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coolvds.com › Blog › Performance Optimization

Scaling API Throughput in 2013: Why Your Reverse Proxy is Choking

· CoolVDS Team

Is your REST API timing out under load? We dive deep into Nginx tuning, Linux kernel optimization, and why choosing the right KVM virtualization in Norway is critical for sub-millisecond latency.

coolvds.com › Blog › Security & Compliance

Surviving the Shared Kernel: Hardening LXC & OpenVZ for Production

· CoolVDS Team

Container virtualization is lightweight but risky. Learn how to lock down LXC and OpenVZ environments against root escalation and resource exhaustion using cgroups, iptables, and the new Kernel 3.8 user namespaces.

coolvds.com › Blog › DevOps & Infrastructure

Surviving the Sprawl: LXC vs. OpenVZ vs. KVM High-Availability Architectures

· CoolVDS Team

A battle-hardened look at scaling infrastructure in 2013. We tear down the differences between Linux Containers and full virtualization, optimize for SSD I/O, and explain why KVM is the only sane choice for critical workloads in Norway.

coolvds.com › Blog › Server Administration

Disaster Recovery in the Fjord: Why RAID Is Not A Backup Strategy

· CoolVDS Team

It is 2013. If you are still relying on RAID 10 as your disaster recovery plan, you are one hardware failure away from unemployment. Here is how to architect true resilience using KVM, rsync, and common sense.

coolvds.com › Blog › DevOps & Infrastructure

LXC vs. OpenVZ: The Reality of Container Management in 2013

· CoolVDS Team

Container virtualization promises efficiency, but shared kernels come with hidden costs. We compare OpenVZ, LXC, and KVM strategies for Norwegian DevOps teams facing the 'noisy neighbor' dilemma.

coolvds.com › Blog › Security & Compliance

Trust is a Vulnerability: Why I Treat My Private LAN Like a Public WiFi

· CoolVDS Team

The 'crunchy shell, soft center' security model is dead. Learn how to implement a Zero-Trust architecture on your VPS using iptables, SSL everywhere, and Norwegian privacy standards. No firewalls between you and the truth.

coolvds.com › Blog › DevOps & Infrastructure

Stop Trusting Top: The Real Art of Infrastructure Monitoring at Scale

· CoolVDS Team

Nagios alerts are useless if your disk I/O is choking. A battle-hardened look at monitoring high-load systems in 2013, why OpenVZ lies to you about load, and how to configure Zabbix and Munin for true visibility.

coolvds.com › Blog › DevOps & Infrastructure

Beyond Nagios: Why "Green Lights" Are Killing Your Uptime Strategy

· CoolVDS Team

It is 2013, and ping checks are no longer enough. We explore the shift from basic monitoring to deep system introspection using StatsD, Graphite, and Logstash on high-performance KVM architecture.

coolvds.com › Blog › Security & Compliance

Paranoia as a Policy: Implementing Zero-Trust Networking on Linux

· CoolVDS Team

The traditional perimeter firewall is dead. Learn how to architect a 'Zero Trust' infrastructure on KVM VPS using IPTables, OpenVPN, and strict access controls—assuming your local network is already compromised.