Here's a tip from my colleague Ed Wilson (the Microsoft Scripting Guy) about how to use PowerShell to check the DNS cache on client computers:
Question: You suspect DNS corruption on several of your client Windows 8.1 computers. How can you check this out?
Answer: Use the Invoke-Command cmdlet to run the Get-DNSClientCache cmdlet on the suspect computers. The following example, runs the Get-DNSClientCache cmdlet on three different computers, and looks for records related to Bing.
Invoke-Command -script {Get-DnsClientCache -Name "*bing*"} -ComputerName c1,c2,c3
NOTE: you will need to run the above command with admin rights
Mitch Tulloch is a nine-time recipient of the Microsoft Most Valuable Professional (MVP) award and a widely recognized expert on Windows administration, deployment and virtualization. For more information see http://www.mtit.com.
Ed Wilson is the bestselling author of eight books about Windows Scripting, including Windows PowerShell 3.0 Step by Step, and Windows PowerShell 3.0 First Steps. He writes a daily blog about Windows PowerShell call Hey, Scripting Guy! that is hosted on the Microsoft TechNet Script Center; for more PowerTips check out the Hey, Scripting Guy! blog.