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Resolving Git Conflicts the Easy Way with Meld: A Complete Mergetool Configuration Guide

By IT From Zero July 15, 2026

Don't let Git conflicts slow you down. This step-by-step guide covers how to install and use Meld as your mergetool for a more visual, safe, and professional way to resolve code conflicts.

Artificial Intelligence tutorial - IT technology blog

Building a ‘Self-Service’ PostgreSQL AI Agent with PandasAI: From 1 Hour to 1 Minute

By IT From Zero July 15, 2026

Don't let SQL waste your time. Discover how to combine PandasAI and PostgreSQL to build an automated data analysis system, reducing your daily reporting workload by 70%.

Docker

Securing Docker Containers with Authentik Forward Auth: Add SSO and MFA in 10 Minutes

By IT From Zero July 15, 2026

Turn insecure Docker applications into a secure system with SSO and MFA by using Authentik as Forward Auth via Traefik.

Git

Level Up Your Git with Git-extras: How I ‘Hack’ My Daily Command-Line Productivity

By IT From Zero July 15, 2026

Discover how Git-extras helps you manage repositories more efficiently. This guide covers installation and professional commands to optimize developer workflows.

VMware

Fixing CPU Ready Time Issues: Why Are VMware VMs Lagging Despite Low CPU Usage?

By IT From Zero July 15, 2026

Is your VMware VM slow despite low CPU usage? Learn how to diagnose CPU Ready Time (%RDY) and practical vCPU optimization tips for a smoother system.

Fedora

User Management on Fedora: Time to Say Goodbye to /etc/passwd for systemd-homed

By IT From Zero July 15, 2026

Manage Fedora users more professionally with systemd-homed. A detailed guide on creating LUKS-encrypted users, limiting resources, and ultra-fast data migration.

Python

SQLModel: The ‘2-in-1’ Solution for Cleaning Up the Mess Between SQLAlchemy and Pydantic

By IT From Zero July 15, 2026

Tired of writing duplicate code for Database and API? SQLModel merges SQLAlchemy and Pydantic, cutting boilerplate by 50% and preventing sync errors.

Virtualization

Deploying NVMe-over-Fabrics (NVMe-oF) on Linux: High-Speed Network Storage Setup and Optimization for KVM

By IT From Zero July 14, 2026

A practical guide to deploying NVMe-over-Fabrics (NVMe-oF) over TCP on Linux — from a basic 5-minute setup to performance tuning and KVM infrastructure integration. Covers target and initiator configuration, persistent config, and benchmarking to verify results.

Monitoring

Prometheus Federation: Aggregating Metrics from Multiple Clusters into a Single Global View

By IT From Zero July 14, 2026

Prometheus Federation lets you aggregate metrics from multiple clusters and regions into a single Global Prometheus, enabling infrastructure-wide queries and alerts without installing Thanos or Cortex. This guide covers practical configuration with recording rules and PromQL queries for multi-region environments.

Linux

How to Enable and Configure TCP BBR on Linux Server: Optimize Network Speed and Reduce Latency

By IT From Zero July 14, 2026

TCP BBR is Google's congestion control algorithm, built into Linux since kernel 4.9, offering better throughput and lower latency than the default CUBIC. Activation takes just a few sysctl commands — no reboot required, no application code changes.

Configuring BFD with FRRouting on Linux: Sub-Second Link Failure Detection for OSPF and BGP

Clean Up Stale Remote-Tracking Branches with git remote prune and git fetch –prune

Implementing Single Sign-On (SSO) with Keycloak and Next.js: A Complete OpenID Connect (OIDC) Guide

Enable MySQL Slow Query Log and Use pt-query-digest to Find Database Bottlenecks

MetaGPT with Python Guide: Automate Software Development with Multi-Agent Systems

Configuring SR-IOV on KVM/Proxmox: Share 10GbE NICs with Near Bare-Metal Performance

Docker Autoheal Guide: Automatically Restart Unhealthy Containers

APScheduler in Python: Production-Ready Background Job Scheduling for Backend

How to Reclaim Storage Space (Space Reclamation / UNMAP) on VMware ESXi

How to Use Bitnami Sealed Secrets on Kubernetes: Secure GitOps Secrets Management

Resolving Git Conflicts the Easy Way with Meld: A Complete Mergetool Configuration Guide

Building a ‘Self-Service’ PostgreSQL AI Agent with PandasAI: From 1 Hour to 1 Minute

Securing Docker Containers with Authentik Forward Auth: Add SSO and MFA in 10 Minutes

Level Up Your Git with Git-extras: How I ‘Hack’ My Daily Command-Line Productivity

Fixing CPU Ready Time Issues: Why Are VMware VMs Lagging Despite Low CPU Usage?

User Management on Fedora: Time to Say Goodbye to /etc/passwd for systemd-homed

SQLModel: The ‘2-in-1’ Solution for Cleaning Up the Mess Between SQLAlchemy and Pydantic

Deploying NVMe-over-Fabrics (NVMe-oF) on Linux: High-Speed Network Storage Setup and Optimization for KVM

Prometheus Federation: Aggregating Metrics from Multiple Clusters into a Single Global View

How to Enable and Configure TCP BBR on Linux Server: Optimize Network Speed and Reduce Latency