A large file capture in Wireshark can quickly consume all of your system resources. Lisa Bock demonstrates using a ring buffer and a coloring rule to monitor a specific type of traffic.
- [Narrator] When working with Wireshark,…there are times that you want…to capture a specific type of traffic.…For example, that you heard that…there was a new Trojan in the wild,…and it used a specific port.…You could open a packet capture, begin running it,…and watch for that specific type of traffic.…However unless you stop it and put it into a file,…it could start to consume all of your resources.…A better option is to simply use a ring buffer.…
A ring buffer will allow you to monitor the traffic,…and it will continuously drop the traffic into a ring buffer…and you could set up three ring buffers or five…or how many ever you would like to set up,…and it will continuously overwrite those files…while you're monitoring your traffic.…Now in this case, I want to monitor SSDP traffic.…Now if you notice, there are no coloring rules.…I've taken them all off to set us up.…
I'll go to simple service discovery protocol,…and select the protocol.…I'll right click and I'll say colorize with filter.…Now, I'm not going to select a color,…
- Trends in cyberattacks
- Preventing system compromise
- Analyzing packets
- Using Wireshark
- Creating firewall rules
- Baselining a network
- Using capture filters
- Using a ring buffer
- Handling OSI layer attacks
- Identifying attack signatures
- Using VirusTotal
- Handling unwanted TOR activity
Skill Level Intermediate
Troubleshooting Your Network with Wiresharkwith Lisa Bock2h 35m Intermediate
Insights from a Cybersecurity Professionalwith Mike Chapple32m 15s Appropriate for all
1. Deep Packet Analysis
2. Capture Overview
3. Unusual Traffic
4. Case Studies
Next steps1m 30s
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