DevOps – Page 4 – ITFROMZERO

Virtualization tutorial - IT technology blog

Mastering virsh: Pro Tips for Managing KVM Virtual Machines via Command Line

By admin June 17, 2026

Learn how to use virsh for professional KVM virtual machine management. This guide covers everything from basic commands to advanced techniques like snapshots, cloning, and CPU Pinning.

Git

Git Rebase –onto: Mastering Professional Git History Surgery

By admin June 17, 2026

Learn how to use git rebase --onto to move feature branches, remove sensitive commits, and optimize Git history like a Senior Developer.

Virtualization

Kasm Workspaces on Ubuntu: Setting Up Browser Isolation and Open-Source Desktop-as-a-Service

By admin June 16, 2026

A complete guide to installing Kasm Workspaces on Ubuntu for open-source Browser Isolation and Desktop-as-a-Service. An effective security solution for remote DevOps teams — easy to deploy and free with the Community Edition.

Monitoring

Comprehensive MongoDB Monitoring with Prometheus Exporter and Grafana: Replica Set, Connection Pool, Slow Queries

By admin June 16, 2026

A guide to setting up comprehensive MongoDB monitoring with Prometheus mongodb_exporter and Grafana. Focused on the 3 most common production issues: Replica Set health, Connection Pool exhaustion, and Slow Operations — with real-world PromQL queries and a tiered alert strategy to avoid alarm fatigue.

Security

How to Use Canarytokens for Early Intrusion Detection: Setting Traps in Files, URLs, and Emails

By admin June 16, 2026

Canarytokens is a technique for planting information traps inside files, URLs, and emails to detect hackers the moment they access sensitive data — receiving instant alerts with IP address and timestamp. A step-by-step practical guide: creating tokens and embedding them in fake credential files, .env files, Word documents, and DNS config on Linux servers.

Artificial Intelligence tutorial - IT technology blog

Building an Intelligent Alert System with LLM: Automatically Classifying and Summarizing Prometheus Alerts to Reduce Alert Fatigue

By admin June 15, 2026

A hands-on guide to building a Prometheus alert classification and summarization system using LLM, helping SysAdmins escape alert fatigue. Compares rule-based, ML, and LLM approaches, with a complete Python webhook receiver.

Database

SQLite in Production: Effortless Real-time Backup with Litestream

By admin June 15, 2026

Stop worrying about data loss with SQLite. Learn how to use Litestream to automatically back up your database to Cloudflare R2/S3 in real time, giving your production application rock-solid data protection.

Monitoring

Monitoring Every Linux Command: Snoopy Logger and Grafana Loki Solution

By admin June 15, 2026

Forget .bash_history. Here is how to use Snoopy Logger and Grafana Loki to monitor every user action on Linux professionally and securely.

Centos

Installing Node.js and PM2 on CentOS Stream 9: Secrets to Keeping Your App Alive at 2 AM

By admin June 14, 2026

Learn how to install Node.js LTS and configure PM2 professionally on CentOS Stream 9. This guide helps your application auto-start, manage logs effectively, and optimize server performance.

Monitoring

Grafana Mimir: An ‘Infinite’ Prometheus Metrics Storage Solution on Object Storage

By admin June 14, 2026

Running out of disk space due to Prometheus? Discover how to install Grafana Mimir for long-term metrics storage on Object Storage. A cost-effective, high-performance solution for DevOps.