Learn about the security-relevant characteristics of packet capture data and how it can contribute to improving network security.
- [Instructor] One of the primary sources of network data…is message exchanged between applications connected…through a computer network.…These messages called packets enable the network…applications to collaborate to accomplish…a particular task.…For example, sending an email.…Packets consist of headers, trailers and application data.…The headers and trailers contain information necessary…to deliver packets from one network device to the other.…
The network on which the packets originate and are received…is called the host.…When a large number of devices are communicating…to each other, it's important to have strict rules.…Protocols are documented agreements dictating…how different parties in a network are expected…to interact with each other.…Imagine this.…You're building your own custom web browser,…and inadvertently introduce an error in the code…affecting a web page request.…
When the web browser sends a request to the web server,…the web server will recognize that it's a bad request.…So following the protocol, the server will subsequently…
- Network security concepts
- The basic functions of a firewall
- Intrusion detection and prevention systems
- Using network data to improve security
- Using log servers to collect data
- Collecting application data
- Collecting OS data
- Network forensics
- Network security visualization
Skill Level Intermediate
1. Network Security Review
2. Network Data Sources
3. Data Collection
4. Data Analytics
Network forensics2m 25s
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