trusted system password expiration

[C W_1]

What is the difference between lftm and exptm?

lftm=password lifetime
exptm=password expiration time

But what, operationally, is the difference?

[Mic V.]

Lifetime is basically how long can the account be used before an administrator has to re-authorize access. Expiration is how long before they have to change the password. From

http://docs.hp.com/en/B3921-90010/prpwd.4.html

u_exp

This field is a time_t value that specifies when the account password will expire. When a password expires, system authentication programs will request that the password be changed when the user logs into the system. If the password lifetime expires before the password is changed, the account will be locked.
u_life

This field is a time_t value that specifies the lifetime of a password. If this time is reached, the account will be locked and can only be unlocked by an authorized system administrator.