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NAME

pam_list - PAM account management module for UNIX
 

SYNOPSIS

 pam_list.so.1

DESCRIPTION

The pam_list 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 valid on this host based on a list of users and/or netgroups in the given file. The users and netgroups are separated by newline character. Netgroups are specified with character '@' as prefix before name of netgroup in the list. The maximum line lenght is 1023 characters.

The username is the value of PAM_USER. The host is the value of PAM_RHOST or, if PAM_RHOST is not set, the value of the localhost as returned by gethostname(3C) is used.

If neither of the allow or deny options are specified then the module will look for +/- entries in the local /etc/passwd file. If this style is used, nsswitch.conf(4) must not be configured with compat for the passwd database. If no relevant +/- entry exists for the user, pam_list is not participating in result.

The following options can be passed to the module:

allow=

The full pathname to a file of allowed users and/or netgroups. Only one of allow= or deny= can be specified.

deny=

The full pathname to a file of denied users and/or netgroups. Only one of deny= or allow= can be specified.

debug

Provide syslog(3C) debugging information at the LOG_AUTH | LOG_DEBUG level.

user

The module should only perform netgroup matches on the username. This is the default option.

nouser

The username should not be used in the netgroup match.

host

Only the host should be used in netgroup matches.

nohost

The hostname should not be used in netgroup matches.

user_host_exact

The user and hostname must be in the same netgroup.

ERRORS

The following error values are returned:

PAM_SERVICE_ERR

An invalid set of module options was given in the pam.conf(4) for this module, or the user/netgroup file could not be opened.

PAM_BUF_ERR

A memory buffer error occurred.

PAM_IGNORE

The module is ignored, as it is not participating in the result.

PAM_PERM_DENIED

The user is not on the allow list or is on the deny list.

PAM_SUCCESS

The account is valid for use at this time.

PAM_USER_UNKNOWN

No account is present for the user

ATTRIBUTES

See attributes(5) for descriptions of the following attributes:

ATTRIBUTE TYPE ATTRIBUTE VALUE Interface Stability Committed MT-Level

The interfaces in libpam(3LIB) are MT-Safe only if each thread within the multithreaded application uses its own PAM handle.  

SEE ALSO

pam(3PAM), pam_authenticate(3PAM), pam_sm_acct_mgmt(3PAM), syslog(3C), libpam(3LIB), nsswitch.conf(4), pam.conf(4), attributes(5)

Index

NAME

SYNOPSIS

DESCRIPTION

ERRORS

ATTRIBUTES

SEE ALSO

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