A Simple Guide To Network Traffic Analysis - TechDogs

Network Traffic Analysis (NTA) is a method of monitoring network resources, availability and activity to identify anomalies. Read on to know how it works!

1. Introduction to Network Traffic Analysis Understanding network traffic is crucial for maintaining secure and efficient digital environments. This presentation will provide an overview of key concepts, tools, and techniques for analyzing network data to identify anomalies and potential threats. by Sophia Johnson

2. Understanding Network Traffic Data Packets Network traffic is composed of data packets that contain information traveling between devices on a network. Protocols Different protocols, such as TCP/IP, govern how this data is transmitted and interpreted. Patterns Analyzing network traffic patterns can reveal insights about network usage, efficiency, and potential security issues.

3. Packet Capture and Analysis 1 Packet Sniffing Capturing network packets using tools like Wireshark or tcpdump. 2 Packet Inspection Analyzing the contents of packets to understand the data being transmitted. 3 Traffic Monitoring Continuously observing network traffic patterns for anomalies or suspicious activity.

4. Common Network Protocols TCP/IP The fundamental protocols that enable communication on the internet. HTTP/HTTPS Protocols for web browsing and secure data transmission. DNS The protocol that translates domain names to IP addresses. SMTP The protocol used for email transmission and delivery.

5. Identifying Anomalies and Threats 1 Unusual Traffic Patterns Detecting spikes in bandwidth usage, sudden changes in protocols, or unexpected connections. 2 Known Attack Signatures Identifying network activity that matches the characteristics of common cyber threats. 3 Suspicious Endpoints Monitoring communication with unfamiliar or blacklisted IP addresses or domains. 4 Unauthorized Access Attempts Detecting brute-force attacks, port scans, or other signs of unauthorized access.

6. Tools for Network Traffic Analysis Wireshark Powerful packet capture and analysis tool. Splunk Comprehensive platform for log and data analysis. Nagios Widely used network monitoring and alerting system. tcpdump Command-line tool for capturing and analyzing network traffic.

7. Interpreting Network Traffic Data Bandwidth Utilization Identify high-bandwidth applications or users. Protocol Distribution Understand the types of network traffic present. Endpoint Communication Detect unusual connections or data transfers. Trend Analysis Recognize patterns and changes over time.

8. Implementing Network Traffic Monitoring Data Collection Capture network traffic data from various sources. Data Analysis Process and interpret the collected data. Alert Generation Identify and notify of anomalies or potential threats. Continuous Improvement Refine monitoring and analysis processes over time.