Info (see the image in the previous section) provides a drop-down menu that lists each of the network interfaces that are built into your Mac. Let’s look at each of the useful tools in Network Utility and how they can be used in troubleshooting. Network Utility’s individual components can also be accessed from the Unix command line in Terminal, but that’s “beyond the scope of this course.” Just suffice it to say that if you really want to know the gory details of a command, you can type in “man name-of-command” (i.e., man netstat) and not only find out how to access that tool in Terminal, but all of the many options available. The last way? Just ask Siri - say “Launch Network Utility” and the app is immediately on your screen. The second is even easier click the Spotlight search icon (it looks like a magnifying glass) on the right side of the Mac menu bar, then type in “Network Utility” and press the return key. The first is to go to the Apple Menu, select About This Mac…, click on “System Report”, and then select Network Utility from the Windows menu. There are three much easier ways to find Network Utility and launch it without digging around in hidden folders. System/Library/CoreServices/Applications If Network Utility is no longer in the Utilities folder of the Mac, where is it? Looking at the path to the app, it’s hidden away in: Where In The World Is Carmen Sandiego Network Utility? So where is Network Utility hiding these days, and how can it be used to troubleshoot network problems? Apple put all of these useful tools into a single app called Network Utility, which up until 2014 could be found residing in the Application > Utilities folder. Likewise, traceroute was always useful for finding out where in the long chain of bounces between computer, routers and servers that communications between machines was breaking down. Many old-timers wistfully remember the “fun” of typing in a ping command at the command line followed by an IP address, then waiting to see whether there was a response. Back in the early days of the Internet, things weren’t quite as stable as they are now so system administrators created a suite of tools to help troubleshoot issues.
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