CHAPTER 12
Networking, Security, and Troubleshooting
macOS enables you to share files, printers, and scanners across networks. To keep your MacBook running well, you need to use macOS’s security features and perform basic maintenance, such as emptying the Trash and updating both macOS and your apps with the latest fixes. You may also need to troubleshoot your MacBook.
Connect to a Shared or Network Printer
Enable and Configure the Firewall
Reclaim Space by Emptying the Trash
Keep Your MacBook Current with Updates
Control Checking for Software and App Updates
Transfer Files Using AirDrop
macOS’s AirDrop feature enables you to transfer files easily via Bluetooth and Wi-Fi between your MacBook and nearby Macs, iPads, or iOS devices. Activating AirDrop in a Finder window shows you available Macs and iOS devices, and you can drag a file to the Mac or iOS device to which you want to send it. Similarly, nearby Macs and iOS devices can send files to your MacBook via AirDrop, and you can decide whether to accept or reject each file.
Transfer Files Using AirDrop
Send a File via AirDrop
Click Finder () on the Dock.
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