Fuh´s Blog

If you’re using an SSD and trying to conserve disk space, you might want to disable the Time Machine local backups feature. This feature places Time Machine backups on your local drive while you are disconnected from your Time Machine external hard drive.

Disable local TM Backup

sudo tmutil disablelocal
reboot

Enable local TM Backup

sudo tmutil enablelocal
reboot

Repair System Keychain

1. As root copy “/var/db/SystemKey” from a working system to the defective one
2. Preserve permissions (0400) for “/var/db/SystemKey”
3. Create a new System Keychain

# /usr/sbin/systemkeychain -C -f

4. Reboot
5. Readd all system keys

Show Network Adaptors

# sudo networksetup -listallnetworkservices
# ifconfig -a

Disable IPv6

sudo networksetup -setv6off Wi-Fi

Disable Autoconfiguration

1. In Outlook check the Mail-Account-Name
2. Check, that Outlook ist running
3. Open AppleScript-Editor
4. In AppleScript-Editor execute

	tell application "Microsoft Outlook"
		set background autodiscover of exchange account "Profilname-aus-Schritt1" to false
	end tell

5. Restart Outlook
6. In Outlook Mail-Account-Settings change the Server-Address to the Webmail-URL
6. Restart Outlook.
7. Outlook comes online

Downgrade to JRE 1.6

# sudo mkdir -p /Library/Internet\ Plug-Ins/disabled
# sudo mv /Library/Internet\ Plug-Ins/JavaAppletPlugin.plugin /Library/Internet\ Plug-Ins/disabled
# sudo ln -sf /System/Library/Java/Support/Deploy.bundle/Contents/Resources/JavaPlugin2_NPAPI.plugin /Library/Internet\ Plug-Ins/JavaAppletPlugin.plugin
# sudo ln -sf /System/Library/Frameworks/JavaVM.framework/Commands/javaws /usr/bin/javaws

Reactivate JRE 1.7

# sudo ln -sf /System/Library/Frameworks/JavaVM.framework/Versions/Current/Commands/javaws /usr/bin/javaws 

Set Spindown Time

 # sudo pmset disksleep 20

Convert an .IMG-Image to an .ISO-Image

hdiutil convert ~/Desktop/SourceImage.img -format UDRW -o ~/Desktop/TargetImage.iso

Convert an .ISO-Image to an .IMG-Image

hdiutil convert ~/Desktop/SourceImage.iso -format Rdxx -o ~/Desktop/TargetImage.img

List Ports with their Service

lsof -i | grep LISTEN

Manage Objects, launched at start

Edit the startup objects manually

/System/Library/StartupItems
/Library/StartupItems

Manage Objects, launched at logon

List Items

osascript -e 'tell application "System Events" to get the name of every login item'

Add Item

osascript -e 'tell application "System Events" to make login item at end with properties {path:"/path/to/itemname", hidden:false}' 

Remove Item

osascript -e 'tell application "System Events" to delete login item "itemname"' 

Edit the startup objects manually

~/Library/Preferences/com.apple.loginitems.plist

Tweak the Finder

Add “Quit”

defaults write com.apple.Finder QuitMenuItem -bool YES
killall Finder

Show full Path in Window Title

defaults write com.apple.finder _FXShowPosixPathInTitle -bool YES
killall Finder

Clear “Open with” Menu

After a while, when you have a lot of applications installed, your “Open with” menu will get overwhelmed.
Delete Elements from

~/Library/Preferences and delete the file “com.apple.LaunchServices.plist

Disable/Reenable download warnings

defaults write com.apple.LaunchServices LSQuarantine -bool FALSE

Reenable download warnings

defaults write com.apple.LaunchServices LSQuarantine