This public account is maintained by Xiaotianguo and friends, regularly publishing widely-read original technical articles. We focus on operations transformation and accompany you throughout your operations career, growing together happily.
This guide introduces tcpdump, a powerful network packet capture tool, explains its filtering options, and provides numerous command-line examples—from basic interface listening to complex filters for hosts, ports, protocols, and saving captures—helping users troubleshoot and analyze network traffic effectively.
VictoriaLogs is a fast, resource‑light, open‑source log database from the VictoriaMetrics ecosystem that offers low RAM and disk usage, multi‑protocol ingestion, powerful LogsQL queries, and flexible deployment options ranging from single‑node binaries to Docker and clustered setups.
This guide explains what Helm is, its core concepts of charts and releases, how to install and upgrade Helm across platforms, use it in CI/CD pipelines, and leverage essential Helm commands and chart repositories to streamline Kubernetes application deployment and management.
The talk outlines the AI+ era's digital ecosystem, traces the evolution from traditional AI to Agentic AI, examines emerging AI Agent technologies, and shares concrete enterprise‑level development practices, frameworks, and governance strategies for financial industry deployments.
This guide introduces nvitop, an interactive NVIDIA‑GPU process viewer and resource manager, explains its key features, shows how to install it via uvx/pipx, demonstrates basic device and process commands as well as the real‑time monitoring mode, and provides troubleshooting tips for common issues.
This guide walks you through using Linux log tools such as last, lastb, grep, and sshd_config to identify suspicious logins, trace malicious IPs, and apply immediate remediation steps for compromised servers, targeting ops engineers and developers.
In the fast‑changing world of Kubernetes and AI, operations professionals must cultivate five compound abilities—communication, problem‑solving, ownership, stress handling, and continuous improvement—to transform technical expertise into lasting career growth and higher compensation.
Kite is a modern, lightweight Kubernetes dashboard built with Go and React that offers real‑time metrics, multi‑cluster support, and enterprise‑grade security, and this guide explains its features, Helm or YAML installation methods, service exposure via LoadBalancer or Ingress, and post‑deployment setup.
This article introduces six core AI agent paradigms—Prompt Chain, Routing & Handoff, Parallelization, Tool Use, ReAct, and Multi‑Agent—explaining their concepts, real‑world analogies, and practical examples for enhancing efficiency and intelligence in operational workflows.
This guide explains how to view Kubernetes certificates, check their expiration dates with kubeadm, renew them when needed, restart kubelet services, verify the renewal, and automate the whole process with a Bash script.
