In this video, learn how to examine protocol traffic at the packet level.
- [Instructor] The next thing we'll do with Wireshark … is to look at web traffic to see … what it looks like when it's on the wire. … Let's set Wireshark up to capture. … We can now make a blog entry. … Okay, let's stop the capture. … Web browsers are very noisy, … and it's interesting to see what kind of information … you send to Google and others when you use them. … We can scroll down, and at packet 49 … we can see a number of DNS packets … with standard query in their information field … as well as a reference to www.google.com. … Computers normally have both names and IP addresses. … They need to have a numerical address in IP format … so that they can communicate. … The DNS server is where a computer goes … to find this address using the DNS protocol. … If we look at packet 53 … we'll see that we have a standard query response … with 22.214.171.124 in its information field. … If we look at the field named … domain name system in the middle panel, … we can see that this expands and provides more fields. …
- Hackers and the kill chain
- Viruses, spyware, and adware
- Detecting malware with Windows Defender
- Using Windows Firewall and Linux iptables
- Scanning with Nmap
- Monitoring network communications with Netcat
- Combating application-level threats
- Scanning a website to check for vulnerabilities
- Capturing intruders through packet inspection
Skill Level Beginner
Insights from a Cybersecurity Professionalwith Mike Chapple32m 15s Intermediate
1. Why Cybersecurity?
4. Network Scanning
5. Network Connections
6. Vulnerability Scanning
7. Web Applications
8. Monitoring Packets
Next steps1m 27s
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