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#"security"]

All articles tagged with "security"]

#"security"]

Service Mesh in Production: Surviving the Complexity Layer Without Killing Latency

Service meshes promise observability and security but often deliver CPU overhead and latency spikes. Here is the battle-tested guide to implementing Istio on high-performance infrastructure in 2025.

Kill SSH, Keep Kubernetes: Deploying Talos Linux on High-Performance VDS in Norway

Stop patching your OS. Learn why immutable infrastructure is the only path forward for production Kubernetes and how to deploy Talos Linux on CoolVDS for a secure, API-driven cluster.

Mastering GitOps Workflows in 2025: From "Click-Ops" Chaos to Immutable Infrastructure

Stop trusting manual deployments. This guide details the battle-tested GitOps architecture using ArgoCD and KVM-based infrastructure to ensure zero-drift, GDPR-compliant operations in the Nordic region.

Service Mesh in Production: A Battle-Hardened Guide to Surviving Complexity (2025 Edition)

Stop debugging microservices blindly. Learn how to implement Istio Ambient Mesh for zero-trust security and observability without killing your latency, specifically tailored for Norwegian compliance standards.

Kubernetes Networking in Production: eBPF, Gateway API, and The Latency Trap

A deep dive into the state of Kubernetes networking in mid-2025. We dissect CNI choices, the shift to Gateway API, and why your underlying VDS architecture makes or breaks etcd performance in Norwegian data centers.

Stop Cowboy Coding: A Battle-Tested GitOps Workflow for Norwegian High-Availability Clusters

Manual `kubectl apply` is a resignation letter waiting to happen. Learn the architecture of a resilient GitOps pipeline using ArgoCD and Kustomize, specifically tailored for GDPR-compliant infrastructure in Norway.

GitOps Workflow Best Practices: Stopping Config Drift Before It Kills Your Production

Manual deployments are a liability. Learn the battle-tested GitOps workflows that secure your stack, satisfy Norwegian compliance, and leverage high-performance infrastructure.

GitOps in 2025: Stop SSH-ing Into Production or Go Home

Manual deployments are dead. Learn the strict GitOps workflows used by elite DevOps teams in Norway to maintain compliance, speed, and sanity on high-performance infrastructure.

Disaster Recovery Architectures for Nordic Systems: Beyond "Hoping for the Best"

A battle-hardened guide to survival. We dismantle traditional backup strategies and replace them with immutable storage, automated Ansible restoration pipelines, and Norway-compliant data sovereignty protocols.

Service Mesh Survival Guide: Implementing Istio Without Killing Latency (2025 Edition)

A battle-hardened guide to deploying a Service Mesh in 2025. We cover mTLS compliance for Norwegian standards, resource optimization on KVM, and why your underlying hardware matters more than your YAML config.

Stop `kubectl apply`-ing into Production: A Bulletproof GitOps Workflow for Norwegian Enterprises

Manual deployments are a liability. Discover the architectural standard for GitOps in late 2024, focusing on ArgoCD, strict compliance with Norwegian data laws, and why underlying infrastructure latency determines reconciliation speed.

Kubernetes Networking is Broken by Default: A Deep Dive for Northern Europe

Default K8s networking is a recipe for latency and security holes. We dissect CNI choices (Cilium vs Calico), the Gateway API shift, and how to optimize packet flow specifically for Norwegian infrastructure.

Surviving the Service Mesh Nightmare: A Practical Guide for Norwegian Ops

Service Meshes add security and observability but can destroy latency. Here is how to implement Linkerd or Istio correctly on high-performance infrastructure without waking up at 3 AM.

Kubernetes Networking in 2024: Moving Beyond iptables to eBPF for Low Latency

A deep dive into optimizing Kubernetes networking for high-performance workloads. We analyze CNI choices, Gateway API implementations, and why underlying hardware defines your overlay network's success.

Service Mesh Survival Guide: Taming Microservices Latency in Norway

Microservices are great until network chaos sets in. Learn how to implement a Service Mesh (Istio/Linkerd) without destroying performance, utilizing CoolVDS's high-performance NVMe infrastructure for the specific needs of the Norwegian market.

Automating Compliance: Surviving Datatilsynet Audits with Infrastructure as Code in Norway

Manual security audits are a liability in the era of NIS2 and GDPR. Learn how to automate CIS benchmarks and compliance checks using Ansible and OpenSCAP, ensuring your Norwegian infrastructure is audit-ready 24/7.

Building Your Own Serverless Platform: Firecracker MicroVMs on Linux KVM

Stop paying the AWS Lambda premium. Learn how to deploy Amazon's Firecracker MicroVMs on bare-metal capable VPS infrastructure for millisecond boot times and strict isolation.

Surviving Microservices Hell: A Pragmatic Service Mesh Guide for 2024

Stop debugging network ghosts. Learn how to implement Istio for mTLS, circuit breaking, and observability on high-performance infrastructure without killing your latency.

Kubernetes Networking in 2024: eBPF, Gateway API, and the Latency Trap

A battle-hardened guide to debugging Kubernetes networking. We explore the shift from iptables to eBPF, why your CNI choice dictates your CPU overhead, and how to keep traffic local to Norway for compliance and speed.

Surviving Microservices Hell: A Practical Service Mesh Implementation Guide for 2024

Don't let your microservices become a distributed monolith. Learn how to deploy Istio for zero-trust security and observability without killing latency, tailored for Norwegian infrastructure requirements.

Kubernetes Networking Deep Dive: Optimizing CNI & eBPF for Low-Latency Architectures

A battle-hardened guide to Kubernetes networking in 2024. We analyze Calico vs. Cilium, debugging DNS latency, and implementing BGP routing on bare-metal VPS infrastructure in Norway.

Automated Backups: The "rm -rf" Insurance Policy for Serious Sysadmins

RAID is not a backup. Learn how to script bulletproof, automated backups for your Linux servers using tools available today, ensuring you survive the inevitable hardware failure or user error.

Building a Bulletproof Email Gateway with Postfix on CentOS 6

Stop letting shared hosting blacklists kill your deliverability. This guide covers the architectural necessities of a robust Postfix deployment, from rDNS configuration to RBL implementation, ensuring your emails actually reach the inbox.

Escaping SVN Hell: Building a Private Git Server with Gitolite on Ubuntu 10.04

Stop relying on fragile centralized version control or public third-party hosts. Learn how to deploy a rock-solid, private Git server using Gitolite on Ubuntu 10.04 LTS, ensuring data sovereignty under Norwegian law.

Automated Backups: Why Your Manual Shell Scripts Will Eventually Fail You

RAID is not a backup. Stop relying on luck and manual tarballs. Here is the battle-hardened guide to automating disaster recovery on Linux systems using rsync, encryption, and offsite storage in compliance with Norwegian data laws.