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手册页第 5 部分:标准、环境和宏 Oracle Solaris 11.1 Information Library (简体中文) |
- PAM account management module for UNIX
pam_list.so.1
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 length 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, deny, or compat options are specified, 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.
If compat option is specified then the module will look for +/- entries in the local /etc/passwd file. Other entries in this file will be counted as + entries. If no relevant entry exits for the user, pam_list will deny the access.
The following options can be passed to the module:
The full pathname to a file of allowed users and/or netgroups. Only one of allow= or deny= can be specified.
Activate compat mode.
The full pathname to a file of denied users and/or netgroups. Only one of deny= or allow= can be specified.
Provide syslog(3C) debugging information at the LOG_AUTH | LOG_DEBUG level.
The module should only perform netgroup matches on the username. This is the default option.
The username should not be used in the netgroup match.
Only the host should be used in netgroup matches.
The hostname should not be used in netgroup matches.
Return PAM_IGNORE if the account (PAM_USER) is a role. This is the default.
Evaluate the rules even if PAM_USER is a role account.
The user and hostname must be in the same netgroup.
The following error values are returned:
An invalid set of module options was specified in the PAM configuration (seepam.conf(4)) for this module, or the user/netgroup file could not be opened.
A memory buffer error occurred.
The module is ignored, as it is not participating in the result.
The user is not on the allow list or is on the deny list.
The account is valid for use at this time.
No account is present for the user
示例 1 Using pam_list in default mode
The changes to /etc/pam.conf would be:
other account requisite pam_roles.so.1 other account required pam_unix_account.so.1 other account required pam_list.so.1
The equivalent PAM configuration in /etc/pam.d/ would be the following entries in /etc/pam.d/other:
account requisite pam_roles.so.1 account required pam_unix_account.so.1 account required pam_list.so.1
In the case of default mode or compat mode, the important lines in /etc/passwd appear as follows:
+loginname - user is approved -loginname - user is disapproved +@netgroup - netgroup members are approved -@netgroup - netgroup members are disapproved
示例 2 Using pam_list with allow file
The changes to /etc/pam.conf would be:
other account requisite pam_roles.so.1 other account required pam_unix_account.so.1 other account required pam_list.so.1 allow=/etc/users.allow
The equivalent PAM configuration in /etc/pam.d/ would be the following entries in /etc/pam.d/other:
account requisite pam_roles.so.1 account required pam_unix_account.so.1 account required pam_list.so.1 allow=/etc/users.allow
/etc/users.allow contains:
root localloginname remoteloginname @netgroup
See attributes(5) for descriptions of the following attributes:
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The interfaces in libpam(3LIB) are MT-Safe only if each thread within the multithreaded application uses its own PAM handle.
pam(3PAM), pam_authenticate(3PAM), pam_sm_acct_mgmt(3PAM), syslog(3C), libpam(3LIB), nsswitch.conf(4), pam.conf(4), attributes(5)