Network Utility has moved again in the latest release of Mac OS X (Yosemite).
It is located in:
Macintosh HD > System > Library > CoreServices > Applications > Network Utility
Alternatively, you can launch the program from the System Report menu (under ‘Window’). From the Apple Menu, click ‘About This Mac…’. Click ‘System Report…’ and from the ‘Window’ menu, click ‘Network Utility’.
Once the Network Utility is running, use the context menu from the dock icon to show the location of the application in Finder or pin it permanently.
Why does it move?
I would like to know why this application keeps moving. For the longest time, Network Utility was located under ‘utilities’ in ‘Applications’. That made sense. Can anyone enlighten me as to why the location of this useful application is continually obfuscated?