PAM_USERTYPE(8) Linux-PAM Manual PAM_USERTYPE(8)
NAME
pam_usertype - check if the authenticated user is a system or regular account
SYNOPSIS
pam_usertype.so [flag...] {condition}
DESCRIPTION
pam_usertype.so is designed to succeed or fail authentication based on type of the account of the authenticated
user. The type of the account is decided with help of SYS_UID_MAX settings in /etc/login.defs. One use is to
select whether to load other modules based on this test.
The module should be given only one condition as module argument. Authentication will succeed only if the
condition is met.
OPTIONS
The following flags are supported:
use_uid
Evaluate conditions using the account of the user whose UID the application is running under instead of the
user being authenticated.
audit
Log unknown users to the system log.
Available conditions are:
issystem
Succeed if the user is a system user.
isregular
Succeed if the user is a regular user.
MODULE TYPES PROVIDED
All module types (account, auth, password and session) are provided.
RETURN VALUES
PAM_SUCCESS
The condition was true.
PAM_BUF_ERR
Memory buffer error.
PAM_CONV_ERR
The conversation method supplied by the application failed to obtain the username.
PAM_INCOMPLETE
The conversation method supplied by the application returned PAM_CONV_AGAIN.
PAM_AUTH_ERR
The condition was false.
PAM_SERVICE_ERR
A service error occurred or the arguments can't be parsed correctly.
PAM_USER_UNKNOWN
User was not found.
EXAMPLES
Skip remaining modules if the user is a system user:
account sufficient pam_usertype.so issystem
SEE ALSO
login.defs(5), pam(8)
AUTHOR
Pavel Březina <pbrezina@redhat.com>
Linux-PAM 05/07/2023 PAM_USERTYPE(8)
NAME
pam_usertype - check if the authenticated user is a system or regular account
SYNOPSIS
pam_usertype.so [flag...] {condition}
DESCRIPTION
pam_usertype.so is designed to succeed or fail authentication based on type of the account of the authenticated
user. The type of the account is decided with help of SYS_UID_MAX settings in /etc/login.defs. One use is to
select whether to load other modules based on this test.
The module should be given only one condition as module argument. Authentication will succeed only if the
condition is met.
OPTIONS
The following flags are supported:
use_uid
Evaluate conditions using the account of the user whose UID the application is running under instead of the
user being authenticated.
audit
Log unknown users to the system log.
Available conditions are:
issystem
Succeed if the user is a system user.
isregular
Succeed if the user is a regular user.
MODULE TYPES PROVIDED
All module types (account, auth, password and session) are provided.
RETURN VALUES
PAM_SUCCESS
The condition was true.
PAM_BUF_ERR
Memory buffer error.
PAM_CONV_ERR
The conversation method supplied by the application failed to obtain the username.
PAM_INCOMPLETE
The conversation method supplied by the application returned PAM_CONV_AGAIN.
PAM_AUTH_ERR
The condition was false.
PAM_SERVICE_ERR
A service error occurred or the arguments can't be parsed correctly.
PAM_USER_UNKNOWN
User was not found.
EXAMPLES
Skip remaining modules if the user is a system user:
account sufficient pam_usertype.so issystem
SEE ALSO
login.defs(5), pam(8)
AUTHOR
Pavel Březina <pbrezina@redhat.com>
Linux-PAM 05/07/2023 PAM_USERTYPE(8)