Analyzing DNS with Wireshark
tons of info at www.thetechfirm.com
When you get to the task of digging into packets to determine why something is slow, learning how to use your tool is critical. I’ve been using and training analysts how to use Wireshark for over 10 years, and delight in sharing tips and tricks to make your life simpler.
As a protocol analyst, you should be aware of which protocols your application use. When I state that point many people reckon of the usual protocols, like IPv4, IPv6, TCP, TCP, HTTP, etc. Not only should you be aware of which protocols your application uses but you should also consider other additional protocols that your application depends on for proper operation.
.. Read the rest at networkcomputing.com