Focused on sharing DevOps, Kubernetes, Linux, Docker, Istio, microservices, Spring Cloud, Python, Go, databases, Nginx, Tomcat, cloud computing, and related technologies.
This guide explains how to optimize Nginx settings and adjust Linux kernel parameters—such as worker processes, connection limits, caching, HTTP/2, rate limiting, and TCP tweaks—to reliably handle massive traffic spikes while maintaining high availability and performance.
Learn how to secure a Linux server by configuring firewalls with iptables and firewalld, managing user permissions, setting up auditd, applying automatic updates, and deploying intrusion detection tools like OSSEC and AIDE, plus a step‑by‑step response workflow for real‑world attack scenarios.
This guide explains how to monitor memory usage on Linux servers, identify common causes of sudden memory consumption such as leaks, stuck processes, or high load, and provides concrete commands and remediation steps to stabilize system performance.
This guide outlines practical strategies for designing and optimizing network and storage in Kubernetes clusters of over 5,000 nodes, covering overlay networks, IP pool segmentation, bandwidth allocation, load balancing, security policies, distributed storage options, performance tuning, and reliable backup solutions.
To prevent service disruption caused by overly aggressive or sluggish Kubernetes liveness and readiness probes, this guide shows how to implement a custom health‑check script that periodically tests a service endpoint, exits the container on failure, and lets Kubernetes automatically restart the pod.
This article introduces ten essential Kubernetes technologies—including Helm Charts, Operators, Service Mesh, StatefulSets, CRDs, Network Policies, Pod Disruption Budgets, HPA, Persistent Volumes, and Ingress Controllers—explaining their core concepts, key capabilities, and how they improve application reliability, scalability, and security.
This guide walks you through obtaining the Linux kernel source, configuring key options, compiling and installing the kernel, tuning sysctl parameters, and continuously monitoring system metrics to achieve higher performance, stability, and security in high‑load environments.
This guide introduces the open‑source Realtime Voice Cloning project, explains its key features, and provides detailed installation and usage instructions—including environment setup, dependency installation, cloning the repository, and running the demo tool—to enable real‑time voice transformation with Python.
This guide introduces the most commonly used Linux command‑line tools for file handling, content viewing, system monitoring, networking, and permission management, providing clear examples and options to help users quickly become proficient in everyday Linux administration tasks.
This guide explains why Dockerhub mirrors stopped working, lists the unavailable and usable registry URLs, and shows step‑by‑step how to configure Docker with multiple mirror sources to ensure reliable image pulls.
