Insights, tutorials, and updates from the CoolVDS team
While 'The Cloud' buzzword takes over 2009, physical disk I/O remains the bottleneck. We analyze why local RAID-10 beats network storage and how to tune Linux for high-throughput hosting in Norway.
Public Wi-Fi is a minefield. Secure your connection with a custom OpenVPN implementation. We cover TUN/TAP bridging, 2048-bit RSA keys, and iptables routing on a dedicated Norwegian VPS.
Is your 'guaranteed' RAM actually available? We break down CPU scheduling, disk I/O bottlenecks (RAID 10 vs SATA), and why 'burst' resources are a trap for serious hosting in 2009.
Raw access logs are unreadable. Learn how to deploy and tune AWStats for deep traffic insights, optimize for disk I/O, and navigate Norwegian privacy requirements on high-performance infrastructure.
Public Wi-Fi is a security minefield. Learn how to deploy a robust OpenVPN server on Linux to encrypt your traffic, bypass restrictions, and secure your data under Norwegian privacy laws.
Sending passwords in cleartext is professional negligence. Learn how to implement secure, chrooted SFTP on your servers using OpenSSH 5, ensuring compliance with Norwegian data laws without sacrificing speed.
With Oracle's acquisition of Sun Microsystems shaking the open source world, we analyze the technical trade-offs between MySQL and PostgreSQL for high-traffic Norwegian infrastructure.
RAID is not a backup. Stop relying on manual FTP transfers and learn to build bulletproof automated backup rotation using Bash, rsync, and MySQL dumps on Linux.
Tired of your VPS crawling whenever a neighbor gets Digged? We break down why Kernel-based Virtual Machine (KVM) beats OpenVZ for stability, why RAID-10 SAS matters, and how Norwegian privacy laws protect your data better than the US Patriot Act.
Is Apache 2.2 eating all your RAM? We benchmark the event-driven architecture of Lighttpd against the Apache process model. Learn how to handle high concurrency on Norwegian infrastructure without upgrading your hardware.
Is your server swapping to death under load? Stop using mod_php. We explore the Nginx + PHP-FPM architecture to handle thousands of concurrent connections on your VDS without buying more RAM.
OpenVZ is fine for hobbyists, but if you value strict resource isolation and kernel stability in 2009, Xen is the mandatory standard. Here is the technical breakdown of PV vs HVM and why we built CoolVDS on it.
Is Apache eating all your RAM? Learn how to deploy Nginx as a reverse proxy to handle high concurrency, reduce load, and serve static content efficiently on your VPS.
Stop guessing why your server crashed. Learn how to implement a battle-tested monitoring stack using Munin for trends and Nagios for alerts on your Linux VPS.
Tired of unpredictable load averages and 'noisy neighbors'? We dive into the KVM vs. OpenVZ debate, benchmark the new Intel Nehalem architecture, and explain why true hardware virtualization is non-negotiable for serious database performance in 2009.
Is your single Apache server a ticking time bomb? Learn how to architect a high-availability cluster using HAProxy to split traffic across multiple nodes, ensuring your Norwegian business stays online when it matters most.
Is Apache eating all your RAM? Learn how to deploy Nginx 0.7 as a reverse proxy to handle thousands of concurrent connections while keeping your backend stable. Essential config for Norwegian systems administrators.
Tired of 'noisy neighbors' killing your MySQL performance? We dive deep into Xen Paravirtualization (PV), kernel tuning, and why hardware isolation matters for your Norway-based infrastructure in 2009.
Don't let traffic spikes kill your uptime. Learn how to implement robust Layer 7 load balancing using HAProxy 1.3 on Linux to distribute load across multiple Xen web nodes.
With Oracle's acquisition of Sun Microsystems shaking the open source world, we benchmark MySQL 5.1 against PostgreSQL 8.3. Which database engine actually handles the load?
Stop reacting to downtime and start predicting it. A battle-hardened guide to configuring Nagios 3 and Munin on CentOS and Debian to catch failures before your customers do.
Tired of your MySQL process dying due to 'noisy neighbors'? We dismantle the OpenVZ overselling trap and explain why KVM is the only serious choice for production workloads in 2009.
A default Linux installation is a sitting duck. In this guide, we cover essential 2009-era security practices: hardening SSH, configuring IPTables, and optimizing for the Norwegian threat landscape.
With Oracle's recent move to acquire Sun, the database landscape is shifting. We break down the technical differences between MySQL 5.1 and PostgreSQL 8.3 to help you decide.
Is your disk I/O choking on session files? Learn why file-based session management is obsolete and how the new Redis project offers a persistent, sub-millisecond alternative for high-load applications.
Is your single Apache server choking on load average? Stop optimizing httpd.conf and start load balancing. Here is how to deploy HAProxy 1.3 on CentOS to handle traffic spikes without buying an F5.
Is Apache eating all your RAM? Discover how the PHP-FPM patch coupled with Nginx can lower your memory footprint and handle high concurrency better than standard LAMP stacks.
Latency kills conversion. Why routing through Frankfurt fails your Oslo users, and how to choose the right Xen-based VDS architecture under Norwegian data laws.
Stop fire-fighting at 3 AM. Learn how to implement robust server monitoring with Nagios and Munin to predict failures before they crash your infrastructure.
Is OpenVZ the efficiency king or a trap for oversold resources? We analyze the pros, cons, and kernel limitations of container-based virtualization for Norwegian sysadmins.