Amit : iphone Developer

How to Password Protect Files & Folders in Mac OS X with Disk Images Do this along with  general password protection  for maximum effect. Launch “Disk Utility” located in /Applications/Utilities Click on the “New Image” button at the top of the app Name the disk image and set a file size that is appropriate for what you intend to store in there Click on the contextual menu alongside “Encryption” and choose either 128 or 256-bit encryption (256 is stronger) Click “Create” At the next screen you will set a password to access the folder – do not lose this password, you will not be able to open the disk image if you do Optional: Uncheck the box next to “Remember password in keychain” – only do this if you’re the only user on the Mac, otherwise anyone can open the image without the password Click “OK” to create the disk image The encrypted disk image is now created. Now you need to locate the image, mount it which will require the password set in the creat...

Reset Mac Password – without a CD Using a pretty nifty trick you can reset a forgotten Mac password without a Mac OS X installer CD/DVD. The steps may seem a little intimidating at first but I assure you it’s easy if you follow them exactly, here is exactly how to do this in three stages: Stage 1) Boot into Single User Mode and remove a setup file Restart the Mac holding down the  Command+S  keys, this will take you into Single User Mode and it’s Terminal interface You’ll need to check the filesystem first: fsck -fy Next, you must mount the root drive as writeable so that changes will save: mount -uw / Now, type the following command exactly, followed by the enter key: rm /var/db/.applesetupdone After removing the applesetupdone file, you need to reboot, type ‘reboot’ and hit enter Stage 2) Create a New User Account upon System Boot You aren’t finished, but the hard part is now over – no more command lines, you’ll now be in the familiar Mac OS X GUI to finis...