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coolvds.com › Blog › DevOps & Infrastructure

Kubernetes in Production: Survival Guide for 2017

· CoolVDS Team

Moving Kubernetes from minikube to bare metal production is where the real pain begins. We cover etcd latency, NVMe requirements, and Norwegian compliance in the v1.6 era.

coolvds.com › Blog › DevOps & Infrastructure

API Gateway Performance Tuning: Nginx, Lua, and the 10ms Goal

· CoolVDS Team

A battle-hardened guide to tuning your API Gateway for maximum throughput and minimal latency using 2017's best practices. From sysctl kernel tweaks to upstream keepalives, we dissect the stack.

coolvds.com › Blog › Performance Optimization

Squeezing Milliseconds: Advanced Nginx API Gateway Tuning on Linux

· CoolVDS Team

Default configurations are the enemy of low latency. In this deep dive, we rip apart sysctl.conf, optimize Nginx worker processes, and explain why hardware bottlenecks will render your software tuning useless without NVMe storage.

coolvds.com › Blog › DevOps & Infrastructure

Kubernetes 1.5 Networking Deep Dive: Surviving the Overlay Chaos

· CoolVDS Team

Packet loss, MTU mismatches, and iptables hell. We dissect the reality of running Kubernetes networking in production and why your underlying VPS choice dictates your cluster's stability.

coolvds.com › Blog › Security & Compliance

The Death of the Perimeter: Implementing Zero-Trust Architecture in 2017

· CoolVDS Team

The 'castle and moat' security strategy is obsolete. With GDPR enforcement looming and sophisticated lateral attacks on the rise, Norwegian CTOs must pivot to a Zero-Trust model. Here is how to implement Google-style BeyondCorp security on your Linux infrastructure today.

coolvds.com › Blog › DevOps & Infrastructure

Kubernetes Networking Deep Dive: Surviving the Packet Jungle in 2016

· CoolVDS Team

Kubernetes 1.4+ networking isn't magic—it's a complex beast of iptables, CNI plugins, and encapsulation. We dissect the flow of a packet, compare Flannel vs. Calico, and explain why your underlying VPS I/O is the hidden bottleneck for etcd.