If you decide to no longer travel either because your original flight was canceled or you are delayed two hours or more, you can receive a refund to your original form of payment. Other optional services such as checked baggage and Economy PlusÂ® can also be refunded, but ticketing fees (such as those for making a reservation in person) are not.
WPA is a wireless encryption format and the passphrase is in the wireless security section of your router. Here is a link to one of the Sticky topics at the top of this forkum that should be of assistance.
Passphrases are optional when generating SSH private keys, but they are highly recommended. The SSH private key is the half of the key pair that you keep on your computer or with you. The public key is the part that you upload to the remote server. Think of your SSH private key as a debit card.