Wireshark is a packet sniffer and analysis tool that can be resource intensive. To optimize packet capture, Lisa Bock covers some options, along with using CLI tools to capture traffic, and demonstrates using Netsh, a command line packet capture tool.
- [Instructor] Wireshark is software…that's a packet sniffer and analysis tool.…Because Wireshark has a rich graphical interface,…it may need additional processing…that might use CPU and GPU as well as memory over time.…This can lead to memory errors…and system performance issues.…Using Wireshark to capture packets…may have an unexpected drain on your system resources.…Wireshark and several other software packet analysis tools…are free and work with most operating systems.…
However, there are also some commercial sniffer products…that are more robust.…In addition, there are dedicated appliances…that are designed for optimal capture capture…and minimal packet loss.…Some things you can do to optimize packet capture…is when capturing during troubleshooting…or while baselining, quit any unnecessary programs.…You could also use a ring buffer…if you're simply monitoring for a certain type of traffic…but to really optimize packet capture,…you can use a command line interface tool.…
In Unix or Unix-like operating systems…
- Tapping into the network
- Baselining the network
- Troubleshooting to discover the cause of a slow network
- Merging traffic
- Sanitizing packet captures
- Capture engines
- Optimizing packet captures
- Basic and advanced IO graphs
- TCP stream graphs
Skill Level Intermediate
Troubleshooting Your Network with Wireshark (2015)with Lisa Bock2h 35m Intermediate
Learning Cryptography and Network Securitywith Lisa Bock1h 45m Intermediate
Enhance your skills1m 5s
1. Tapping into the Stream
2. Solving Network Problems
3. Capture Engines and Wi-Fi
4. Command Line Capture
5. IO and Stream Graphs
What's next?1m 13s
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