Start adding broad optimizations, add useradd-bulk.sh

Author: sickcodes

README.md

@@ -1,2 +1,207 @@
-# osx-optimizer
+# OSX-Optimizer
 OSX Optimizer: Optimize MacOS - Shell scripts to speed up your mac boot time, accelerate loading, and prevent unnecessary throttling.
+
+macOS can be heavily modified using the `defaults` command. In fact, almost every option is accessible via `defaults`.
+
+A great way to see what ticking and unticking a box in the Settings App is by using:
+
+```bash
+defaults read > defaults.pre.txt
+
+# *make a change in Settings*
+
+defaults read > defaults.post.txt
+
+diff defaults.pre.txt defaults.post.txt
+```
+
+# OSX Optimizations
+
+Below you will find extremely good optimizers, particularly for virtual machines.
+
+Some of the commands are dangerous from a remote access perspective, but they will greatly optimize your VM.
+
+
+## Skip the GUI login screen (at your own risk!)
+```bash
+defaults write com.apple.loginwindow autoLoginUser -bool true
+```
+
+User accounts and root/administrator have different `defaults`
+
+## Disable spotlight indexing on macOS to heavily speed up Virual Instances.
+
+```bash
+# massively increase virtualized macOS by disabling spotlight.
+sudo mdutil -i off -a
+
+# since you can't use spotlight to find apps, you can renable with
+# sudo mdutil -i on -a
+
+```
+
+## Disable heavy login screen wallpaper
+
+```bash
+sudo defaults write /Library/Preferences/com.apple.loginwindow DesktopPicture ""
+```
+
+## Enable multi-sessions
+
+```bash
+sudo /usr/bin/defaults write .GlobalPreferences MultipleSessionsEnabled -bool TRUE
+
+defaults write "Apple Global Domain" MultipleSessionsEnabled -bool true
+```
+
+## Disable updates (at your own risk!)
+This will prevent macOS from downloading huge updates, filling up your disk space.
+
+Disabling updates heavily speeds up virtualized macOS because the qcow2 image does not grow out of proportion.
+
+```bash
+# as roots
+sudo su
+defaults write /Library/Preferences/com.apple.SoftwareUpdate AutomaticDownload -bool false
+defaults write com.apple.SoftwareUpdate AutomaticCheckEnabled -bool false
+defaults write com.apple.commerce AutoUpdate -bool false
+defaults write com.apple.commerce AutoUpdateRestartRequired -bool false
+defaults write com.apple.SoftwareUpdate ConfigDataInstall -int 0
+defaults write com.apple.SoftwareUpdate CriticalUpdateInstall -int 0
+defaults write com.apple.SoftwareUpdate ScheduleFrequency -int 0
+defaults write com.apple.SoftwareUpdate AutomaticDownload -int 0
+```
+
+## Enable `osascript` over SSH automatically without **sshd-keygen warning** and **full disk access**
+
+```bash
+
+defaults write com.apple.universalaccessAuthWarning /System/Applications/Utilities/Terminal.app -bool true
+defaults write com.apple.universalaccessAuthWarning /usr/libexec -bool true
+defaults write com.apple.universalaccessAuthWarning /usr/libexec/sshd-keygen-wrapper -bool true
+defaults write com.apple.universalaccessAuthWarning com.apple.Messages -bool true
+defaults write com.apple.universalaccessAuthWarning com.apple.Terminal -bool true
+
+```
+
+## Disable screen locking
+
+```bash
+defaults write com.apple.loginwindow DisableScreenLock -bool true
+```
+
+## Show a lighter username/password prompt instead of a list of all the users
+
+```bash
+defaults write /Library/Preferences/com.apple.loginwindow.plist SHOWFULLNAME -bool true
+defaults write com.apple.loginwindow AllowList -string '*'
+
+```
+
+## Disable saving the application state on shutdown
+
+This speeds up boot as the session state (currently opened apps) are not running when you reboot.
+
+This may be slower for you depending on what you are doing.
+
+```bash
+defaults write com.apple.loginwindow TALLogoutSavesState -bool false
+```
+
+Enable AnyDesk automatically
+
+```bash
+
+defaults write com.apple.universalaccessAuthWarning "/Applications/AnyDesk.app" -bool true
+defaults write com.apple.universalaccessAuthWarning "/Applications/AnyDesk.app/Contents/MacOS/AnyDesk" -bool true
+defaults write com.apple.universalaccessAuthWarning "3::/Applications" -bool true
+defaults write com.apple.universalaccessAuthWarning "3::/Applications/AnyDesk.app" -bool true
+defaults write com.apple.universalaccessAuthWarning "com.philandro.anydesk" -bool true
+
+```
+
+## Enable remote access (at your own risk!)
+
+```bash
+sudo /System/Library/CoreServices/RemoteManagement/ARDAgent.app/Contents/Resources/kickstart \
+    -activate \
+    -configure \
+    -access \
+    -off \
+    -restart \
+    -agent \
+    -privs \
+    -all \
+    -allowAccessFor -allUsers
+```
+
+
+
+
+
+# EXTREMELY INSECURE METHODS (at your own risk!)
+
+These macOS optimizations should only be used in CI/CD, behind a VPN, and with no external connectivity.
+
+This is not a warning, it is absolutely essential, or anyone can just SSH into the remote mac.
+
+If you do any of the below commands on a remote server, you will
+
+## Disable passwords globally
+
+- Everyone is now root
+- No need to type passwords
+- SSH login just hit enter for password
+
+As root:
+
+```bash
+sudo su
+# nuke pam
+for PAM_FILE in /etc/pam.d/*; do
+    sed -i -e s/required/optional/g "${PAM_FILE}"
+    sed -i -e s/sufficient/optional/g "${PAM_FILE}"
+done
+```
+
+
+
+sudo killall Finder || true
+sudo killall Dock || true
+sudo killall mds
+
+
+## Make everyone a sudoer
+
+```bash
+cd /Users
+# add everyone to sudoers and import the control center plist
+for REAL_NAME in *; do
+    echo "${REAL_NAME}"
+    tee "/etc/sudoers.d/${REAL_NAME}" <<< "${REAL_NAME}     ALL=(ALL)       NOPASSWD: ALL"
+    # sudo -u "${REAL_NAME}" defaults write -globalDomain NSUserKeyEquivalents  -dict-add "Save as PDF\\U2026" "@\$p";
+    sudo -u "${REAL_NAME}" sudo mdutil -i off -a
+    # sudo -u "${REAL_NAME}" defaults import com.apple.controlcenter /tmp/com.apple.controlcenter.plist
+    # sudo -u "${REAL_NAME}" defaults write "/Users/${REAL_NAME}/Library/Preferences/.GlobalPreferences MultipleSessionEnabled" -bool 'YES'
+    # sudo -u mdutil -i off -a
+    # sudo dscl . -create "/Users/${REAL_NAME}" UserShell "${USERSHELL}"
+    sudo -u "${REAL_NAME}" "whoami"
+done
+#############################3
+
+```
+
+
+# Disable apps from going to sleep at all
+This command will prevent applications from sleeping, completely in the background.
+
+You can verify this using the `top` command and an App should never go into `sleeping` state.
+
+This increases RAM usage, but means your apps, like Xcode, will spring into action.
+
+```bash
+sudo -u "${REAL_NAME}" sudo defaults write NSGlobalDomain NSAppSleepDisabled -bool YES
+```
+
+
+