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0b1d1

@_0b1d1

Nov 9, 2025 • 9 tweets • 5 min read • Read on X

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🚀 Diving into Docker & Containerization My Learning Highlights!

Over the past few days, I’ve been exploring Docker, one of the most powerful tools in modern software deployment. 🐳

📨 Comment “PDF” for complete guide

Here’s what you’ll learn so far:

🔹 Containerization: Packages apps with all dependencies, ensuring they run consistently across environments.
🔹 Containers vs Virtual Machines: Containers are lightweight (MBs vs GBs), start instantly, and are perfect for microservices.

🔹 Docker Architecture: Composed of the Docker Daemon, Client, and Registries.
🔹 Docker Workflow: build → run → push — the essential cycle for deploying applications.
🔹 Networking & Volumes: Allow containers to communicate efficiently and persist data seamlessly.

I’ve also put together a detailed PDF summary covering Docker fundamentals, networking, volumes, and essential commands a handy guide for quick reference

#Docker #DevOps #Containerization #LearningInPublic #Virtualization #SoftwareEngineering #CloudComputing

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More from @_0b1d1

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@_0b1d1

Jan 5

🔐 Web Security Testing Guide
A Practical, Defensive Approach to Securing Web Applications

This guide presents a structured methodology for identifying and reducing security risks in web applications. Written by Eoin Keary

💌Comment PDF for Guide

🌐 Scope

🧩 Web Security Fundamentals
🧠 Testing Methodology
🐞 Common Web Vulnerabilities
🔐 Authentication & Session Security
⚙️ Secure Configuration & Deployment
📝 Reporting & Remediation

Read 15 tweets

0b1d1

@_0b1d1

Jan 5

The Hacker Playbook 🎭
A Practical Guide to Offensive Security Thinking (Ethical & Defensive)

The Hacker Playbook explains how real attackers think, plan, and operate so defenders and security teams can better detect, prevent and respond to attacks.

📮Comment PDF for Guide

Core Focus 🎯

🧠 Attacker Mindset — target selection, recon, attack surfaces, chaining weaknesses
🔁 Pentesting Lifecycle — scoping → enumeration → exploitation → post-exploitation → reporting

🛠️ Real-World Security — tool limits, automation vs manual testing, misconfigs, common enterprise flaws
🛡️ Defensive Insights — anticipate attackers, improve detection, harden systems, red/blue teamwork

Read 15 tweets

0b1d1

@_0b1d1

Jan 2

CCNA – Core Networking Foundation

CCNA (Cisco Certified Network Associate) is one of the best entry certifications for Networking, IT and Cybersecurity.

📩Comment PDF for Guide

It focuses on how real-world enterprise networks work not just commands building the mindset needed to troubleshoot, secure and scale networks.

📘 What CCNA Covers

🌐 Networking Fundamentals – OSI & TCP/IP models, how data flows
🔢 IP Addressing & Subnetting – IPv4, IPv6, CIDR, subnet design
🔁 Routing & Switching Basics – LAN/WAN, static & dynamic routing

Read 21 tweets

0b1d1

@_0b1d1

Jan 1

🐧 Linux Server Fundamentals

Core skills for installing, configuring, managing, and troubleshooting Linux servers in real-world environments. This foundation supports careers in system administration, DevOps, cloud and cybersecurity.

📩Comment PDF for Guide

🔑 Key Topics

🏗️ Linux architecture & filesystem
👥 Users, groups & permissions
📦 Package management (apt / yum / dnf)
⚙️ Processes & services (systemd)

🌐 Networking (IP, DNS, SSH, firewall)
💽 Disk & filesystem management (LVM, mount)
🧾 Logs, troubleshooting & performance
🔐 Security basics (sudo, SELinux / AppArmor)
📊 Backup & monitoring

Read 19 tweets

0b1d1

@_0b1d1

Dec 30, 2025

FortiGate Firewall Lab — Hands-On Guide

A practical, step-by-step guide to building and securing a FortiGate firewall lab from VMware deployment to advanced security policies.

💌Comment PDF for full Guide

Coverage:
•🖥️ FortiGate deployment on VMware
•🌐 Interfaces, static routing & IPv4 policies
•🛡️ DoS protection & policy optimization
•🔎 Web & social media filtering
•🔐 Site-to-site IPsec VPN
•🧩 VLANs, zones & simplified policies
•✅ Lab security best practices

Read 17 tweets

0b1d1

@_0b1d1

Dec 25, 2025

Terraform Full Guide From Basics to Advanced Automation

Terraform is a must-have skill for DevOps and Cloud Engineers. This guide takes you from basics to real-world infrastructure automation with confidence.

💌 PDF available for the full guide

🔧 What you’ll learn

• ⚙️ Terraform fundamentals & workflow
• 🧩 Providers, resources & dependencies
• 🗂️ State management & remote backends
• 🔁 Variables, outputs & reusable modules
• 🌍 Environments & best practices
• ☁️ Real-world cloud use cases

Read 17 tweets

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