In this recipe, we will see how to troubleshoot DNS performance-related issues like slow responses. We will see how Wireshark can be used to analyze such issues.
Troubleshooting DNS performance
Getting ready
DNS performance is measured by utilizing the timestamps on DNS request and response packets. In order to measure the performance, Wireshark should be connected and capture the DNS packets as close as possible to the client.
How to do it...
How will you know that this is the problem?
- When you are browsing the internet and getting very slow responses, perform the following...