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।

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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

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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

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Module 2 — Networking & Security Basics

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

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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

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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

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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

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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

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Module 7 — Network Segmentation

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

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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

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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

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Module 10 — Secure Protocols & Encryption

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

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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

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Module 12 — Incident Response & Practical Lab

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

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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)

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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

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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।