Learn what VPNs are. Jungwoo defines VPNs and shows how to categorize them according to their topology.
- [Narrator] The ideal way of securely communicating…between two different networks is a dedicated connection.…A private line that provides such a connection is,…however, too expensive.…A cheaper alternative is using a public network,…such as the Internet, to connect LANs,…or Local Area Networks.…VPNs, or Virtual Private Networks, use the Internet…to connect the LANs.…To ensure privacy using a public network,…such as the Internet, a VPN encrypts all its data.…
So a VPN is virtually as secure as a private network.…There are three different uses of VPNs.…The most common one is a remote access option, which…allows a user to connect to a far away network…from a client computer and have access to all the resources…in the connected network.…In fact, this makes the user machine virtually…indistinguishable from those in the remote network.…The name VPN largely stems from this common use…of the technology.…
The other usage scenario of VPN is site-to-site.…In this case, two individual networks are connected…via the VPN technology.…
- Identify the goals of network security.
- Distinguish types of firewalls.
- Explain intrusion detection and prevention systems.
- Describe packet capture.
- Collect packet sniffer, IDS, and IPS data.
- Explain how to use machine learning to process network data.
- Use data science to conduct a network forensics investigation.
- Identify data visualization targets and tools.
Skill Level Intermediate
1. Network Security Review
2. Network Data Sources
3. Data Collection
4. Data Analytics
Network forensics2m 25s
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