pam_selinux man page on ElementaryOS

Man page or keyword search:  
man Server   4994 pages
apropos Keyword Search (all sections)
Output format
ElementaryOS logo
[printable version]

PAM_SELINUX(8)		       Linux-PAM Manual			PAM_SELINUX(8)

NAME
       pam_selinux - PAM module to set the default security context

SYNOPSIS
       pam_selinux.so [open] [close] [restore] [nottys] [debug] [verbose]
		      [select_context] [env_params] [use_current_range]

DESCRIPTION
       pam_selinux is a PAM module that sets up the default SELinux security
       context for the next executed process.

       When a new session is started, the open_session part of the module
       computes and sets up the execution security context used for the next
       execve(2) call, the file security context for the controlling terminal,
       and the security context used for creating a new kernel keyring.

       When the session is ended, the close_session part of the module
       restores old security contexts that were in effect before the change
       made by the open_session part of the module.

       Adding pam_selinux into the PAM stack might disrupt behavior of other
       PAM modules which execute applications. To avoid that, pam_selinux.so
       open should be placed after such modules in the PAM stack, and
       pam_selinux.so close should be placed before them. When such a
       placement is not feasible, pam_selinux.so restore could be used to
       temporary restore original security contexts.

OPTIONS
       open
	   Only execute the open_session part of the module.

       close
	   Only execute the close_session part of the module.

       restore
	   In open_session part of the module, temporarily restore the
	   security contexts as they were before the previous call of the
	   module. Another call of this module without the restore option will
	   set up the new security contexts again.

       nottys
	   Do not setup security context of the controlling terminal.

       debug
	   Turn on debug messages via syslog(3).

       verbose
	   Attempt to inform the user when security context is set.

       select_context
	   Attempt to ask the user for a custom security context role. If MLS
	   is on, ask also for sensitivity level.

       env_params
	   Attempt to obtain a custom security context role from PAM
	   environment. If MLS is on, obtain also sensitivity level. This
	   option and the select_context option are mutually exclusive. The
	   respective PAM environment variables are SELINUX_ROLE_REQUESTED,
	   SELINUX_LEVEL_REQUESTED, and SELINUX_USE_CURRENT_RANGE. The first
	   two variables are self describing and the last one if set to 1
	   makes the PAM module behave as if the use_current_range was
	   specified on the command line of the module.

       use_current_range
	   Use the sensitivity level of the current process for the user
	   context instead of the default level. Also suppresses asking of the
	   sensitivity level from the user or obtaining it from PAM
	   environment.

MODULE TYPES PROVIDED
       Only the session module type is provided.

RETURN VALUES
       PAM_SUCCESS
	   The security context was set successfully.

       PAM_SESSION_ERR
	   Unable to get or set a valid context.

       PAM_USER_UNKNOWN
	   The user is not known to the system.

       PAM_BUF_ERR
	   Memory allocation error.

EXAMPLES
	   auth	    required  pam_unix.so
	   session  required  pam_permit.so
	   session  optional  pam_selinux.so

SEE ALSO
       execve(2), tty(4), pam.d(5), pam(7), selinux(8)

AUTHOR
       pam_selinux was written by Dan Walsh <dwalsh@redhat.com>.

Linux-PAM Manual		  01/14/2014			PAM_SELINUX(8)
[top]

List of man pages available for ElementaryOS

Copyright (c) for man pages and the logo by the respective OS vendor.

For those who want to learn more, the polarhome community provides shell access and support.

[legal] [privacy] [GNU] [policy] [cookies] [netiquette] [sponsors] [FAQ]
Tweet
Polarhome, production since 1999.
Member of Polarhome portal.
Based on Fawad Halim's script.
....................................................................
Vote for polarhome
Free Shell Accounts :: the biggest list on the net