05-31-2012
Tks for your answer, I had this idea too, but the solution was elsewhere. In profile scripts, another scripts were called with the "hostname" command. As the hostname change during restore, scripts were not called ...
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goodafternoon people.
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LEARN ABOUT CENTOS
pam_selinux
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(8), selinux(8)
AUTHOR
pam_selinux was written by Dan Walsh <dwalsh@redhat.com>.
Linux-PAM Manual 06/18/2013 PAM_SELINUX(8)