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coolvds.com › Blog › Security & Compliance

FTP is Dead: Why Plain Text Protocols Have No Place in 2010

· CoolVDS Team

Sending passwords over port 21 is professional negligence. We analyze the packet-level risks of FTP and implement a chrooted SFTP solution using OpenSSH 5.x to secure your Norwegian infrastructure.

coolvds.com › Blog › Server Administration

Apache vs. Lighttpd: Surviving the C10k Problem on Linux

· CoolVDS Team

Is your Apache server choking on keep-alive connections? We dissect the architectural differences between the industry standard Apache 2.2 and the event-driven challenger Lighttpd to determine which daemon belongs on your Norwegian VPS.

coolvds.com › Blog › Database Management

MySQL 5.1 Performance Tuning: Surviving High Load with InnoDB and Xen

· CoolVDS Team

Is your database locking up under traffic spikes? Stop using MyISAM. We dive deep into my.cnf optimization, the InnoDB Plugin, and why disk I/O on 15k SAS drives (or SSDs) matters more than CPU for Norwegian VPS hosting.

coolvds.com › Blog › Security & Compliance

Linux Server Hardening: Survival Guide for the Norwegian Sysadmin

· CoolVDS Team

The internet is a hostile environment. Learn how to lock down your CentOS or Debian VPS against brute-force attacks and script kiddies using tools like iptables and Fail2Ban, while keeping your data compliant with Datatilsynet standards.

coolvds.com › Blog › Performance Optimization

Stop Writing to Disk: Accelerating PHP Sessions with Redis 1.2

· CoolVDS Team

Is high I/O wait killing your web application? Default file-based sessions are a bottleneck. Learn how to implement Redis as a session handler to reduce latency and maintain persistence.

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.

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 › Server Administration

The I/O Bottleneck: Why Your 'Cloud' Storage is Killing Application Performance

· CoolVDS Team

While everyone obsesses over CPU cycles, disk latency is the silent killer of web applications in 2010. We dissect SAN vs. Local RAID-10, analyze the impact of 'noisy neighbors' on shared storage, and explain why hosting your data on Norwegian soil is critical for compliance with Datatilsynet.

coolvds.com › Blog › Performance Optimization

Scaling PHP: Why mod_php is Dead and PHP-FPM is the Future

· CoolVDS Team

Stop wasting RAM with Apache's mod_php. Learn how to implement PHP-FPM with Nginx to handle high concurrency and stabilize your Norwegian hosting infrastructure.

coolvds.com › Blog › Server Administration

Automated Backups: Why Your RAID-10 Array Won't Save You

· CoolVDS Team

RAID provides redundancy, not backup. If you delete a file, RAID deletes it everywhere. Learn how to implement bulletproof, automated offsite backups using rsync and MySQL best practices tailored for Norwegian compliance.

coolvds.com › Blog › Server Administration

Scaling PHP in 2009: Why You Should Ditch mod_php for PHP-FPM and Nginx

· CoolVDS Team

Stop letting Apache eat your RAM. Learn how to implement the PHP-FPM patch with Nginx on CentOS 5 to handle thousands of concurrent connections without swapping, specifically tailored for high-traffic Norwegian environments.