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coolvds.com › Blog › Hosting Solutions

VPS vs Shared Hosting: Stop Letting Bad Neighbors Kill Your Latency

· CoolVDS Team

In 2012, relying on shared hosting for business-critical applications is a calculated risk that rarely pays off. We analyze the I/O bottlenecks, kernel contention, and why KVM virtualization is the only path for serious Norwegian developers.

coolvds.com › Blog › Tutorials & Guides

Hardening OpenVPN on CentOS 6: A Survival Guide for the Paranoid Sysadmin

· CoolVDS Team

Public Wi-Fi is a security minefield. Stop relying on third-party VPN providers that log your traffic. Here is a battle-tested guide to deploying a military-grade OpenVPN server on a Norwegian VPS using CentOS 6 and 2048-bit encryption.

coolvds.com › Blog › Server Administration

KVM vs OpenVZ: Stop Gambling with Your Production Database Performance

· CoolVDS Team

It is 2012, and the era of oversold 'burstable' RAM is over. We dismantle the OpenVZ myth and explain why Kernel-based Virtual Machine (KVM) combined with SSD storage is the only viable path for high-load applications in the Nordic market.

coolvds.com › Blog › Server Administration

Xen Virtualization: The Definitive Guide for High-Performance Hosting in Norway

· CoolVDS Team

Stop suffering from noisy neighbors. We dissect the architecture of Xen Paravirtualization (PV), analyze the nuances of Dom0 vs. DomU resource scheduling, and explain why serious systems architects in Oslo are abandoning OpenVZ for dedicated Xen instances.

coolvds.com › Blog › Security & Compliance

Securing Your Remote Access: Setting Up OpenVPN on CentOS 6 in Norway

· CoolVDS Team

With the rise of public WiFi insecurity and data privacy concerns, a personal VPN is mandatory for sysadmins. Learn how to deploy OpenVPN on a Norwegian VPS to secure your traffic against snooping and comply with strict local privacy laws.

coolvds.com › Blog › Database Management

Stop Killing Your Disk I/O: Migrating PHP Sessions to Redis

· CoolVDS Team

Is your web application stalling during high traffic? The bottleneck might be your hard disk. Discover why seasoned sysadmins are ditching file-based sessions for Redis 2.2 to achieve sub-millisecond latency.

coolvds.com › Blog › Security & Compliance

Hardening Remote Access: OpenVPN Deployment on Debian 6

· CoolVDS Team

Public Wi-Fi is a security minefield. Learn how to deploy a rock-solid OpenVPN server on Debian Squeeze to encrypt your traffic, bypass restrictive firewalls, and keep your data subject to Norwegian privacy laws.

coolvds.com › Blog › Server Administration

The Xen Hypervisor: Why Real Sysadmins Don't Touch OpenVZ

· CoolVDS Team

Stop suffering from noisy neighbors and 'burst' RAM limits. A deep dive into Xen paravirtualization, why it beats containers for stability, and how to configure DomU instances for maximum throughput in the Norwegian market.

coolvds.com › Blog › Tutorials & Guides

Building a Bulletproof OpenVPN Gateway on CentOS 5: A Sysadmin’s Guide

· Barbora Nová

Stop trusting public Wi-Fi. This guide covers a production-ready OpenVPN deployment on CentOS 5, tackling iptables routing, certificate generation, and the critical TUN/TAP driver requirements often missing in cheap hosting.

coolvds.com › Blog › Database Management

MySQL vs PostgreSQL: The Architect’s Dilemma for 2010

· CoolVDS Team

With Oracle's acquisition of Sun shaking up the open-source world and PostgreSQL 9.0 introducing streaming replication, the database debate has never been hotter. We benchmark the trade-offs for Norwegian infrastructure.

coolvds.com › Blog › Security & Compliance

Building a Fortress: Secure OpenVPN Deployment on CentOS 5

· CoolVDS Team

Stop leaking sensitive data over public WiFi. We guide you through deploying a hardened OpenVPN server in Norway using 2048-bit keys and proper iptables masquerading.

coolvds.com › Blog › Database Management

MySQL Performance Tuning: Stop Killing Your Disk I/O

· CoolVDS Team

Is your MySQL server choking under load? In 2010, the bottleneck is almost always the disk. Learn how to tune my.cnf, switch to InnoDB, and why hardware RAID matters for Norwegian hosting.

coolvds.com › Blog › Database Management

MySQL 5.1 vs PostgreSQL 8.4: Which Database belongs on your VPS?

· CoolVDS Team

With Oracle's recent acquisition of Sun causing uncertainty, we benchmark the raw read speed of MySQL against the data integrity of PostgreSQL 8.4. Learn which engine fits your Norwegian hosting infrastructure.