Insights, tutorials, and updates from the CoolVDS team
Is Apache mod_php eating your RAM? Discover how switching to PHP-FPM and Nginx can handle high concurrency without melting your server. A guide for serious sysadmins.
Is your database locking up under load? Learn how to optimize MySQL 5.1 on CentOS, tune your my.cnf for heavy traffic, and why disk I/O latency is the silent killer of web applications.
Is Apache eating your RAM? Stop scaling vertically. Learn how to deploy Nginx 0.7 as a reverse proxy to handle thousands of concurrent connections while cutting server load in half.
Public Wi-Fi is a security nightmare. Learn how to deploy a hardened OpenVPN server on CentOS 5 to secure your remote connections using 2048-bit RSA encryption.
Is your data stuck on a single spinning disk? In 2009, 'The Cloud' is more than buzz—it's about survival. We analyze RAID 10 reliability, I/O bottlenecks, and why Norwegian privacy laws beat the Patriot Act.
Is your VPS randomly killing MySQL processes? In 2009, the hosting market is flooded with oversold OpenVZ containers. We dive deep into /proc/user_beancounters, kernel limits, and why hardware virtualization (Xen/KVM) is the only safe bet for Norwegian businesses.
Is your site stalling under load? It might be disk I/O on /tmp. We explore replacing file-based sessions with the emerging Redis key-value store to slash latency.
Is your database locking up under traffic? We dive deep into my.cnf optimization, the InnoDB vs MyISAM debate, and why disk I/O latency is the silent killer of Web 2.0 applications.
Stop letting "noisy neighbors" steal your CPU cycles. We compare KVM against container-based virtualization to show why hardware isolation is the only choice for serious hosting in 2009.
Is OpenVZ right for your production stack? We analyze the technical trade-offs of container-based virtualization, from 'user_beancounters' to kernel sharing, and why disk I/O matters more than CPU.
Tired of unpredictable performance on oversold servers? We dissect the Xen hypervisor architecture, explain the Dom0/DomU relationship, and why strict resource isolation is the only way to guarantee stability for your Norwegian infrastructure.
Is Subversion slowing your team down? Learn how to deploy a secure, private Git server on CentOS 5 using SSH. Cut latency between Oslo and Kyiv and regain control of your code.
Is your LAMP stack choking on session locks? Forget MySQL and file-based storage. We test the new Redis project against Memcached and show you how to cut latency by 80% using high-performance Xen VPS nodes.
Stop guessing why your server crashed at 3 AM. We break down the ultimate 2009 monitoring stack: Nagios for critical alerts and Munin for performance trending. Essential for every serious sysadmin.
Public Wi-Fi is a minefield. Secure your traffic by building a robust OpenVPN gateway. We cover the specific config flags, routing, and why kernel-level control on CoolVDS matters for encryption.
Is your single Apache server ready for a traffic spike? Learn how to deploy HAProxy 1.3 for enterprise-grade load balancing on CoolVDS without the $20,000 hardware price tag.
Tired of OpenVZ 'burst' RAM limits and noisy neighbors crashing your MySQL? We break down why KVM is the superior choice for serious sysadmins in Norway.
Default installations are honey pots for script kiddies. Learn the battle-tested iptables rules and SSH configs that keep your Norway VPS secure while others get rooted.
Is Apache's process overhead killing your server's RAM? We benchmark the industry standard against the event-driven speed demon, Lighttpd. Learn how to optimize for the Norwegian market.
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.