Fredric News

Tag: SystemOps

  • Kubernetes CoreDNS Corefile Customization

    💡 Kubernetes CoreDNS Corefile Customization — Executive Summary Technical architectural analysis, practical configuration manifests, and deployment instructions for Kubernetes CoreDNS Corefile Customization. Docs About resolv.conf References and Guidelines (NOTE) CoreDNS operation when using systemd-resolved on host HostNode: systemd-resolved is fixed as /etc/resolv.conf = 127.0.0.53loopback address. The actual resolve defined in /etc/systemd/resolved.conf is /var/run/systemd/resolve/resolv.conf. Kubelet: Default…

  • Jenkins CI/CD Archi: Distributed Agent

    💡 Jenkins CI/CD Archi: Distributed Agent — Executive Summary Technical architectural analysis, practical configuration manifests, and deployment instructions for Jenkins CI/CD Archi: Distributed Agent. Operation Pipelines Credential Pipeline Sample Container Debugging groovy Copy // container내 breakPoint에서 아래 문구 추가 input message: “pod를 유지 중입니다. 디버깅 후 ‘Proceed’를 누르세요.” Scripting groovy Copy // 히스토리 제거 def…

  • jq CLI Sheet: JSON Data Filtering & Slicing

    💡 jq CLI Sheet: JSON Data Filtering & Slicing — Executive Summary Technical architectural analysis, practical configuration manifests, and deployment instructions for jq CLI Sheet: JSON Data Filtering & Slicing. Exec main bash Copy #json to pretty $jsonSTDOUT | jq ” echo ‘\”foo\”:\”bar\”‘ | jq ” curl http://foo.bar.com/api/v1/test | jq ” #배열 내 특정 순번을…

  • Webpack Module Federation: React

    💡 Webpack Module Federation: React — Executive Summary Technical architectural analysis, practical configuration manifests, and deployment instructions for Webpack Module Federation: React. Common Enable dynamic loading: bootstrap.tsx ts Copy import React from ‘react’; import { createRoot } from ‘react-dom/client’; import App from ‘./App’; const container = document.getElementById(‘root’); if (container) { const root = createRoot(container); root.render(…

  • OPNsense Unbound DNS: Ad-blocking

    💡 OPNsense Unbound DNS: Ad-blocking — Executive Summary Technical architectural analysis, practical configuration manifests, and deployment instructions for OPNsense Unbound DNS: Ad-blocking. References and Guidelines (NOTE) System Required: DNS Port forwarding Private domain registration References and Guidelines (NOTE) List instructing to allow the response even if the DNS query result includes a private IP address…

  • OPNsense Firewall XML Config Automated Git

    💡 OPNsense Firewall XML Config Automated Git — Executive Summary Technical architectural analysis, practical configuration manifests, and deployment instructions for OPNsense Firewall XML Config Automated Git. 🔗 https://docs.opnsense.org/manual/git-backup.html Step0. Preparation (Github) Create SSH Keypair bash Copy mkdir opnsense ssh-keygen -f ~/opnsense/opnsense # 공개키 클립보드에 복사 cat ~/opnsense/opnsense.pub | pbcopy # 개인키 클립보드에 복사 cat ~/opnsense/opnsense…

  • cURL CLI Sheet: HTTP Headers & REST API

    💡 cURL CLI Sheet: HTTP Headers & REST API — Executive Summary Technical architectural analysis, practical configuration manifests, and deployment instructions for cURL CLI Sheet: HTTP Headers & REST API. Exec bash Copy #curl test curl -sSL -o /dev/null -D – ${URL} #download 받기(wget) curl -LO ${URL} curl -L ${URL} -o ${FILENAME} #response Header 포함…

  • AI Agent Harness Engineering: ainit CLI

    💡 AI Agent Harness Engineering: ainit CLI — Executive Summary Technical architectural analysis, practical configuration manifests, and deployment instructions for AI Agent Harness Engineering: ainit CLI. Overview Harness is an architectural tool that utilizes Claude Code’s agent team system to break down and coordinate complex tasks into specialized agent teams. When you say “Configure the…

  • Linux free Command Analysis: Buffers, Cache

    💡 Linux free Command Analysis: Buffers, Cache — Executive Summary Technical architectural analysis, practical configuration manifests, and deployment instructions for Linux free Command Analysis: Buffers, Cache. bash Copy free -h #사람이 보기 편한 단위 RAM unused Free memory: Simply memory that is not currently being used for any tasks. Available memory: Memory that is actually…

  • Google Play Books Format Integration: ADE

    💡 Google Play Books Format Integration: ADE — Executive Summary Technical architectural analysis, practical configuration manifests, and deployment instructions for Google Play Books Format Integration: ADE. 🔗 https://seong6496.tistory.com/557 Preparation Download PDF or ePub Google Play Books Adobe digital edition bash Copy brew install –casks adobe-digital-editions Solutions – Ebook – Digital Editions – FAQ Caliber latest…