pam_unix(8) [netbsd man page]
PAM_UNIX(8) BSD System Manager's Manual PAM_UNIX(8) NAME
pam_unix -- UNIX PAM module SYNOPSIS
[service-name] module-type control-flag pam_unix [options] DESCRIPTION
The UNIX authentication service module for PAM provides functionality for two PAM categories: authentication and account management. In terms of the module-type parameter, they are the ``auth'' and ``account'' features. It also provides a null function for session management. UNIX Authentication Module The UNIX authentication component provides functions to verify the identity of a user (pam_sm_authenticate()), which obtains the relevant passwd(5) entry. It prompts the user for a password and verifies that this is correct with crypt(3). The following options may be passed to the authentication module: debug syslog(3) debugging information at LOG_DEBUG level. use_first_pass If the authentication module is not the first in the stack, and a previous module obtained the user's password, that password is used to authenticate the user. If this fails, the authentication module returns failure without prompting the user for a password. This option has no effect if the authentication module is the first in the stack, or if no previous modules obtained the user's password. try_first_pass This option is similar to the use_first_pass option, except that if the previously obtained password fails, the user is prompted for another password. auth_as_self This option will require the user to authenticate himself as the user given by getlogin(2), not as the account they are attempting to access. This is primarily for services like su(1), where the user's ability to retype their own password might be deemed sufficient. nullok If the password database has no password for the entity being authenticated, then this option will forgo password prompting, and silently allow authentication to succeed. UNIX Account Management Module The UNIX account management component provides a function to perform account management, pam_sm_acct_mgmt(). The function verifies that the authenticated user is allowed to login to the local user account by checking the password expiry date. The following options may be passed to the management module: debug syslog(3) debugging information at LOG_DEBUG level. UNIX Password Management Module The UNIX password management component provides a function to perform account management, pam_sm_chauthtok(). The function changes the user's password. The following options may be passed to the password module: debug syslog(3) debugging information at LOG_DEBUG level. no_warn suppress warning messages to the user. These messages include reasons why the user's authentication attempt was declined. passwd_db=name Change the user's password only the specified password database. Valid password database names are: files local password file nis NIS password database FILES
/etc/master.passwd default UNIX password database. SEE ALSO
passwd(1), getlogin(2), crypt(3), getpwent(3), syslog(3), nsswitch.conf(5), passwd(5), nis(8), pam(8) BSD
February 26, 2005 BSD
Check Out this Related Man Page
pam_dce(5) pam_dce(5) NAME
pam_dce - authentication, account, and password management PAM functions for DCE SYNOPSIS
/usr/lib/security/libpam_dce.so.1 DESCRIPTION
The DCE PAM modules allow integration of DCE into the system entry services (such as login, telnet, rlogin, ftp) through the pam.conf(4) file. The DCE service module for PAM consists of the following three modules: the authentication module, the account management module, and the password management module. All three modules are supported through the same loadable library, /usr/lib/security/libpam_dce.so.1 is the interface that services the requests from These requests will be communicated to the DCE security server, which in turn sends the response back to ilogind. This response is then sent back to /usr/lib/security/libpam_dce.so.1. Authentication Module The authentication module certifies the identity of a user and the user's credentials. It passes the authentication key derived from the user's password to the DCE Security Service. The Security Service then uses the authentication key to certify the user and the user's cre- dentials. The following options can be passed to the authentication module through the pam.conf(4) file: debug Turn on syslog debugging at the LOG_DEBUG level. nowarn Turn off warning messages about not being able to acquire DCE credentials. use_first_pass Use the initial password (entered when the user is authenticated to the first authentication module in the stack) to authenticate with DCE. If the user can not be authenticated or if this is the first authentication module in the stack, quit and do not prompt a password. It is recommended that this option be used only if the authentication mod- ule is designated as optional in the pam.conf(4) configuration file. try_first_pass Use the initial password (entered when the user is authenticated to the first authentication module in the PAM stack) to authenticate with DCE. If the user cannot be authenticated or if this is the first authentication module in the stack, prompt for a password. A user must be authenticated and the user's credentials set before a system entry service can access any file directories owned by the user that are mounted through DTS. Account Management Module The account management module provides a function to perform account management (pam_sm_acct_mgmt(3)). sends a request to the DCE implementation of pam_sm_acct_mgmt(3) function which retrieves the user's account and password expiration information from the DCE Security Server and verifies that the user's account and password have not expired. The following options can be passed to the account module through the pam.conf(4) file: debug Turn on syslog debugging at the LOG_DEBUG level. nowarn Turn off warning messages displayed when a user's account and/or password are going to expire. pam_sm_acct_mgmt(3) calls the function sec_login_inquire_net_info(3) to retrieve information about when a user's account and/or password is going to expire. Password Management Module The password management module provides a function to change passwords (pam_sm_chauthtok(3)). The following options can be passed to the password module through the pam.conf(4) file: debug Turn on syslog debugging at the LOG_DEBUG level. nowarn Turn off warning messages about not being able to change passwords. try_first_pass Use the initial password (entered to the first password module in the PAM stack) to authenticate with DCE. If the user cannot be authenticated or if this is the first password module in the stack, prompt for a password. use_first_pass Use the initial password (entered to the first password module in the PAM stack) to authenticate with DCE. If user cannot be authenticated or if this is the first password module in the stack, quit and do not prompt for a password. It is recommended that this option be used only if the DCE password module is designated as optional in the pam.conf(4) configuration file. SEE ALSO
pam(3), sec_login_setup_identity(3), sec_login_valid_and_cert_ident(3), sec_login_set_context(3), sec_login_inquire_net_info(3), pam.conf(4), pam_unix(5) ilogind(1m) HP DCE
pam_dce(5)