ITFROMZERO – Share tobe shared!

Advanced git log: Filter Commits by Author, Time, and File — Visualize Branches with –graph –pretty

By admin July 10, 2026

A practical guide to advanced git log: filter commits by author, time, and code content with -S/-G, visualize branches with --graph --pretty, and automate sprint reports for your team. All from real production experience.

Centos

Deploying Ansible on CentOS Stream 9: Automate Linux Server Management Without Installing Agents

By admin July 10, 2026

A guide to deploying Ansible on CentOS Stream 9 to automate configuration and manage multiple Linux servers simultaneously. Ansible works over SSH — no agent installation, no extra ports — suitable for both beginners and operations teams.

Linux

Linux Filesystem Comparison: ext4, XFS, Btrfs, and F2FS — Choosing the Right One for Each Server Scenario

By admin July 10, 2026

A detailed comparison of four popular Linux filesystems — ext4, XFS, Btrfs, and F2FS — covering performance, key features, and real-world use cases. A practical guide to choosing the right filesystem for each server type: database, storage, general purpose, and flash storage devices.

MySQL

MySQL with Go (Golang): Connecting with database/sql, SQLX, and Optimizing Connection Pool for Microservices

By admin July 10, 2026

A practical guide to connecting MySQL with Go using database/sql and SQLX, complete with an optimized Connection Pool configuration for production microservices — solving too many connections errors and delivering meaningful query performance gains.

Database

Apache CouchDB: Installation, Multi-Directional Replication, and Real-World Offline-First Sync

By admin July 10, 2026

Install CouchDB on Ubuntu in 5 minutes, configure continuous replication between two servers, and handle post-sync conflicts with Python. Includes a guide to integrating PouchDB (~46KB) into your web app and when to choose CouchDB over PostgreSQL or MongoDB.

Linux

systemd-networkd: Minimal Linux Server Network Configuration — Replace NetworkManager with .network Files

By admin July 10, 2026

A guide to switching from NetworkManager to systemd-networkd on a headless Linux server — configure your network with simple .network files that are lighter and boot faster. Includes a 5-minute quick start, static IP and DHCP setup, multi-interface and VLAN configuration, and practical debugging tips from real VPS management experience.

MySQL

MySQL Connections in Python with PyMySQL and mysql-connector-python: Connection Pooling, Prepared Statements, and Safe Transactions to Prevent SQL Injection

By admin July 10, 2026

A practical guide to connecting MySQL in Python using PyMySQL and mysql-connector-python: setting up Connection Pooling to reuse connections, using Prepared Statements to prevent SQL Injection, and handling Transactions safely with a context manager — complete code examples from quick start to production.

Centos

Installing Elasticsearch and Kibana on CentOS Stream 9: Tips for Handling SELinux and Firewalld

By admin July 10, 2026

No more manual log hunting. A guide to installing Elasticsearch and Kibana on CentOS Stream 9, with a focus on proper SELinux and Firewalld configuration for production environments.

Database

PostGIS & PostgreSQL: The ‘Heavy Artillery’ for Geospatial Data Processing

By admin July 10, 2026

Master PostGIS installation and spatial query optimization. Discover why GiST Indexes are the key to processing millions of coordinates in just milliseconds.

MySQL

Connecting MySQL in Node.js with mysql2: Connection Pooling, Prepared Statements, and Transactions

By admin July 9, 2026

A guide to connecting MySQL in Node.js with the mysql2 library the right way, avoiding the common mistakes junior developers make. Learn how to use Connection Pooling for performance optimization, Prepared Statements to block SQL Injection, and Transactions to ensure data integrity when operating across multiple tables simultaneously.

Deploying MySQL 8 on Fedora Server: Production Configuration Guide and SELinux Troubleshooting

Vagrant + KVM/Libvirt: How to Double Your VM Speed on Linux

Gitolite: Ultra-lightweight Git Server Management for 1GB RAM VPS

MongoDB + Python: From Basic CRUD to Advanced Aggregation with PyMongo

Guide to Using git-sizer: “Rescuing” Bloated and Sluggish Git Repositories

Process Python Data Like a Pro with Counter, defaultdict, and deque

VMware vSphere NIOC Configuration Guide: Eliminating Noisy Neighbors and Optimizing Bandwidth

Deploying Metabase with Docker: A Self-Service BI Solution to Replace Manual Data Extraction

Packaging Linux Applications: A Complete Guide to flatpak-builder on Fedora

MySQL 9.0 and VECTOR: Embedding Storage Solution for AI Apps Without a Secondary DB

Advanced git log: Filter Commits by Author, Time, and File — Visualize Branches with –graph –pretty

Deploying Ansible on CentOS Stream 9: Automate Linux Server Management Without Installing Agents

Linux Filesystem Comparison: ext4, XFS, Btrfs, and F2FS — Choosing the Right One for Each Server Scenario

MySQL with Go (Golang): Connecting with database/sql, SQLX, and Optimizing Connection Pool for Microservices

Apache CouchDB: Installation, Multi-Directional Replication, and Real-World Offline-First Sync

systemd-networkd: Minimal Linux Server Network Configuration — Replace NetworkManager with .network Files

MySQL Connections in Python with PyMySQL and mysql-connector-python: Connection Pooling, Prepared Statements, and Safe Transactions to Prevent SQL Injection

Installing Elasticsearch and Kibana on CentOS Stream 9: Tips for Handling SELinux and Firewalld

PostGIS & PostgreSQL: The ‘Heavy Artillery’ for Geospatial Data Processing

Connecting MySQL in Node.js with mysql2: Connection Pooling, Prepared Statements, and Transactions