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?

Why Learn Network Security?

Estimated time commitment for the roadmap.

Phases of the Network Security Roadmap

Phase 1: Fundamentals of Networking

Introduction to Networking

OSI and TCP/IP Models

IP Addressing and Subnetting

Network Devices: Routers, Switches, Firewalls

Basics of DNS, DHCP, and NAT

Phase 2: Basics of Network Security

What is Network Security?

CIA Triad (Confidentiality, Integrity, Availability)

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

Security Policies and Access Control

Phase 3: Cryptography Basics

Understanding Encryption and Decryption

Symmetric and Asymmetric Cryptography

Common Encryption Algorithms: AES, RSA, SHA

Digital Certificates and PKI

Phase 4: Firewalls and IDS/IPS

Types of Firewalls: Hardware, Software, Cloud-Based

Configuring Firewalls

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

Popular Tools: Snort, Suricata

Phase 5: Virtual Private Networks (VPNs)

What is a VPN?

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

Configuring VPNs Using OpenVPN

VPN Security Protocols: IPSec, SSL/TLS

Phase 6: Secure Network Design

Network Segmentation and DMZs

VLANs for Traffic Management

Best Practices for Secure Network Architecture

Zero Trust Architecture

Phase 7: Threat Detection and Response

Understanding Cyber Threats and Vulnerabilities

Analyzing Logs and Monitoring Network Traffic

Tools: Wireshark, SolarWinds, Splunk

Incident Response Process

Phase 8: Wireless Network Security

Securing Wi-Fi Networks (WPA3, WPA2)

Wireless Threats: Rogue APs, Eavesdropping

Wireless Security Best Practices

Tools: Aircrack-ng, Kismet

Phase 9: Penetration Testing and Vulnerability Assessment

Understanding Penetration Testing

Tools: Nessus, Nmap, Metasploit

Conducting Vulnerability Scans and Analysis

Writing Penetration Testing Reports

Phase 10: Advanced Network Security Concepts

Network Security Automation

Cloud Security Basics

IoT Network Security

Understanding SD-WAN and SASE

Phase 11: Security Frameworks and Compliance

Overview of Security Standards: ISO 27001, NIST

Implementing Security Controls

GDPR, HIPAA, and Other Compliance Standards

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