What are Passkeys and how do they work on a Mac?

To share files between two Macs on the same network, first make sure that the two devices are connected to the same LAN, then enable file sharing on the host, set shared folders and access permissions, and then connect from another Mac through the access sidebar or manually enter the SMB address, and finally you can browse, copy or transfer files. Common problems include waiting or restarting the network when the device cannot be discovered. If the permissions are incorrect, you need to check the username, password and sharing settings. If the connection fails, you can try the SMB address. If the firewall blocks, you can temporarily close the test.

When the Mac's USB port cannot work, you can try the following methods to troubleshoot problems in turn: 1. Check the connection problem, confirm that the cable and equipment are normal, and clean the interface; 2. Restart the system and check the USB device status in the system report; 3. Reset the SMC and NVRAM (PRAM) to solve potential system abnormalities; 4. Check the system permission settings and device compatibility; 5. Check the hardware damage. If the interface does not respond or the appearance is damaged, professional repairs may be required. In most cases, it can be solved by cleaning, restarting or system adjustment. If it is invalid, hardware failure will be considered.

To share your Mac screen with others, you can choose the appropriate method according to different scenarios. First, through video conferencing tools such as Zoom, click the "Share" button to select the screen or a specific window for sharing; second, use Messages or FaceTime to initiate a screen sharing session, click the " " to select "Screen Sharing" and invite the other party to view or control it; third, use the "Screen Sharing" App that comes with the system to enable this function on the target Mac and connect to the server address through Finder to achieve remote access; in addition, you need to pay attention to details such as permission settings, privacy protection and network performance impact.

Mac screenshots themselves do not support scrolling screenshots, but can be implemented through system functions or third-party tools. 1. Use the screenshot tool in macOS to manually splice the preview app: take a segmented screenshot and leave an overlapping area. Drag in the picture through the preview app to export it as a PDF or picture. 2. Safari browser native scrolling screenshots: In macOSMojave and above, press Cmd Shift 4 spaces and click "Enterprise Page" to automatically generate a complete screenshot. 3. Automatic scrolling screenshots for third-party tools: such as Lightshot, Snagit, Shottr, supports shortcut key operations and automatic scrolling screenshots, suitable for frequent use scenarios. Just choose the right method according to your needs.

To connect to a remote server using SSH from your Mac, just run the corresponding command through the terminal. First open the terminal program (you can search through "Applications" → "Utilities" or Spotlight), and then enter the command in sshusername@server_ip format. If you want to specify a non-default port, add the -p parameter. If you want to log in without password, you can execute ssh-keygen to generate the key, ssh-copy-id upload the public key to the server, and ensure that the server configuration allows key authentication. Common problems include network blockage, port not open, username errors and improper permission settings. It is recommended to use the ssh-v command to troubleshoot problems. Although the whole process is simple, you need to pay attention to the firewall and files

To find the Library folder on your Mac, you can follow the following steps: 1. Open the Finder window; 2. Click "Go" in the top menu bar; 3. Press and hold the Option (⌥) key to make the "Library" option appear; 4. Click to enter the Library folder. This folder contains subfolders such as application support files, caches, preferences, logs, and keychains, and is suitable for debugging applications, clearing caches, or managing extensions. If you need frequent access, you can run the "chflagsnohidden~/Library/" command through the terminal to make it permanently displayed. If you hide it again, use "chflagshidden~/Library/".

When the Mac application is unresponsive, there are three ways to force exit: 1. Use the shortcut key Command Option Esc to pop up the "Force Exit Application" window, select the unresponsive application and click "Force Exit", which is suitable for daily GUI applications; 2. Find and end the process that occupies resources through "Activity Monitor", which is suitable for troubleshooting background problems; 3. After using psaux|grep "application name" to obtain the PID in the terminal, enter kill or kill-9 to terminate the process, which is suitable for advanced users to handle complex situations.

Completely uninstalling Mac applications requires clearing residual files. There are four specific methods: 1. Manually delete the main program and check the residual files in ~/Library/ApplicationSupport/, ~/Library/Preferences/, ~/Library/Caches/; 2. Use Launchpad to uninstall the app installed in AppStore, but the configuration files may still be left behind; 3. Use AppCleaner or CleanMyMacX and other tools to clear the associated files in one click, suitable for users who are not familiar with the system; 4. Use special software such as Adobe and ParallelsDesktop to use official uninstall tools or reference official websites