# Cyber Security Internship Report # task 1: Network Sniffer
Task/Objective:
Build a network sniffer in Python that captures and analyzes network traffic. This project will
help you understand how data flows on a network and how network packets are structure.
Description:
A network sniffer is a tool used to capture and analyze network traffic. By building a network sniffer
in Python, you will gain insights into the structure of network packets, the protocols used, and the
flow of data across a network. This project is ideal for anyone looking to enhance their knowledge of
network security, protocol analysis, and packet inspection.
Key Components:
a. Basic packet capture.
b. Packet analysis.
c. Data visualization.
d. Filtering and searching.
e. Logging and reporting.
Expected Outcomes:
A functional network sniffer that can capture and analyze network traffic.
Enhanced understanding of network protocols and packet structures.
Skills in using Python for network analysis and packet inspection.
Experience in developing tools for network security and monitoring.
Tools and Libraries:
Scapy: A powerful Python library for network packet manipulation.
Steps to Complete the task:
-------------------------------------
1. Create networksniffer.py
2. Insert basic script.
from scapy.all import sniff
# Callback function to process each packet
def packet_callback(packet):
print(packet.summary())
, # Sniff network traffic on the specified interface
def main():
# Replace 'eth0' with your network interface
interface = 'eth0'
print(f"Sniffing on interface {interface}")
sniff(iface=interface, prn=packet_callback, store=0)
if __name__ == "__main__":
main()
3. Give executable permissions.
4. Run the sniffer.
5. Analyze packets
Update the script to include more detailed packet analysis:
Task/Objective:
Build a network sniffer in Python that captures and analyzes network traffic. This project will
help you understand how data flows on a network and how network packets are structure.
Description:
A network sniffer is a tool used to capture and analyze network traffic. By building a network sniffer
in Python, you will gain insights into the structure of network packets, the protocols used, and the
flow of data across a network. This project is ideal for anyone looking to enhance their knowledge of
network security, protocol analysis, and packet inspection.
Key Components:
a. Basic packet capture.
b. Packet analysis.
c. Data visualization.
d. Filtering and searching.
e. Logging and reporting.
Expected Outcomes:
A functional network sniffer that can capture and analyze network traffic.
Enhanced understanding of network protocols and packet structures.
Skills in using Python for network analysis and packet inspection.
Experience in developing tools for network security and monitoring.
Tools and Libraries:
Scapy: A powerful Python library for network packet manipulation.
Steps to Complete the task:
-------------------------------------
1. Create networksniffer.py
2. Insert basic script.
from scapy.all import sniff
# Callback function to process each packet
def packet_callback(packet):
print(packet.summary())
, # Sniff network traffic on the specified interface
def main():
# Replace 'eth0' with your network interface
interface = 'eth0'
print(f"Sniffing on interface {interface}")
sniff(iface=interface, prn=packet_callback, store=0)
if __name__ == "__main__":
main()
3. Give executable permissions.
4. Run the sniffer.
5. Analyze packets
Update the script to include more detailed packet analysis:
