How to use a Mac as a Wi-Fi hotspot (Internet Sharing)?

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/".

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

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.

pwd displays the current location, ls view the file, cd switches the directory; 2. touch creates empty files, mkdir creates folders, rm deletes files or -r deletes folders, mv renames or moves, cp copy files; 3. cat view content, open with default application, nano edits text; add Tab completion, ↑ checks history, Ctrl C termination, man checks help, and gradually practice to use Terminal proficiently.

Cmd C,X,V,Z,A,F,B/I/U,Option Delete,Cmd Delete,Ctrl A/Eareessentialfortextediting;2.Cmd Tab,`,H,M,W,Option W,Option H,Space,Shift 5,Shift 3/4helpwithnavigationandwindowmanagement;3.Cmd N,Shift N,Shift G,D,I,Spacebar,Delete,Shift DeleteimproveFinderef

Cleaning the MacBook keyboard and screen requires the right method to avoid damage to the device. First turn off the machine and then operate. Use a soft brush to swipe the key seam, and use a dust-tight roller or tape to remove stubborn dust. It can be supplemented with air blowing balls to blow away deep dust, but do not use a high-power vacuum cleaner. When cleaning the screen, use only a small amount of detergent with a microfiber cloth, spray it on the cloth first and then wipe it to avoid detergents containing alcohol or irritating ingredients. Use dry cloth to gently wipe your fingerprints in daily life, and do not use glasses cloth. At the same time, develop good habits, such as not eating slag food on the keyboard, checking for debris regularly, avoiding using it in dusty places, and covering the cover with protective cover against dust.

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