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,…
- 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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