Your Comprehensive Guide to Network Security

Learn to protect, secure, and safeguard networks from cyber threats with this structured roadmap.

Basic overview

What is Network Security?

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Why Learn Network Security?

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Estimated time commitment for the roadmap.

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Phases of the Network Security Roadmap

Phase 1: Fundamentals of Networking

Introduction to Networking

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OSI and TCP/IP Models

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IP Addressing and Subnetting

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Network Devices: Routers, Switches, Firewalls

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Basics of DNS, DHCP, and NAT

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Phase 2: Basics of Network Security

What is Network Security?

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CIA Triad (Confidentiality, Integrity, Availability)

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Types of Network Threats (DDoS, Man-in-the-Middle, etc.)

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Security Policies and Access Control

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Phase 3: Cryptography Basics

Understanding Encryption and Decryption

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Symmetric and Asymmetric Cryptography

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Common Encryption Algorithms: AES, RSA, SHA

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Digital Certificates and PKI

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Phase 4: Firewalls and IDS/IPS

Types of Firewalls: Hardware, Software, Cloud-Based

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Configuring Firewalls

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Intrusion Detection Systems (IDS) vs. Intrusion Prevention Systems (IPS)

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Popular Tools: Snort, Suricata

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Phase 5: Virtual Private Networks (VPNs)

What is a VPN?

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Types of VPNs: Remote Access, Site-to-Site

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Configuring VPNs Using OpenVPN

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VPN Security Protocols: IPSec, SSL/TLS

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Phase 6: Secure Network Design

Network Segmentation and DMZs

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VLANs for Traffic Management

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Best Practices for Secure Network Architecture

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Zero Trust Architecture

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Phase 7: Threat Detection and Response

Understanding Cyber Threats and Vulnerabilities

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Analyzing Logs and Monitoring Network Traffic

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Tools: Wireshark, SolarWinds, Splunk

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Incident Response Process

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Phase 8: Wireless Network Security

Securing Wi-Fi Networks (WPA3, WPA2)

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Wireless Threats: Rogue APs, Eavesdropping

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Wireless Security Best Practices

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Tools: Aircrack-ng, Kismet

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Phase 9: Penetration Testing and Vulnerability Assessment

Understanding Penetration Testing

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Tools: Nessus, Nmap, Metasploit

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Conducting Vulnerability Scans and Analysis

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Writing Penetration Testing Reports

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Phase 10: Advanced Network Security Concepts

Network Security Automation

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Cloud Security Basics

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IoT Network Security

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Understanding SD-WAN and SASE

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Phase 11: Security Frameworks and Compliance

Overview of Security Standards: ISO 27001, NIST

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Implementing Security Controls

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GDPR, HIPAA, and Other Compliance Standards

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