Insights, tutorials, and updates from the CoolVDS team
Sending passwords in cleartext is professional suicide. With the recent Gumblar exploits targeting FTP, we detail how to lock down your Norwegian VPS using OpenSSH's chroot features.
Tired of 'noisy neighbors' killing your database performance? We break down why KVM virtualization on Linux 2.6 is superior to container-based legacy systems, and how to tune I/O schedulers for maximum throughput.
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.
Is Apache choking your server's memory? We benchmark Apache Prefork against Lighttpd's event-driven architecture to see which web server rules the 2009 hosting landscape.
When your single Apache server hits MaxClients, your business stops. Learn how to deploy HAProxy 1.3 to distribute load, maintain session persistence, and keep your Norwegian VPS online.
Stop letting shared hosting IPs blacklist your business. We break down a battle-tested Postfix/Dovecot setup on CentOS 5 that ensures deliverability and compliance with Norwegian data laws.
Stop your emails from hitting the spam folder. A battle-hardened guide to configuring Postfix in 2009, ensuring clean headers, proper rDNS, and compliance with Norwegian data laws.
In 2009, an unpatched server lasts less than 15 minutes online before compromise. Here is the battle-tested hardening checklist for CentOS and Debian systems.
JavaScript trackers lie. Bots, text-based browsers, and privacy plugins make client-side analytics unreliable. Learn how to deploy AWStats on your VDS for the absolute truth.
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.