How to boot a Mac (OSX) into Recovery mode

If you need to do any diagnostics or your Mac will not boot up properly you can use recovery mode to investigate the issue. With the Mac shutdown hold down the Command Button and R on the keyboard then press the power button. Release the keys once the Apple logo appears. Recovery mode should then…

In Mac OS X, how can I check to see if a computer is on the network?

In Mac OS X, to see if a computer is on the network, use the Network Utility to ping the remote host. A ping is a small packet of data sent to the remote host and then sent back by the recipient computer. If the computer is not on the network, it will not be…