JBadillo

- 👋 Hola soy El Badi – Ing. T.I. 👨🏼‍🎓
- 👀 Me interesan las redes, el análisis de datos, redes neuronales, todo de la tecnología y tópicos con negocios

[Python Developer @PythonDvz]

🚨 SQL Injection in 10 Seconds!

Never trust user input. 😈
If input goes directly into an SQL query, attackers may manipulate your database.

[Dhanian 🗯️ @e_opore]

4 Concepts to Master System Design Completely - Explained.

1. Scalability & Performance

2. Distributed Systems

3. Databases & Data Management

4. Reliability, Availability & Fault Tolerance

Grab System Design Ebook: https://t.co/1pR2xx1I3p

[Inflictt @Saksham1172975]

Design a Notification Service:

API → Kafka → Validate/Prioritize → Redis rate limiting → User Preferences → Kafka → channel handlers (SMS/Email/Push/IVRS) → multiple vendors → Cassandra tracking. Bulk notifications use Elasticsearch + Query Engine for user targeting.

[Inflictt @Saksham1172975]

Whatsapp(Chat) System Design:

[sysxplore @sysxplore]

Linux file permissions for beginners

[Anastasis Vasileiadis @Anastasis_King]

🐧💻 LINUX CYBERSECURITY COMMANDS 🔥

Essential Linux commands for networking, permissions, logs, DNS, SSH & more. 🛡️⚡

💬 Comment “LINUX” if you want the full cheat sheet!
📌 Save it for later!

#Linux #CyberSecurity #EthicalH4cking #LinuxCommands #CyberKid

[𝐇𝐚𝐦𝐳𝐚 | Networking Guy @Hamzaonchain]

SSH EXPLAINED

[sysxplore @sysxplore]

Bash Scripting Basics

[Anastasis Vasileiadis @Anastasis_King]

🛰️🔍 NMAP — THE ULTIMATE NETWORK RECON CHEAT SHEET

One tool, countless ways to understand your network. 💻🌐 From host discovery and port scanning to service detection, OS identification, NSE scripts and reporting — this cheat sheet brings the essential Nmap workflow together in one place. Perfect for learning, labs and authorized security assessments. 🛡️

💬 Comment NMAP if you want more complete cybersecurity cheat sheets like this.

#Nmap #CyberSecurity #NetworkSecurity #SecurityTools #CyberEducation

[Sweex @sweexx9]

🚨¡BOMBAZO! El ingeniero que creó Claude Code desde cero acaba de soltar un video de 28 minutos que es puro oro:

cómo escribir prompts que realmente entregan resultados brutales.

He visto cursos de 300 dólares que no llegan ni a la suela de lo que él explica en los primeros 10 minutos.

Archivos CLAUDE.md, atajos de memoria, sesiones paralelas y patrones de prompting que casi nadie usa…

Todo en un solo video. Completamente gratis. Sin relleno.

Da igual si eres desarrollador, estás empezando o ya llevas meses con Claude: esto te cambia el juego desde hoy.

Guárdalo. Míralo. Compártelo.

[Ahmedkhan @Ahmed___khaan]

15 Networking Concept. Every layer exists to translate between two things that don't speak the same language.

[Learn Linux with Dan @xmodulo]

Managing disks on Linux goes way beyond df. Here are the useful commands for partitions, disk health, I/O, filesystems, and more 😎👇

Find high-res pdf ebooks with all my Linux related infographics at https://t.co/3t6LHw8TIY

#linux #devops #software #sysadmin #technology

[LetsDefend @LetsDefendIO]

Types of Firewalls

[Python Daily @ThePythonDailyz]

Python Lambda Function

[𝐇𝐚𝐦𝐳𝐚 | Networking Guy @Hamzaonchain]

OSI LAYERS AND PROTOCOLS

[Dhanian 🗯️ @e_opore]

📂 Pharmacy Management System
┃
┣ 📂 Idea
┃ ┣ 📂 Medicine Inventory
┃ ┣ 📂 Prescription Management
┃ ┣ 📂 Sales & Billing
┃ ┣ 📂 Supplier Management
┃ ┗ 📂 Patient Medication Records
┃
┣ 📂 Planning
┃ ┣ 📂 System Architecture
┃ ┣ 📂 Database Design
┃ ┣ 📂 Workflow Mapping
┃ ┣ 📂 Compliance Requirements
┃ ┗ 📂 Scalability Strategy
┃
┣ 📂 Frontend
┃ ┣ 📂 Next.js
┃ ┣ 📂 React
┃ ┣ 📂 TypeScript
┃ ┣ 📂 Tailwind CSS
┃ ┣ 📂 Redux Toolkit
┃ ┗ 📂 Dashboard Components
┃
┣ 📂 Backend
┃ ┣ 📂 Node.js
┃ ┣ 📂 Express.js
┃ ┣ 📂 REST APIs
┃ ┣ 📂 GraphQL
┃ ┣ 📂 Authentication APIs
┃ ┗ 📂 Pharmacy APIs
┃
┣ 📂 Database
┃ ┣ 📂 PostgreSQL
┃ ┣ 📂 MongoDB
┃ ┣ 📂 Prisma ORM
┃ ┣ 📂 Redis Cache
┃ ┗ 📂 Database Replication
┃
┣ 📂 Authentication
┃ ┣ 📂 Clerk
┃ ┣ 📂 Auth.js
┃ ┣ 📂 OAuth
┃ ┣ 📂 MFA
┃ ┗ 📂 Role Based Access Control
┃
┣ 📂 Inventory Management
┃ ┣ 📂 Medicine Catalog
┃ ┣ 📂 Stock Tracking
┃ ┣ 📂 Batch Management
┃ ┣ 📂 Expiry Tracking
┃ ┗ 📂 Barcode Scanning
┃
┣ 📂 Prescription Management
┃ ┣ 📂 Digital Prescriptions
┃ ┣ 📂 Prescription Validation
┃ ┣ ��� Refill Requests
┃ ┣ 📂 Medication History
┃ ┗ 📂 Drug Interaction Checks
┃
┣ 📂 Billing & Sales
┃ ┣ 📂 POS System
┃ ┣ 📂 Invoice Generation
┃ ┣ 📂 Insurance Claims
┃ ┣ 📂 Payment Gateways
┃ ┗ 📂 Sales Reports
┃
┣ 📂 Supplier Management
┃ ┣ 📂 Supplier Database
┃ ┣ 📂 Purchase Orders
┃ ┣ 📂 Goods Receiving
┃ ┣ 📂 Vendor Payments
┃ ┗ 📂 Restocking Automation
┃
┣ 📂 Integrations
┃ ┣ 📂 Hospital Systems
┃ ┣ 📂 EHR Systems
┃ ┣ 📂 Insurance APIs
┃ ┣ 📂 Payment APIs
┃ ┗ 📂 SMS & Email Services
┃
┣ 📂 Security
┃ ┣ 📂 HTTPS
┃ ┣ 📂 Data Encryption
┃ ┣ 📂 Audit Logs
┃ ┣ 📂 Access Control
┃ ┣ 📂 Secure Backups
┃ ┗ 📂 Compliance Monitoring
┃
┣ 📂 Compliance
┃ ┣ 📂 HIPAA
┃ ┣ 📂 GDPR
┃ ┣ 📂 Drug Regulations
┃ ┣ 📂 Controlled Substance Tracking
┃ ┗ 📂 Audit Compliance
┃
┣ 📂 Analytics
┃ ┣ 📂 Sales Analytics
┃ ┣ �� Inventory Reports
┃ ┣ 📂 Prescription Trends
┃ ┣ 📂 Revenue Dashboard
┃ ┗ 📂 Performance Metrics
┃
┣ 📂 AI Features
┃ ┣ 📂 Demand Forecasting
┃ ┣ 📂 Inventory Optimization
┃ ┣ 📂 Prescription Assistant
┃ ┣ 📂 Medicine Recommendations
┃ ┗ 📂 Fraud Detection
┃
┣ 📂 DevOps
┃ ┣ 📂 Docker
┃ ┣ 📂 Kubernetes
┃ ┣ 📂 CI CD Pipelines
┃ ┣ 📂 Monitoring
┃ ┗ 📂 Logging
┃
┣ 📂 Testing
┃ ┣ 📂 Unit Testing
┃ ┣ 📂 Integration Testing
┃ ┣ 📂 API Testing
┃ ┣ 📂 Security Testing
┃ ┗ 📂 Performance Testing
┃
┣ 📂 Deployment
┃ ┣ 📂 AWS
┃ ┣ 📂 Vercel
┃ ┣ 📂 Auto Scaling
┃ ┣ 📂 Disaster Recovery
┃ ┗ 📂 Multi-region Deployment
┃
┣ 📂 Scaling
┃ ┣ 📂 Load Balancing
┃ ┣ 📂 Database Replication
┃ ┣ 📂 Queue Systems
┃ ┣ 📂 CDN
┃ ┗ 📂 Performance Optimization
┃
┗ 📂 Maintenance
┣ 📂 Feature Updates
┣ 📂 Bug Fixes
┣ 📂 Security Patches
┣ 📂 User Support
┗ 📂 System Optimization

Grab the Complete System Architect Ebook:
https://t.co/f1GNQ5Gseq

[𝐇𝐚𝐦𝐳𝐚 | Networking Guy @Hamzaonchain]

POWERSHELL COMMANDS