encryptVirtualMemory.sh

#!/bin/sh
####################################################################################################
#
# Copyright (c) 2010, JAMF Software, LLC.  All rights reserved.
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#       SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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####################################################################################################
#
# SUPPORT FOR THIS PROGRAM
#
#       This program is distributed "as is" by JAMF Software, LLC's Resource Kit team. For more
#       information or support for the Resource Kit, please utilize the following resources:
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####################################################################################################
#
# ABOUT THIS PROGRAM
#
# NAME
#	encryptVirtualMemory.sh -- Encrypts Virtual Memory
#
# SYNOPSIS
#	sudo encryptVirtualMemory.sh
#
# DESCRIPTION
#	This script will encrypt virtual memory.  Please note that a reboot must take place after
#	running the script for the virtual memory to be encrypted.
#
####################################################################################################
#
# HISTORY
#
#	Version: 1.1
#
#	- Created by Tedd Herman on December 7th, 2008
#	- Modified by Nick Amundsen on January 5th, 2009
#
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OS=`/usr/bin/defaults read /System/Library/CoreServices/SystemVersion ProductVersion | awk '{print substr($1,1,4)}'`

if [[ "$OS" < "10.5" ]]; then
	if [ `cat /private/etc/hostconfig | grep ENCRYPTSWAP=-NO-` ]; then
		echo "Encrypting Virtual Memory. Virtual memory will be encrypted upon reboot."
		/bin/cat /private/etc/hostconfig | sed s/ENCRYPTSWAP=-NO-/ENCRYPTSWAP=-YES-/g > /private/tmp/hostconfig
		/bin/mv /private/tmp/hostconfig /private/etc/hostconfig
	else
		echo "Virtual Memory is Already Being Encrypted.  No Changes Will be Made."
	fi
else
	echo "Encrypting Virtual Memory. Virtual memory will be encrypted upon reboot."
	/usr/bin/defaults write /Library/Preferences/com.apple.virtualMemory UseEncryptedSwap -bool yes
fi
exit 0