
Apple's macOS has a built-in screen-sharing feature that allows users to remotely control another Mac's display. This can be set up by opening System Preferences from the Apple menu and clicking on Sharing. Additionally, iPhone users can mirror their device's screen onto a MacBook Air by connecting to the same Wi-Fi network and using AirPlay. However, it is unclear if this can be done without a Wi-Fi connection.
| Characteristics | Values |
|---|---|
| Can you screen share through Apple AirPlay? | Yes, you can use AirPlay to stream or mirror the screen of your iPhone or iPad to another Apple device. |
| Devices supported | Apple TV, AirPlay-compatible smart TV, or Mac. |
| Requirements | Both devices must be connected to the same Wi-Fi network and logged in to the same iCloud account. |
| Steps to connect | 1. On iPhone X or later, swipe down from the upper-right corner of the screen. On iPhone 8 or earlier, swipe up from the bottom edge of the screen. |
| 2. Tap the Screen Mirroring button and select the device you want to connect to from the list. | |
| 3. If a passcode appears on the TV or Mac, enter it on your iPhone or iPad. | |
| 4. To stop mirroring, open the Control Center, tap Screen Mirroring, and then tap Stop Mirroring. | |
| Alternative method | iPhone Mirroring app on Mac. |
| iPhone Mirroring requirements | Both devices must be signed in to the same Apple Account and the iPhone must be locked and near the Mac. |
| Additional features | - Interact with iPhone apps and notifications from the Mac. |
| - Drag and drop files between iPhone and Mac. | |
| - Receive iPhone notifications on Mac. | |
| - Make and receive phone calls on Mac. | |
| Third-party options | Third-party VNC server applications like Vine VNC can be used for screen sharing if the built-in Apple Screen Sharing doesn't meet your needs. |
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What You'll Learn

Using AirPlay to stream iPhone content to a MacBook Air
AirPlay is a wireless streaming technology that allows users to stream or share content from their Apple devices to other compatible devices. To use AirPlay to stream content from your iPhone to a MacBook Air, both devices must meet the minimum system requirements and be connected to the same Wi-Fi network.
- Ensure that both your iPhone and MacBook Air are connected to the same Wi-Fi network.
- On your iPhone, open the Control Center by swiping down from the upper-right corner of the screen (iPhone X or later) or swiping up from the bottom edge of the screen (iPhone 8 or earlier).
- In the Control Center, tap the "Screen Mirroring" option, then select your MacBook Air from the list of available devices.
- If prompted, enter the AirPlay passcode displayed on your MacBook Air onto your iPhone.
- Your iPhone screen should now be mirrored on your MacBook Air.
You can also use AirPlay to stream specific content, such as photos, videos, or audio, to your MacBook Air. Here's how:
- Open the app containing the content you want to stream (e.g., Photos, Videos, Music).
- Find the photo, video, or audio file you want to stream.
- Tap the AirPlay button. In some apps, you may need to tap a different button first (e.g., the Share button in the Photos app).
- Choose your MacBook Air from the list of available devices.
- The selected content will now be streamed to your MacBook Air.
Note: To stop streaming or mirroring, open the Control Center on your iPhone, tap the AirPlay or Screen Mirroring button, and then tap your iPhone in the list or tap "Stop Mirroring."
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Connecting to two Macs on the same network
Apple offers several ways to connect two Macs on the same network, including using the built-in Apple Screen Sharing feature, Universal Control, Thunderbolt cables, and Ethernet cables.
Using Apple Screen Sharing
To use Apple's built-in Screen Sharing feature to connect to two Macs on the same network, ensure that both Macs are signed in to the same iCloud account and are connected to the same Wi-Fi network. You can then access one Mac from the other by using the LAN IP address of the target Mac. If both Macs are on different networks, you can try setting up port forwarding on your router or installing a third-party VNC server application on one of the Macs to change the port it listens to.
Using Universal Control
Universal Control allows you to connect and control multiple Macs seamlessly using a single set of peripherals, such as a keyboard and mouse. To use Universal Control, ensure that your Macs meet the following requirements:
- Running macOS Monterey 12.3 or later
- Signed into the same iCloud account with two-factor authentication
- Have Bluetooth, Wi-Fi, and Handoff enabled
- Within 30 feet of each other and connected to the same Wi-Fi network without a VPN
Using Thunderbolt Cables
Thunderbolt cables provide a fast and direct way to connect two Macs. To use this method, connect the two Macs using a Thunderbolt cable or adapter, depending on the Thunderbolt version supported by your Macs. Then, open System Preferences/Settings > Network and ensure that Thunderbolt Bridge appears in the list of interfaces on both machines.
Using Ethernet Cables
Ethernet cables can also be used to connect two Macs directly. Connect the two Macs using an Ethernet cable, then open System Preferences/Settings > Network and ensure that Ethernet appears in the list of interfaces. This method will result in a self-assigned IP address for each Mac, allowing them to communicate directly.
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Using the iPhone Mirroring app to control your iPhone from your Mac
Using the iPhone Mirroring app, you can wirelessly interact with your iPhone and its apps and notifications from your Mac. To get started, make sure your iPhone is locked and near your Mac, and that both devices are signed in to the same Apple Account.
Next, open the iPhone Mirroring app on your Mac and click "Connect". You will then be prompted to enter your iPhone passcode. After that, you can choose from two options: "Ask Every Time" or "Authenticate Automatically". The former will require you to authenticate using your Mac login password, Touch ID, or Apple Watch before each mirroring session, while the latter will automatically connect your devices without authentication after the initial setup.
Once connected, you can interact with your iPhone from the iPhone Mirroring window. You can reposition and resize this window by dragging the toolbar at the top or using the View menu in the menu bar. You can also use the iPhone Mirroring app to transfer files between your iPhone and Mac by simply dragging and dropping them. Additionally, you can set up iPhone notifications to appear on your Mac, allowing you to manage them from either device.
Note that some iPhone features, such as the camera and microphone, are not compatible with iPhone Mirroring. Also, while your iPhone is being mirrored, it will display a message stating that it is in use and will identify the Mac that is accessing it.
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Using a Screen Sharing app to remotely access a Mac
Screen sharing is a built-in feature on macOS, which allows users to access another Mac device remotely. This feature is particularly useful for providing remote support, conducting virtual meetings, and overseeing operations without being physically present.
To enable screen sharing on macOS, follow these steps:
- Access System Preferences: Click on the Apple menu located at the top-left corner of the screen and select "System Preferences."
- Navigate to Sharing Preferences: From the System Preferences window, select "Sharing."
- Enable Screen Sharing: Click the checkbox next to "Screen Sharing" to enable this feature.
- Set Up Permissions: Correctly configure access settings to maintain control over who can access your screen. You can choose between "All Users" or "Only These Users."
- Disable Remote Management: If "Remote Management" is turned on, disable it to ensure screen sharing functions correctly.
Once screen sharing is enabled, you can use the Messages app to initiate a connection with another Mac user. Simply start a conversation, click on "Conversation" in the top menu bar, and choose "Ask to Share Screen." The other user will receive a notification and can accept the request to establish the screen-sharing session.
Additionally, Apple's AirPlay feature enables wireless audio and video streaming from a Mac to Apple TV or other compatible devices. Alternatively, if you have a Google account, Google's Chrome Remote Desktop tool allows you to share your Mac screen with any device running a Chrome browser.
For more advanced use cases, you can consider using a third-party VNC (Virtual Network Computing) server application, such as Vine VNC, to access another Mac remotely. This may require setting up port forwarding on your router and ensuring that both Macs are not listening on the same default port.
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Troubleshooting a Mac connection with port forwarding
Understanding Port Forwarding
Port forwarding is a process that allows you to redirect internet traffic from one port to another. This can be useful if you want to host a service, improve gaming performance, or access devices on your network remotely.
Checking Your IP Addresses
Before you begin port forwarding, ensure that the IP address listed in the port forwarding settings matches the IP address of the machine you want to connect to. This is a common issue that can cause connection problems.
Enabling Services
When forwarding a port, you must enable the service you want to use on that port. Each service or application has specific ports it uses, and you can find this information in the developer documentation.
Setting Up a Fixed IP Address
To forward a port successfully, your Mac needs a fixed IP address. This can be set up through your router's settings, and you may need to know your computer's network MAC address for an Ethernet connection.
Using a Third-Party VNC Server
If you are having trouble connecting to your Mac with the built-in screen-sharing feature, consider installing a third-party VNC server application, such as Vine VNC. This can provide more flexibility in port configuration.
Using "Back to My Mac" Feature
If you are trying to access your Mac locally, you can enable the "Back to My Mac" feature built into your Mac. This may be a simpler solution than port forwarding.
Dynamic DNS for Remote Access
If your router does not support port forwarding, you can still access your Mac remotely by running a Dynamic DNS client program on your Mac. This provides an alternative method for remote connections.
Remember to review your network settings, firewall configurations, and ensure that Screen Sharing or Remote Management is enabled on the computer you want to connect to.
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