dnstracer:tldr:2a584

The command "dnstracer -v ${www-example-com}" is used to trace the DNS (Domain Name System) resolution process for a specific domain name, in this case, "${www-example-com}".

Here's a breakdown of the command:

• "dnstracer" is the name of the command-line tool being used.
• "-v" is an option or flag that stands for "verbose". It instructs dnstracer to provide more detailed information during the DNS resolution process.
• "${www-example-com}" is a placeholder value for the domain name you want to trace. Replace it with the actual domain name you want to investigate.

When you run this command, dnstracer will start the DNS resolution process for the provided domain name. It will display the steps it takes to resolve the domain name, including which DNS servers are being queried and their responses. The verbose flag (-v) ensures that you get additional information and details about each step of the resolution process.