Apple OSX

While there have been numerous revisions to the venerable OS X, this section is focused on shortcuts and tips that work accross the board from Cheetah(10.4) to Snow Leopard(10.6) Keyboard shortcuts

To start up into Safe Mode (to Safe Boot)

Be sure your Mac is shut down.
 * 1) Press the power button.
 * 2) Immediately after you hear the startup tone, hold the Shift key. The Shift key should be held as soon as possible after the startup tone, but not before the tone.
 * 3) Release the Shift key when you see the gray Apple icon and the progress indicator (looks like a spinning gear).

Official List

For all things related to Networking
This is Universal - Choose Apple > System Preferences, and then click Network. You can also check the PPPoE page for more information on creating a PPPoE connection
 * Tiger 10.4
 * 1) Click Ethernet Adapter - this will open to the TCP/IP tab
 * 2) Your options are either "Using DHCP" or "Manually" DHCP=DHCP Manually=Static
 * 3) if you need to set up PPPoE click the PPPoE Tab and check Connect using PPPoE
 * 4) when your finished Click Apply Now
 * Leopard/Snow Leopard 10.5/10.6
 * 1) In the left hand column you will have Ethernet...., PPoE, Airport(wireless) etc
 * 2) Click Ethernet Adapter - this will open to the right
 * 3) You have 3 options now, from the configure box you can select DHCP,Manually(Static) or Create PPPoE
 * 4) DHCP=DHCP,  Manually=Static IP

Terminal - The Mac equivalent to Command Prompt

How to open Terminal What to do with Terminal
 * 1) From the top bar Choose Go >Utilities, and then click Terminal
 * 2) Alternatively navigate to Applications folder>Utilities and click Terminal

Clear DNS Cache
 * Mac OSX 10.4 and Below = lookupd -flushcache
 * Mac OSX 10.5 and Above= dscacheutil -flushcache**