1) Copy archive to desktop.
2) Open terminal.
3) Type this without quotes "zip -FF ~/desktop/archive-name.zip --out ~/desktop/archive-new.zip".
4) Is this a single-disk archive? (y/n): y.
5) Your new archive is created on the desktop.
6) In case the name is no coherent. Add .zip to produced file.
7) Uncompress new archive.
Friday, October 19, 2012
Secure Time Machine backup
In Terminal :
: ifconfig en0 | grep ether
: ether 00:00:00:00:00:00
Get name of your computer inside Sharing Preferences :
: Mac
Mac_000000000000
Open disk utility :
1) Create a new empty image.
2) Save as Mac_000000000000 inside Time Machine hard drive.
3) Name : Mac.
4) Size : As you wish.
5) Format : Mac OS Extended (Journaled).
5) Encryption 128 or 256bits.
6) Partition : Single partition - Apple Partition Map.
7) Image format : sparse bundle disk image.
8) You are asked to enter a secure password.
: Drag and drop secure password from login to system.
: Inside Time Machine Preferences select Time Machine hard drive containing the new secure empty image.
: ifconfig en0 | grep ether
: ether 00:00:00:00:00:00
Get name of your computer inside Sharing Preferences :
: Mac
Mac_000000000000
Open disk utility :
1) Create a new empty image.
2) Save as Mac_000000000000 inside Time Machine hard drive.
3) Name : Mac.
4) Size : As you wish.
5) Format : Mac OS Extended (Journaled).
5) Encryption 128 or 256bits.
6) Partition : Single partition - Apple Partition Map.
7) Image format : sparse bundle disk image.
8) You are asked to enter a secure password.
: Drag and drop secure password from login to system.
: Inside Time Machine Preferences select Time Machine hard drive containing the new secure empty image.
Delete a Certification Authority from Keychains
1)Backup Certificates.
sudo cp /System/Library/Keychains/SystemRootCertificates.keychain /System/Library/Keychains/SystemRootCertificates.keychain.bak
2)Extract "SHA1" from the specific Certificate.
3)Delete Certificate.
sudo security delete-certificate -Z "SHA1" /System/Library/Keychains/SystemRootCertificates.keychain
sudo cp /System/Library/Keychains/SystemRootCertificates.keychain /System/Library/Keychains/SystemRootCertificates.keychain.bak
2)Extract "SHA1" from the specific Certificate.
3)Delete Certificate.
sudo security delete-certificate -Z "SHA1" /System/Library/Keychains/SystemRootCertificates.keychain
Thursday, October 18, 2012
Disable AirDrop
To disable AirDrop :
defaults write com.apple.NetworkBrowser DisableAirDrop -boolean YES
To enable AirDrop :
defaults write com.apple.NetworkBrowser DisableAirDrop -boolean NO
defaults write com.apple.NetworkBrowser DisableAirDrop -boolean YES
To enable AirDrop :
defaults write com.apple.NetworkBrowser DisableAirDrop -boolean NO