The name of a program that can be used to check password complexity. The password is sent to the program's standard input. The program must return 0 on a good password, or any other value if the password is bad. In case the password is considered weak (the program does not return 0) the user will be notified and the password change will fail. Note: In the example directory is a sample program called crackcheck that uses cracklib to check the password quality. Disabled /usr/local/sbin/crackcheck