auth(5)auth(5)Nameauth - auth database
The database is a repository of security-relevant information about
each user of the system. This database contains the encrypted password
associated with the user's account in addition to a list of assorted
capabilities. The database is stored as an database in the files and
Records are retrieved with the library routine. Access to the database
is restricted to the superuser and members of the group
Auth records may be converted to an ASCII representation whose format
The first field is the UID of the entry that is used as the key into
the database. Then follows:
This is the user's encrypted password. Whether this
password or the one from the file is actually used is
determined by the security level that the system is run‐
Password Modification Time
This is the time(2) the password was last set.
Minimum Password Lifetime
This is the minimum number of seconds which must elapse
between setting passwords.
Maximum Password Lifetime
This is the maximum period of time for which the pass‐
word will be valid.
Account Mask These are capabilities pertaining to the account itself.
1 A_ENABLE: this account is enabled.
2 A_CHANGE_PASSWORD: The user can change his or her
4 A_ENTER_PASSWORD: The user is not required to use
Login Failure Count
This is the count of unsuccessful login attempts since
the last successful login.
Audit ID Positive integer identifier used in generating audit
records for the user.
Audit Control See the reference page, SET_APROC_CNTL section for more
Audit Mask Determines which events will be audited for the user.
See the and reference pages for more information.
Only the superuser and members of the group may read information from
the auth database. Only the superuser may modify the auth database.
FilesSee Alsoaudcntl(2), getauthuid(3), getpwent(3), edauth(8)auth(5)