mirror of
https://github.com/freebsd/freebsd-src.git
synced 2024-11-30 10:52:50 +00:00
63 lines
2.8 KiB
Plaintext
63 lines
2.8 KiB
Plaintext
|
|
This directory contains configuration files for the Pluggable
|
|
Authentication Modules (PAM) library.
|
|
|
|
Each file details the module chain for a single service, and must be
|
|
named after that service. If no configuration file is found for a
|
|
particular service, the /etc/pam.d/other is used instead. If that
|
|
file does not exist, /etc/pam.conf is searched for entries matching
|
|
the specified service or, failing that, the "other" service.
|
|
|
|
See the pam(3) manual page for an explanation of the workings of the
|
|
PAM library and descriptions of the various files and modules. Below
|
|
is a summary of the format for the pam.conf and /etc/pam.d/* files.
|
|
|
|
Configuration lines take the following form:
|
|
|
|
module-type control-flag module-path arguments
|
|
|
|
Comments are introduced with a hash mark ('#'). Blank lines and lines
|
|
consisting entirely of comments are ignored.
|
|
|
|
The meanings of the different fields are as follows:
|
|
|
|
module-type:
|
|
auth: prompt for a password to authenticate that the user is
|
|
who they say they are, and set any credentials.
|
|
account: non-authentication based authorization, based on time,
|
|
resources, etc.
|
|
session: housekeeping before and/or after login.
|
|
password: update authentication tokens.
|
|
|
|
control-flag: How libpam handles success or failure of the module.
|
|
required: success is required; on failure all remaining
|
|
modules are run, but the request will be denied.
|
|
requisite: success is required, and on failure no remaining
|
|
modules are run.
|
|
sufficient: success is sufficient, and if no previous required
|
|
module failed, no remaining modules are run.
|
|
binding: success is sufficient; on failure all remaining
|
|
modules are run, but the request will be denied.
|
|
optional: ignored unless the other modules return PAM_IGNORE.
|
|
|
|
arguments: Module-specific options, plus some generic ones:
|
|
debug: syslog debug info.
|
|
no_warn: return no warning messages to the application.
|
|
Remove this to feed back to the user the
|
|
reason(s) they are being rejected.
|
|
use_first_pass: try authentication using password from the
|
|
preceding auth module.
|
|
try_first_pass: first try authentication using password from
|
|
the preceding auth module, and if that fails
|
|
prompt for a new password.
|
|
use_mapped_pass: convert cleartext password to a crypto key.
|
|
expose_account: allow printing more info about the user when
|
|
prompting.
|
|
|
|
Note that having a "sufficient" module as the last entry for a
|
|
particular service and module type may result in surprising behaviour.
|
|
To get the intended semantics, add a "required" entry listing the
|
|
pam_deny module at the end of the chain.
|
|
|
|
$FreeBSD$
|