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.…
- 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
- Mark as unwatched
- Mark all as unwatched
Are you sure you want to mark all the videos in this course as unwatched?
This will not affect your course history, your reports, or your certificates of completion for this course.Cancel
Take notes with your new membership!
Type in the entry box, then click Enter to save your note.
1:30Press on any video thumbnail to jump immediately to the timecode shown.
Notes are saved with you account but can also be exported as plain text, MS Word, PDF, Google Doc, or Evernote.