All articles tagged with SysAdmin
The cloud promise of 'pay for what you use' often turns into 'pay for what you forgot to turn off'. Learn actionable strategies to slash infrastructure costs without sacrificing performance, from kernel tuning to selecting the right virtualization technology.
Default configurations are the enemy of performance. In this deep dive, we strip down Nginx and the Linux kernel to handle high-concurrency API traffic, specifically targeting the unique latency profile of the Nordic infrastructure.
A battle-hardened guide to Kubernetes networking in early 2017. We dissect CNI plugins, debug iptables hell, and explain why underlying VPS latency determines cluster stability.
Latency kills. Learn how to tune the Linux kernel and Nginx for high-throughput API gateways, specifically tailored for the Norwegian network topology available in 2017.
Bottlenecks in your API gateway can cripple your microservices. We dive into kernel-level tuning, Nginx worker optimization, and the infrastructure requirements needed to handle 10k+ requests per second in a pre-GDPR world.
A battle-hardened guide to Pod-to-Pod communication, CNI plugins, and optimizing iptables in 2017. Learn why infrastructure latency makes or breaks your cluster.
A battle-hardened look at Kubernetes networking primitives, CNI choices, and why low-latency infrastructure is non-negotiable for stability. Written for the DevOps engineer debugging iptables at 3 AM.
A battle-hardened guide to tuning your API Gateway for maximum throughput and minimal latency using 2017's best practices. From sysctl kernel tweaks to upstream keepalives, we dissect the stack.
Is your monthly AWS bill spiraling? Learn how to audit zombie processes, leverage KVM virtualization efficiency, and cut bandwidth costs by moving workloads closer to Oslo.
It's March 2017. GitLab just deleted their production DB, and Safe Harbor is dead. If your disaster recovery plan is just a nightly tarball, you are already dead in the water. Here is the battle-hardened guide to survival in the Norwegian hosting landscape.
Stop scheduling 4 AM maintenance windows. This guide details a master-slave replication strategy for migrating MySQL/MariaDB instances to high-performance NVMe storage without killing your uptime.
Default configurations are the enemy of low latency. In this deep dive, we rip apart sysctl.conf, optimize Nginx worker processes, and explain why hardware bottlenecks will render your software tuning useless without NVMe storage.
We benchmark the complexity and performance of Kubernetes 1.5 against Docker Swarm Mode. Learn which orchestrator fits your Norwegian infrastructure stack before the GDPR deadline hits.
Perimeter security is no longer sufficient. Learn how to implement a Zero Trust model using Nginx mTLS, strict SSH 2FA, and segmented networking on KVM VPS, preparing your stack for the upcoming 2018 GDPR enforcement.
The 'perimeter' security model is dead. With GDPR looming and ransomware evolving, reliance on a single firewall is negligence. Here is how to implement a pragmatic Zero-Trust architecture on your VPS right now.
Migrating a live database is open-heart surgery. This guide covers battle-tested strategies using MySQL replication, SSH tunneling, and NVMe-backed storage to eliminate downtime for Norwegian mission-critical systems.
Latency is the silent killer of microservices. In this deep dive, we bypass default settings to tune the Linux kernel, optimize SSL handshakes, and configure Nginx for raw throughput on high-performance KVM infrastructure.
The 'pay-as-you-go' model is often a trap. Learn how to audit your infrastructure, eliminate zombie instances, and leverage Norwegian NVMe VPS to cut TCO by 40% before GDPR hits.
Default Nginx configurations are choking your API performance. We dive deep into kernel tuning, SSL handshakes, and why raw IOPS on your VPS determines your throughput limits.
Hardware fails, and fat fingers destroy databases. In this 2017 guide, we ditch the fluff and build a battle-tested Disaster Recovery plan using MySQL 5.7 replication, lsyncd, and Norwegian data sovereignty principles.
Microservices are adding network hops that kill your latency. In this deep dive, we strip down Nginx and Kernel parameters to handle high-concurrency loads on Norwegian infrastructure.
It is late 2016. The upcoming EU data regulations loom, and standard backups won't save you from a total site failure. Here is a battle-tested guide to reducing RTO using KVM, BorgBackup, and Norwegian infrastructure.
It is late 2016. The Safe Harbor framework is dead. Ransomware is evolving. Merely copying files is no longer a strategy. Here is how to architect a geo-redundant disaster recovery plan using KVM, ZFS, and Norwegian data sovereignty.
When vertical scaling hits the wall, sharding is your only exit. We explore key-based and range-based partitioning, handling cross-shard JOINs, and why low-latency infrastructure is non-negotiable for distributed data layers.
Kubernetes 1.4+ networking isn't magic—it's a complex beast of iptables, CNI plugins, and encapsulation. We dissect the flow of a packet, compare Flannel vs. Calico, and explain why your underlying VPS I/O is the hidden bottleneck for etcd.
The cloud promise of "pay-as-you-go" often turns into "pay-for-what-you-forgot." We dissect the real TCO of hosting, from eliminating zombie instances to leveraging KVM for predictable performance in the Norwegian market.
We benchmark Docker 1.12 Swarm Mode against Kubernetes 1.4 for high-availability Nordic infrastructure. Stop guessing and start architecting for stability.
A battle-hardened look at Kubernetes 1.4 networking. We dissect the CNI, analyze the iptables mess created by kube-proxy, and explain why your underlying VPS infrastructure dictates your cluster's latency.
Nagios checks might turn green, but your users are still seeing 504 errors. It's time to move from binary monitoring to deep instrumentation with Prometheus and ELK on high-IOPS infrastructure.
Is your API latency killing your mobile app retention? We dive deep into Nginx 1.10 tuning, Linux kernel optimization, and TCP stack tweaks on Ubuntu 16.04 to handle massive concurrency. No fluff, just raw performance.