How to Start Ethical Hacking Projects Using NS2

To create an Ethical Hacking projects using NS2 (Network Simulator 2) have involve the replicating for network attacks, defense mechanisms, and security protocols to know and study the vulnerabilities. NS2 is a powerful tool for designing network environments; assign the replication of attack environment and testing countermeasures. Below is a step-by-step guide:

Steps to Start Ethical Hacking Projects Using NS2

Understand Ethical Hacking in NS2

What is Ethical Hacking in NS2?
- Ethical hacking projects in NS2 replicate the different cyberattack like as denial of service (DoS), man-in-the-middle (MITM), eavesdropping, and packet spoofing, beside with validate the security mechanisms like encode, firewalls, and intrusion detection systems (IDS).
Why use NS2 for Ethical Hacking Projects?
- NS2 permits the controlled environments for testing by network vulnerabilities and security mechanisms.
- It delivers the packet-level replication, permits examine of attack and defenses.

Define the Goals of Your Project

Common Objectives:
- Replicate the detailed network attacks such as DoS, DDoS, or MITM.
- Execute and calculate the intrusion detection systems.
- Analysis the effect for encode on attack mitigation.
- Associate the performance parameter metrices such as packet loss, latency, and throughput below the attack environment.

Install NS2

Install NS2 on Linux:

sudo apt-get update

sudo apt-get install ns2

Verify installation:

If % appears, the installation is successful.

Design the Network Topology

Key Components:
- Normal Nodes: Replicate the legitimate users or devices.
- Attacker Nodes: Signify the malicious users for injecting attacks in the network.
- Defender Nodes: It contains the IDS, firewalls, or secures the routers for defender nodes.
Topology Example:
- Several legitimate nodes are transmission through a central router.
- One or more attacker nodes have injecting the malicious congestion.

Create a Basic Ethical Hacking Simulation

Here’s a sample replication script for a DoS Attack scenario:

Example Script:

# Create a Simulator

set ns [new Simulator]

# Trace and NAM Files

set tracefile [open ethical_hacking.tr w]

$ns trace-all $tracefile

set namfile [open ethical_hacking.nam w]

$ns namtrace-all $namfile

# Define Nodes

set client [$ns node]

set server [$ns node]

set attacker [$ns node]

set router [$ns node]

# Create Links

$ns duplex-link $client $router 10Mb 10ms DropTail

$ns duplex-link $server $router 10Mb 10ms DropTail

$ns duplex-link $attacker $router 10Mb 10ms DropTail

# Legitimate Traffic (Client to Server)

set tcp_client [new Agent/TCP]

$ns attach-agent $client $tcp_client

set tcp_sink [new Agent/TCPSink]

$ns attach-agent $server $tcp_sink

$ns connect $tcp_client $tcp_sink

set ftp [new Application/FTP]

$ftp attach-agent $tcp_client

$ftp start

# Malicious Traffic (Attacker to Server)

set udp_attacker [new Agent/UDP]

$ns attach-agent $attacker $udp_attacker

set null_sink [new Agent/Null]

$ns attach-agent $server $null_sink

$ns connect $udp_attacker $null_sink

# Generate Attack Traffic

set attack_traffic [new Application/Traffic/CBR]

$attack_traffic attach-agent $udp_attacker

$attack_traffic set packetSize_ 512

$attack_traffic set rate_ 10Mb

$attack_traffic start 2.0

$attack_traffic stop 8.0

# Finish Procedure

proc finish {} {

global ns tracefile namfile

$ns flush-trace

close $tracefile

close $namfile

exec nam ethical_hacking.nam &

exit 0

}

# Schedule End of Simulation

$ns at 10.0 “finish”

# Run Simulation

$ns run

Simulate Other Ethical Hacking Scenarios

Man-in-the-Middle Attack (MITM):
- Improve the intermediate attacker node among the client and server to seizure the alter packets.
Packet Spoofing:
- Setting the attacker to inject packets by a spoofed source for IP address.
Eavesdropping:
- Replicate attacker seizure packets for examine the eavesdropping.
Distributed Denial of Service (DDoS):
- Increase the several attacker nodes has forwarding the continuously congestion to overcome the server.

Analyze the Results

Metrics to Measure:
- Packet Loss: Associate the packet loss is legitimate and attack congestion.
- Throughput: Estimate the server throughput by the next attacks.
- Latency: Examine the delays caused through the attack.
Trace File Analysis: Use AWK or Python scripts to extract attack-related metrics:

grep “udp” ethical_hacking.tr > attack_analysis.txt

Visualization with NAM: Start the .nam file to follow packet flow and attacks:

nam ethical_hacking.nam

Enhance the Simulation

Intrusion Detection System (IDS):
- Apply IDS to identify the block malicious congestion.

$ns at 3.0 “$router block $attacker”

Encryption:
- Improve the replicated for encode overhead to the legitimate traffic.
Traffic Prioritization:
- Prioritization utilized their congestion for QoS techniques to legitimate congestion done the malicious packets.

Advanced Ethical Hacking Project Ideas

DDoS Mitigation: DDoS attacks examine and replication for the approaches to mitigate.
Firewall Simulation: Validate the design for firewall rules and we block precise the congestion model.
Secure Routing Protocols: Associate the efficiency for secure vs. insecure routing protocols.
IoT Security: Attacks on IoT networks for replicate the validate defenses.
Eavesdropping Detection: Create a mechanism and we find the passive attackers.

Document Your Project

Include:
- It starts with objectives for sample simulates DoS attacks, evaluate defenses.
- Then explain the Network topology.
- It gives the simulation parameters for instance link bandwidth, packet sizes.
- It delivers the outcomes such as graphs for throughput, packet loss, etc.
- Finally, it observations and conclusions.

Feel free to ask for help with specific attack scenarios, defense mechanisms, or customizations in NS2!

In the end, we had explored the basic implementation process on how to execute the Ethical hacking that handles the attackers for the security protocol. If clarification is needed, it will be included in an additional project manual.