DHCP, DHCP, Wherefore Art Thou DHCP? | Amsys

http://www.amsys.co.uk/2012/blog/dhcp-dhcp-wherefore-art-thou-dhcp/

Mountain Lion DHCP server how to install command line 

iCloud: What to do with your iCloud data before selling or giving up possession of your Mac

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http://support.apple.com/kb/HT5189?viewlocale=en_US&locale=en_US

GRC's | Password Haystacks: How Well Hidden is Your Needle?

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https://www.grc.com/haystack.htm