norwegian infrastructure landscape.
Stop blaming your backend code for 504 errors. We dissect the kernel-level bottlenecks and Nginx configurations causing latency spikes, specifically tailored for Norwegian infrastructure constraints.
Container isolation is a myth if your kernel isn't secure. We dissect rootless modes, supply chain defense, and why Schrems II compliance demands strict infrastructure sovereignty in Norway.
A deep dive into K8s networking primitives for DevOps engineers. We cover CNI selection, tuning conntrack for high loads, and why raw compute performance matters for overlay networks. Written for the Norwegian market.
Relying on RAID is not a disaster recovery plan. In a post-Schrems II era, we explore how to architect immutable, encrypted backups for PostgreSQL on Norwegian infrastructure using BorgBackup and systemd, ensuring compliance with Datatilsynet while minimizing RTO.
Stop letting TCP handshakes and noisy neighbors kill your API performance. A deep dive into kernel tuning, Nginx optimization, and why infrastructure location matters more than code in 2022.
A battle-hardened guide to debugging CNI conflicts, optimizing MTU settings, and securing pod traffic. Learn why the underlying VPS architecture defines your cluster's stability.
Manual security audits are a liability. Learn how to automate server hardening using Ansible and OpenSCAP on Ubuntu 22.04, ensuring GDPR compliance while leveraging NVMe performance in Oslo.