NETWORK SNIFFING TECHNIQUES

A COMPREHENSIVE REVIEW

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KRISHNESH SINGH #38

INTRODUCTION

• Modern computing relies on network communication.
• Network sniffing's role in troubleshooting and security.
• Importance of addressing security challenges.

NETWORK SNIFFING TECHNIQUES

• Passive vs. active network sniffing techniques.
• Passive: Hub-based sniffing and Switch port mirroring.
• Active: ARP poisoning and DNS spoofing.

PASSIVE SNIFFING TECHNIQUES

• Hub-based sniffing captures all traffic through a hub.
• Switch port mirroring duplicates specific port traffic.
• Advantages: Non-intrusive.
• Limitations: Hub-based sniffing outdated, switch port mirroring limited by switch capabilities.

ACTIVE SNIFFING TECHNIQUES

• ARP poisoning redirects traffic via falsified ARP messages.
• DNS spoofing redirects traffic by manipulating DNS responses.
• Risks: Unauthorized access, data interception.
• Slide 6: Network Sniffing Tools

ESSENTIAL ROLE OF TOOLS IN NETWORK SNIFFING.

• Wireshark: Captures and analyzes network traffic.
• tcpdump: Command-line packet analyzer for Unix-like systems.
• Snort: Intrusion detection and prevention system with packet analysis capabilities.

COUNTERMEASURES

• Mitigating network sniffing risks.
• Encryption ensures intercepted data remains unreadable.
• Network segmentation limits attack scope.
• IDS/IPS systems detect and prevent attacks.
• Port security prevents unauthorized device access.
• Regular updates and patches for security.
• Security best practices enhance defense against network sniffing.

ETHICAL CONSIDERATIONS

• Ethical implications of network sniffing.
• Authorization required before any network sniffing.
• Legal consequences of unauthorized network sniffing.

CONCLUSION

• Network sniffing's dual role: valuable tool and security threat.
• Emphasize responsible and ethical use of network sniffing techniques.

THANK YOU