macOS
http://notes.jerzygangi.com/the-best-pgp-tutorial-for-mac-os-x-ever/
https://apple.stackexchange.com/questions/37366/what-exactly-does-kernel-task-do
Pretty sure ExitUpsellKeyValueStore has to do with Apple TV, for anyone who is googling and not finding much information. Delete the file, then open Apple TV and select the first episode of any show. You should see the file, it’s recreated.
~/Library/Spelling/LocalDictionary
Open Spotlight Search. Type: “Network Utility”
./ vs source:
- ./ runs the script as an executable file in a new shell
- source runs the script from the current shell
Homebrew, MacPorts
/usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
brew update
Install MacPorts, then do this:
sudo port selfupdatesudo port upgrade outdated
Virtual Box
command+tab issue
iTunes
If you have multiple devices.. and you want to sync all of the songs correctly, this is what you need to do. Make sure that all of the devices are empty (0 songs and music videos). Delete everything on the devices then again in iTunes.
For some reason, just because you deleted everything on the devices, doesn’t mean it’s really deleted. Some of it will still show up on iTunes. You need to delete everything there too. After that, select all of the songs you want, then “add to device.”
Finder
https://superuser.com/questions/382120/mac-os-x-not-reporting-directory-sizes-correctly
Be careful, delete all .DS_Store:
find . -name '.DS_Store' -type f -delete
To restore a folder to the default view settings:
- Open the View Options panel (View->Show View Options)
-
Hold down Option key (the button “Use as Defaults” changes when this key is pressed) and click on “Restore to Defaults”
- Go to: /System/Library/CoreServices/Menu Extras/
- Drag any of the item to the toolbar at the top.
defaults write com.apple.finder AppleShowAllFiles YES (NO after you don’t need it anymore)
Someone asked, yes you can recreate the Downloads folder. If you accidentally deleted the content inside the folder, try to see if it’s in the Time Machine.
If you have iCloud turned on, it may move your Downloads and Documents folder around too.
##
Users can export unmodified/original photos
To look at language related stuff, System Preference -> Keyboard
Optimizing
Launchpad -> Activity Monitor, similar to Task Manager in Windows
Memory optimizer app not necessary
A user complained about throttling of some kind, might be SpeedStep (an Intel specific thing)
Hardening
https://github.com/drduh/macOS-Security-and-Privacy-Guide/
Had to learn this the hard way. To Apple, there is a difference between Two-Factor Authentication and Two-Factor Verification.
Be very, very careful but when you encounter “Operation not permitted,” typically in Terminal, go to: System Preferences->Security & Privacy->Privacy->Full Disk Access Add Terminal to FDA. Don’t forget to remove it.
- Turn on FileVault
- Turn on Firewall
- Check “Enable stealth mode”
- Uncheck “Automatically allow built-in software to receive incoming connections” *
- Uncheck “Automatically allow downloaded signed software to receive incoming connections” *
- Turn off Spotlight Suggestions *
- Network -> For Bluetooth PAN, Thunderbolt Bridge, make services inactive. *
- Hidden and/or Prey
- Little Snitch
- OverSight
-
rkhunter
- possibly optional
Troubleshooting
You can restore stuff from here: /System/Library/CoreServices/CoreTypes.bundle/Contents/Resources/
rsync crashes Mac
This is because the rsync that ships with the M1 is from 2006 (“version 2.6.9 protocol version 29”). The latest version as of this writing is (“version 3.2.3 protocol version 31”).
To get the latest version, brew install rsync.
3 and 4 Finger Gestures Stop Working
Open up a terminal: killall Dock
Quick Look Preview with spacebar not working
Open up Activity and force close “QuickLookUIService (Finder)”
Version History
- Mountain Lion
- Mavericks
- Yosemite
- El Capitan
- Sierra
- High Sierra
- Mojave
- Catalina
- Big Sur
- Monterey
- Ventura
- Sonoma
macos
mac
]