All articles tagged with coolvds
When vertical scaling hits the ceiling, sharding is the only way out. We explore practical sharding strategies using MySQL 5.7 and ProxySQL, tailored for low-latency infrastructure in Norway.
Latency is the silent killer of microservices. In this deep dive, we bypass default settings to tune the Linux kernel, optimize SSL handshakes, and configure Nginx for raw throughput on high-performance KVM infrastructure.
It is November 2016. Ransomware is exploding, and the EU-US Privacy Shield is shaky. Here is a battle-tested Disaster Recovery guide using MySQL 5.7 GTID, BorgBackup, and Norwegian data sovereignty principles.
Kubernetes networking isn't magic; it's a labyrinth of iptables and routing tables. We break down CNI plugins, overlay networks, and why your underlying hardware matters more than your config in 2016.
A battle-hardened comparison of the new Docker Swarm Mode and Kubernetes 1.4. We analyze performance, complexity, and why your underlying VPS IOPS matter more than your scheduler.
It is 3 AM and latency is spiking. Do you know why? We dive deep into Nginx logging, MySQL profiling, and the ELK stack on Ubuntu 16.04 to diagnose bottlenecks before they kill your uptime.
It is late 2016, and the battle for container dominance has shifted from the runtime to the cluster. We benchmark Kubernetes, Docker Swarm, and Mesos to see which solution actually survives production workloads in the Norwegian market.
Kubernetes networking isn't magic—it's complex Linux routing. We dive into the CNI chaos, overlay network latency, and why your choice of underlying KVM infrastructure in Norway matters for production workloads.
Stop blaming the network. Learn how to diagnose high load, interpret 'steal time', and visualize application latency using native Linux tools and the ELK stack.
A deep dive into kernel-level optimizations and Nginx configuration strategies to handle high-concurrency API traffic, specifically tailored for the Nordic infrastructure landscape of 2016.
A battle-hardened guide to Pod networking, CNI choices, and debugging iptables in Kubernetes 1.2. Learn how to minimize latency on Norwegian VPS infrastructure without relying on public cloud load balancers.
A battle-hardened look at Kubernetes 1.2 networking, from the chaos of iptables to the latency costs of overlay networks like Flannel. Learn how to debug packet drops and why your underlying VPS hardware in Norway makes or breaks your cluster.
Is your API gateway becoming the bottleneck? We dive deep into kernel tuning, Nginx configuration, and the hardware reality required to handle high-concurrency traffic in 2016.
It is March 2016. Microservices are exploding, and your latency is skyrocketing. Here is how to tune Nginx and the Linux kernel for sub-millisecond routing on high-performance KVM VPS infrastructure in Norway.
In 2016, binary 'up/down' checks are insufficient. Learn how to move from basic monitoring to deep system introspection using ELK stack and high-IOPS infrastructure in Norway.
Physics doesn't negotiate. While major cloud providers push centralized regions in Frankfurt or Ireland, Norwegian users pay the price in latency. Here is a battle-tested guide to deploying 'Edge' infrastructure using distributed KVM VPS instances in Oslo.
Is your application slow or is the server dying? In the wake of the Safe Harbor collapse, hosting data in Norway is crucial, but performance is non-negotiable. We dive into the ELK stack, New Relic, and system-level debugging to identify bottlenecks before your users do.
The ECJ just invalidated Safe Harbor. Relying solely on US hyperscalers is now a compliance risk. Here is how to build a hybrid infrastructure that balances sovereignty with scalability.
Is your REST API choking under load? We dive deep into Linux kernel tuning, NGINX upstream keepalives, and why CPU Steal Time is the silent killer of API performance in virtualized environments.
Is your server load spiking despite low CPU usage? The culprit is likely I/O wait. We break down why 15k RPM SAS drives can't handle modern web apps and how SSD arrays change the math.
When your traffic spikes, single servers fail. Learn how to deploy HAProxy 1.4 to distribute load, maintain session persistence, and keep your Norwegian infrastructure online during the 'Slashdot Effect'.
Default Linux installations are a security liability. Learn the critical hardening steps—from SSH keys to iptables—needed to secure your infrastructure against modern botnets, while ensuring compliance with Norway's Personal Data Act.
Is your single Apache server choking on traffic? Learn how to deploy a battle-hardened HAProxy 1.4 load balancer on CentOS 5 to handle millions of requests without breaking a sweat.
WordPress 3.0 "Thelonious" has just dropped. It merges MU and brings custom post types, but it demands more than standard shared hosting can give. Here is the 2010 systems architect's guide to sub-second loads using Nginx, APC, and Varnish.
A battle-hardened guide to setting up Postfix on CentOS 5/Debian Lenny. Learn to secure port 25, master main.cf restrictions, and keep your IP off Spamhaus blacklists.
Is your load average spiking during traffic surges? Apache keeps connections open too long. Learn how to deploy Nginx 0.7 as a reverse proxy to handle thousands of concurrent users on limited RAM.
Raw logs don't lie, but they are impossible to read during a traffic spike. Learn how to deploy AWStats for real-time visualization without killing your server's I/O, and why storage speed is the bottleneck you aren't watching.
Stop relying on manual 'cp -r' for disaster recovery. Learn the 2009 industry standards for automated backup strategies using rsync, cron, and off-site replication to satisfy Datatilsynet.
A default Linux install is a sitting duck. From iptables configuration to securing SSH, here is how we harden CentOS and Debian servers against brute-force attacks and script kiddies.
Public Wi-Fi is a minefield for packet sniffers. Learn how to deploy a secure OpenVPN server in Norway using 2048-bit RSA keys and Xen virtualization to protect your traffic.