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coolvds.com › Blog › Server Administration

Sleep Soundly: The Paranoid SysAdmin's Guide to Bulletproof Server Backups

· CoolVDS Team

RAID is not a backup. If you accidentally drop a database table at 3 AM, mirroring just replicates the error instantly. Here is how to architect a fail-safe backup strategy using rsync, automysqlbackup, and Norwegian remote storage.

coolvds.com › Blog › Server Administration

Xen Virtualization: The SysAdmin's Guide to True Isolation

· CoolVDS Team

Stop gambling with oversold containers. Discover why Xen paravirtualization is the definitive choice for performance, stability, and Norwegian data compliance in 2010.

coolvds.com › Blog › Server Administration

Scaling LAMP: Saving Your Server from the Apache Death Spiral with Nginx

· CoolVDS Team

Is your Apache server thrashing swap every time traffic spikes? Stop throwing RAM at the problem. Learn how to deploy Nginx 0.7 as a reverse proxy to handle thousands of concurrent connections while keeping your backend lean.

coolvds.com › Blog › DevOps & Infrastructure

The I/O Bottleneck: Why Your "Cloud" Database is Crawling (And How to Fix It)

· CoolVDS Team

It is 2010, and virtualization is taking over, but shared storage is killing your database performance. We analyze the latency hidden in SANs, the rise of SSDs in enterprise hosting, and why keeping your data in Norway matters for compliance and speed.

coolvds.com › Blog › Tutorials & Guides

Tunneling Through the Noise: Bulletproof OpenVPN Setup on CentOS 5

· Kim Min-jun

Secure your remote connections and bypass restrictive firewalls using OpenVPN. A battle-hardened guide to setting up a secure gateway on Norwegian infrastructure, ensuring low latency and strict data privacy compliance.

coolvds.com › Blog › Database Management

MySQL 5.1 vs PostgreSQL 8.4: A Sysadmin's Guide to Choosing the Right Engine

· CoolVDS Team

With Oracle's acquisition of Sun microsystems sending shockwaves through the open source community, we analyze the technical trade-offs between the ubiquitous MySQL and the feature-rich PostgreSQL 8.4 for high-availability deployments in Norway.

coolvds.com › Blog › DevOps & Infrastructure

Cloud Storage vs. High-Performance VPS: The 2010 Architecture Guide

· CoolVDS Team

As we approach 2010, the 'Cloud' buzzword is everywhere. But for high-I/O applications, local RAID 10 storage still beats remote object storage. Here is how to architect for speed and compliance in Norway.

coolvds.com › Blog › Server Administration

Linux Server Hardening: The 2009 Survival Guide for Nordic Admins

· CoolVDS Team

Script kiddies are scanning your IP right now. Stop relying on default configs. Here is the battle-tested strategy using iptables, SSH keys, and Fail2Ban to secure your Nordic VPS infrastructure.