Creating an ISO image from a CD in OS X

 You need to find the device path of your CD drive.:

 drutil status 

Look through the status info for the CD dvice path. It will look like /dev/disk3 or /dev/disk1 depending on your hardware. You then need to...

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Changing the postfix banner

Make sure that when you send mail from web hosts you have a reverse lookup name that matches your postfix banner. Otherwise you can sometimes get marked as spam by some providers. Use the following to set the postfix name:

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