Learn what firewalls are. Jungwoo goes over the basic functions of a firewall and their types as well as where the latest firewall technologies are headed.
- [Instructor] The internet today resembles the wild west.…Lots of threats exist, and bad guys are always…trying to break in.…To prevent intrusion from the internet into your network,…we need to monitor all the possible entry points…and close them if necessary.…In a computer network, these entry points are called ports,…data packets flow through them.…To monitor port activities, we can use something…called a firewall.…Firewalls can inspect data packets to check…their sources and destinations, which are typically…specific applications running on particular devices…with their own unique addresses.…
You may have heard this address called an IP address,…the acronym IP here stands for internet protocol.…Firewalls can also open and close the ports.…Let's imagine that an incoming data packet…encounters a firewall.…If the packet is headed to a blocked host or a closed port,…the firewall drops it.…Otherwise, it passes the packet onto its destination.…We can categorize firewalls into application firewall,…static packet filtering firewall,…
- 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.