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coolvds.com › Blog › DevOps & Infrastructure

Locking Down Docker: Survival Guide for Norwegian DevOps in 2016

· CoolVDS Team

Container adoption is exploding, but default configurations leave you vulnerable. We dissect Docker 1.10 security features, user namespaces, and why KVM isolation remains critical for Norwegian data compliance post-Safe Harbor.

coolvds.com › Blog › DevOps & Infrastructure

Demystifying Kubernetes 1.1 Networking: Flannel, Iptables, and Metal

· CoolVDS Team

Kubernetes networking isn't magic—it's packet encapsulation and routing tables. We deep dive into K8s 1.1 networking models, the overhead of overlays like Flannel, and why low-latency hardware is critical for etcd stability.

coolvds.com › Blog › DevOps & Infrastructure

Container Security: Hardening Docker on Linux in the Post-Safe Harbor Era

· CoolVDS Team

Docker is revolutionizing deployment, but its default configuration is a security minefield. We dive into kernel capabilities, user namespaces, and why KVM isolation is non-negotiable for Norwegian data compliance in 2016.

coolvds.com › Blog › DevOps & Infrastructure

Serverless Architecture Patterns: The Hype, The Reality, and The Hybrid Fix

· CoolVDS Team

Is AWS Lambda the future or just vendor lock-in with latency issues? We analyze Serverless patterns for 2016, the death of Safe Harbor, and how to build event-driven architectures on high-performance Norwegian VPS without losing control.

coolvds.com › Blog › Performance Optimization

Scaling API Gateways: Kernel Tuning and Nginx Optimization for Low Latency

· Kateryna Bondar

In a post-Safe Harbor world, hosting APIs in Norway isn't just about compliance; it's about raw performance. We dissect the Linux kernel and Nginx configuration required to handle 10k+ concurrent connections without choking.

coolvds.com › Blog › DevOps & Infrastructure

The Edge of Reason: Why Physical Proximity in Oslo Beats the "Cloud" Hype

· CoolVDS Team

Latency is the silent killer of user experience. With the recent Safe Harbor invalidation, hosting data inside Norway isn't just about speed—it's about survival. We explore technical strategies for localized 'edge' processing using KVM and Nginx.

coolvds.com › Blog › DevOps & Infrastructure

Surviving the Spike: Infrastructure Monitoring When "Uptime" Isn't Enough

· CoolVDS Team

It is December 2015. The Safe Harbor agreement is dead. Your servers are taking traffic. If you are still relying on simple ping checks, you are flying blind. Here is how to architect a monitoring stack that actually scales.

coolvds.com › Blog › DevOps & Infrastructure

Container Security in the Wild West: Hardening Docker 1.9 for Production

· CoolVDS Team

Docker 1.9 is changing the game, but running containers as root is a recipe for disaster. Here is the battle-tested guide to hardening your stack, surviving the 'Safe Harbor' collapse, and why KVM is your only safety net.

coolvds.com › Blog › DevOps & Infrastructure

Orchestration Wars 2015: Docker Swarm 1.0 vs Kubernetes 1.1 on Nordic Iron

· CoolVDS Team

With the recent release of Docker 1.9 and Swarm 1.0, the container orchestration battle has intensified. We benchmark Swarm against Google's Kubernetes and Apache Mesos to see which solution truly belongs in your production stack—and why your underlying hardware might be the bottleneck you ignored.

coolvds.com › Blog › DevOps & Infrastructure

Stop Guessing: A Battle-Hardened Guide to APM and System Latency in 2015

· CoolVDS Team

It's rarely the code; it's usually the infrastructure. We dissect how to monitor disk I/O, steal time, and Nginx upstream latency on Linux servers. Featuring the implications of the recent Safe Harbor ruling for Norwegian data.

coolvds.com › Blog › DevOps & Infrastructure

Docker in Production: Surviving the Orchestration Wars of 2015

· CoolVDS Team

Docker 1.9 just changed the game, but managing containers at scale is still a battlefield. We pit Kubernetes 1.1 against Swarm and Mesos to find the best stack for Norwegian infrastructure post-Safe Harbor.

coolvds.com › Blog › DevOps & Infrastructure

Stop Using Ping: A Sysadmin’s Guide to Infrastructure Monitoring at Scale

· CoolVDS Team

Is your monitoring strategy just a cron job and a prayer? In 2015, 'uptime' isn't enough. We explore the transition from Nagios to time-series metrics, how to detect the dreaded CPU Steal on virtual machines, and why hosting in Norway matters for your data logs.

coolvds.com › Blog › DevOps & Infrastructure

Kubernetes 1.0 Networking: Surviving the Overlay Jungle in Production

· CoolVDS Team

Kubernetes 1.0 is finally here, but the flat-networking model is causing headaches for early adopters. We dissect the performance costs of Flannel vs. Weave and why your underlying VPS architecture decides your cluster's fate.

coolvds.com › Blog › DevOps & Infrastructure

Beyond the Hype: Pragmatic Serverless Patterns for Norwegian Enterprises

· CoolVDS Team

AWS Lambda and the 'Serverless' movement are dominating headlines in 2015, but is the technology ready for mission-critical Nordic workloads? We analyze the latency trade-offs, vendor lock-in risks, and hybrid architectures that combine FaaS agility with the raw power of KVM virtualization.

coolvds.com › Blog › DevOps & Infrastructure

Docker in Production? Not Without These 5 Kernel-Level Security Fixes

· CoolVDS Team

It is 2015 and Docker is eating the world, but 'root' inside a container is still 'root' on the host. We break down the exact flags and KVM architectures you need to secure your Norwegian infrastructure against container breakout.