man/man7/pam_unix_account.7

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 PAM_UNIX_ACCOUNT 7 "August 19, 2023"
 NAME
pam_unix_account - PAM account management module for UNIX
 SYNOPSIS
pam_unix_account.so.1


 DESCRIPTION
The pam_unix_account module implements pam_sm_acct_mgmt(3PAM), which
provides functionality to the PAM account management stack. The module
provides functions to validate that the user's account is not locked or expired
and that the user's password does not need to be changed. The module retrieves
account information from the configured databases in nsswitch.conf(5).

The following options can be passed to the module:
debug

syslog(3C) debugging information at the LOG_DEBUG level


nowarn

Turn off warning messages


server_policy

If the account authority for the user, as specified by PAM_USER, is a
server, do not apply the Unix policy from the passwd entry in the name service
switch.


 ERRORS
The following values are returned:
PAM_ACCT_EXPIRED

User account has expired


PAM_AUTHTOK_EXPIRED

Password expired and no longer usable


PAM_BUF_ERR

Memory buffer error


PAM_IGNORE

Ignore module, not participating in result


PAM_NEW_AUTHTOK_REQD

Obtain new authentication token from the user


PAM_PERM_DENIED

The account is locked or has been inactive for too long


PAM_SERVICE_ERR

Error in underlying service module


PAM_SUCCESS

The account is valid for use at this time


PAM_USER_UNKNOWN

No account is present for the user


 ATTRIBUTES
See attributes(7) for descriptions of the following attributes:


ATTRIBUTE TYPE ATTRIBUTE VALUE
Interface Stability Evolving
MT Level MT-Safe with exceptions


 SEE ALSO
 syslog (3C),  libpam (3LIB),  pam (3PAM),  pam_authenticate (3PAM),  pam_sm_acct_mgmt (3PAM),  nsswitch.conf (5),  pam.conf (5),  attributes (7)  NOTES
The interfaces in libpam(3LIB) are MT-Safe only if each thread within the
multi-threaded application uses its own PAM handle.

Attempts to validate locked accounts are logged via syslog(3C) to the
LOG_AUTH facility with a LOG_NOTICE severity.