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Courses / Tech Academy / Network Security
📘 Beginner ⏱ 30 Hours

Network Security

Course Overview

Network Security (30h) হলো একটি Practical & Career-Focused Course, যেখানে Network ও IT Infrastructure secure, monitor এবং manage করার essential cybersecurity skills শেখানো হবে।

এই course-এ Networking Fundamentals, Network Threats, Firewalls, VPN, Secure Wi-Fi, Network Segmentation, IDS/IPS, Access Control, Network Monitoring, Encryption, Secure Protocols, Zero Trust এবং Incident Response শেখানো হবে।

Controlled Lab Environment-এর মাধ্যমে learners network security configuration, monitoring ও troubleshooting-এর practical understanding অর্জন করবে এবং Defensive Cybersecurity-এর strong foundation তৈরি করবে।

What You Will Learn

✔ Network Security Fundamentals

✔ TCP/IP & Network Security

✔ Network Threats & Attacks

✔ Firewall Configuration Concepts

✔ Network Access Control

✔ VPN Fundamentals

✔ Secure Wi-Fi

✔ Network Segmentation

✔ VLAN Security

✔ IDS & IPS

✔ Network Monitoring

✔ Traffic Analysis

✔ Secure Network Protocols

✔ Encryption & TLS

✔ DNS Security

✔ Network Authentication

✔ Zero Trust Fundamentals

✔ Network Hardening

✔ Incident Response

✔ Network Security Best Practices

Course Curriculum

Module 1 — Network Security Fundamentals

  • What is Network Security?
  • Network Security Goals
  • CIA Triad
  • Network Security Architecture
  • Security Policies
  • Network Security Challenges
  • Common Security Controls

Module 2 — Networking & Security Basics

  • OSI Model
  • TCP/IP Model
  • IP Addressing
  • IPv4 & IPv6 Overview
  • TCP & UDP
  • Ports & Services
  • DNS
  • DHCP
  • Network Security Considerations

Module 3 — Network Threats & Attacks

  • Common Network Threats
  • Malware & Botnets
  • DoS/DDoS Concepts
  • Man-in-the-Middle (MITM) Concepts
  • Spoofing
  • Sniffing Concepts
  • Rogue Devices
  • Network Reconnaissance Concepts
  • Defensive Countermeasures

Module 4 — Firewalls & Access Control

  • What is a Firewall?
  • Network Firewall
  • Host-Based Firewall
  • Firewall Rules
  • Inbound & Outbound Traffic
  • Access Control Lists (ACL)
  • Stateful vs Stateless Firewall
  • Firewall Best Practices

Module 5 — VPN & Secure Remote Access

  • What is VPN?
  • VPN Use Cases
  • Remote Access VPN
  • Site-to-Site VPN
  • IPsec Fundamentals
  • Secure Remote Access
  • VPN Security Best Practices

Module 6 — Wireless Network Security

  • Wi-Fi Security Fundamentals
  • WPA2 & WPA3
  • Wireless Encryption
  • Secure Wi-Fi Configuration
  • Guest Network
  • Rogue Access Points
  • Wireless Security Risks
  • Secure Wi-Fi Best Practices

Module 7 — Network Segmentation

  • What is Network Segmentation?
  • VLAN Basics
  • VLAN Security
  • Subnetting & Segmentation
  • DMZ
  • Micro-Segmentation Concepts
  • Network Isolation
  • Segmentation Best Practices

Module 8 — IDS & IPS

  • What is IDS?
  • What is IPS?
  • Network-Based IDS
  • Host-Based IDS
  • Signature-Based Detection
  • Anomaly-Based Detection
  • Security Alerts
  • IDS/IPS Deployment Concepts

Module 9 — Network Monitoring & Traffic Analysis

  • Network Monitoring Fundamentals
  • Logs & Events
  • Network Traffic
  • Packet Analysis Basics
  • Wireshark Introduction
  • Network Performance Monitoring
  • Security Monitoring
  • Alert Management

Module 10 — Secure Protocols & Encryption

  • HTTP vs HTTPS
  • SSH
  • TLS/SSL
  • Secure File Transfer
  • Encryption Basics
  • Symmetric & Asymmetric Encryption
  • Digital Certificates
  • Secure Communication

Module 11 — Network Hardening & Zero Trust

  • Network Hardening
  • Secure Device Configuration
  • Password & Authentication Policies
  • Least Privilege
  • Patch Management
  • Zero Trust Fundamentals
  • Identity-Based Access
  • Security Best Practices

Module 12 — Incident Response & Practical Lab

  • Network Security Incident
  • Detection
  • Analysis
  • Containment
  • Recovery
  • Incident Documentation
  • Security Troubleshooting
  • Controlled Network Security Lab
  • Final Security Assessment

Course Features

✅ 30 Hours Live Class

✅ বাংলা + English Explanation

✅ Intermediate-Level Training

✅ Practical Network Security Learning

✅ Firewall & VPN Concepts

✅ Network Monitoring

✅ Wi-Fi Security

✅ IDS/IPS Fundamentals

✅ Traffic Analysis

✅ Wireshark Hands-on

✅ Network Hardening

✅ Zero Trust Fundamentals

✅ Controlled Security Lab

✅ Real-World Case Studies

✅ Instructor Support

✅ Class Recording (যদি প্রযোজ্য হয়)

✅ Certificate of Completion (যদি প্রদান করা হয়)

Who Can Join?

  • Network Security Beginners
  • CSE & ICT Students
  • Diploma Engineering Students
  • Network Administrators
  • System Administrators
  • IT Support Professionals
  • Cloud Engineers
  • DevOps Professionals
  • Cybersecurity Beginners
  • Software Developers
  • Job Seekers
  • যারা Network Security Career শুরু করতে চান

After Completing This Course

এই কোর্স শেষ করার পর আপনি—

  • Network Security-এর Core Concepts ভালোভাবে বুঝতে পারবেন।
  • TCP/IP, Ports, Protocols ও Network Architecture-এর Security Implications বুঝতে পারবেন।
  • Common Network Threats ও Security Risks শনাক্ত করতে পারবেন।
  • Firewall Rules ও Access Control-এর Fundamentals বুঝতে পারবেন।
  • VPN ব্যবহার করে Secure Remote Access-এর ধারণা অর্জন করবেন।
  • Wi-Fi Network Secure করার Best Practices প্রয়োগ করতে পারবেন।
  • Network Segmentation, VLAN ও DMZ-এর Security Concepts বুঝতে পারবেন।
  • IDS/IPS ও Network Monitoring-এর কাজ বুঝতে পারবেন।
  • Wireshark ব্যবহার করে Basic Network Traffic Analysis করতে পারবেন।
  • HTTPS, SSH, TLS এবং Encryption-এর Fundamentals বুঝতে পারবেন।
  • Network Hardening ও Zero Trust-এর Basic Principles প্রয়োগ করতে পারবেন।
  • Network Security Incident শনাক্ত ও Respond করার Basic Process বুঝতে পারবেন।
  • Advanced Cybersecurity, SOC, Network Defense বা Cloud Security শেখার জন্য Strong Foundation তৈরি করতে পারবেন।