To view your systems authorization log simply type the following command in a terminal window:
$> cat /var/log/auth.log
To view all your failed login attempts type the following command into a terminal window:
$> cat /var/log/auth.log | grep 'Failed password'
To view all your failed login attempts type the following command into a terminal window:
$> cat /var/log/auth.log | grep 'Accepted password'