- #Useful mac diagnostic tools how to
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Numerous ifconfig command options are available, and most are well beyond the scope of such an overview as is found here. Use the hostname command to confirm the system’s computer name. The ifconfig command reveals critical information regarding a Mac’s network interfaces, whether the network interface is a wired or wireless connection. They are ifconfig, ipconfig and traceroute. Three critical network commands, however, potentially provide the most powerful network diagnostic and troubleshooting assistance. As previously reviewed, the Mac command line helps unlock the power of the command line, enter basic directory commands, navigate the Mac shell, simplify networking and more. The Mac Terminal, of course, provides direct access to the underlying OS. As Mac users and administrators develop greater skill and experience, however, they typically graduate to seeking specific Terminal commands to more quickly diagnose and repair network errors. The Mac’s Systems Preferences Network applet enables configuring network settings, while the Network Utility (found within Applications\Utilities) provides a graphical interface for troubleshooting network errors.
#Useful mac diagnostic tools how to
When you finish using the Apple Hardware Test, quit the test by clicking either the Restart or Shut Down button.Diagnose Mac networking problems with these three commandsĮrik Eckel explains how to use three common commands to find networking issues and troubleshoot them.To do so, place a checkmark in the Perform Extended Testing (takes considerably more time) box, and then click the Test button. If no trouble was found, you may still want to run the extended test, which is better at finding memory and graphics problems.
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If you see an error in the test results, take a look at the error code section below for a list of common error codes and what they mean. The Test Results area of the window displays either a "No trouble found" message or a list of problems. When the test is complete, the status bar disappears.
You may hear your Mac's fans rev up and down this is normal during the testing process. The test can take a bit of time, so be patient.
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Once the download is complete, you will see the option to select a language.
#Useful mac diagnostic tools password
If you chose a wireless network connection, enter the password and then press Enter or Return, or click the checkmark button on the display.After a short time, the display asks you to choose a network. Use the drop-down menu to select from the available network connections.Once you see the message, you can release the Option and D keys. Continue to hold the Option and D keys until you see a Starting Internet Recovery message on your Mac's display.Immediately hold down the Option and D keys.Press the power button to start the power-on process.
Do not run the hardware test using only your Mac's battery. If you're testing a Mac portable, connect it to an AC power source.