Networks can carry a vast number of packets and it's useful when doing packet analysis to be able to select only those you need to see. In this video, learn how to use network filters to focus on specific streams of packets.
- [Narrator] One of the key ways we can improve … our effectiveness when analyzing network data … is to remove a lot of unnecessary packets … and concentrate on just the packets we want. … I've already used the pre-packaged conversation … and http stream filters. … Let's take a brief look now at … how we can manually set filters. … I'll press the expression button to right … of the filter edit box. … This causes Wireshark to display a filter window. … The left hand part of the window is a list … of fields I can use, the middle part is the operator … and the right part is the value. … If I type the letters DNS, we see … the list move to the DNS line. … I'll then expand the DNS field … and move down to dns.query.name, … I'll select the operator contains … and I'll enter the value google and press okay. … We can see that the edit box is green … so the expression is valid. … If I put an x at the end, you will see it turn red … to indicate a problem, let's remove that. … And let's apply the filter. …
- 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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