All articles tagged with "virtualization"]
Containerization is revolutionizing deployment, but the security model in 2014 is still the Wild West. From Shellshock mitigation to kernel namespaces, here is how to run Docker securely on Norwegian infrastructure without exposing root.
Docker 0.9 has changed deployment, but networking across multiple hosts remains a nightmare. We dive deep into manual OVS bridging and GRE tunnels to build a scalable cluster before orchestration tools catch up.
Cloud scalability often leads to bill shock. We dissect the 2013 virtualization landscape, moving beyond 'burstable' resources to tangible KVM optimization, SSD leverage, and LEMP stack tuning to cut monthly hosting overhead without sacrificing I/O.
It is March 2013. LXC is entering the enterprise and Docker is making waves. But does sharing a kernel compromise your data? We explore cgroups, namespace isolation, and why hardware virtualization (KVM) remains the gold standard for security in Norway.
Container virtualization is the future, but networking across hosts is a nightmare. We explore how to build a robust multi-host network using LXC, GRE tunnels, and Open vSwitch on high-performance Linux clusters.
Container virtualization is lightweight but risky. Learn how to lock down LXC and OpenVZ environments against root escalation and resource exhaustion using cgroups, iptables, and the new Kernel 3.8 user namespaces.
OpenVZ overselling is destroying your database performance. We explore why Kernel-based Virtual Machine (KVM) is the production standard for Norway's high-traffic sites, covering I/O tuning, kernel isolation, and true resource dedication on CentOS 6.
Stop letting Apache eat your RAM. Learn how to deploy Nginx as a reverse proxy to handle thousands of concurrent connections with minimal latency. A guide for 2012's performance-obsessed sysadmins.
Is your "scalable" cloud instance stalling on database queries? In 2011, the bottleneck isn't CPU—it's Disk I/O. We analyze the latency crisis in virtualized storage and why local SSD RAID is the only viable path for high-performance hosting in Norway.
Is your 'Cloud' storage choking your database? We analyze the reality of SAN latency, virtualized I/O bottlenecks, and how to tune CentOS 6 for raw throughput in the Nordic infrastructure market.