ksmtuned_selinux(8) - Linux man page

Name

ksmtuned_selinux - Security Enhanced Linux Policy for the ksmtuned processes

Description

Security-Enhanced Linux secures the ksmtuned processes via flexible mandatory access control.

The ksmtuned processes execute with the ksmtuned_t SELinux type. You can check if you have these processes running by executing the ps command with the -Z qualifier.

For example:

ps -eZ | grep ksmtuned_t

Entrypoints

The ksmtuned_t SELinux type can be entered via the "ksmtuned_exec_t" file type. The default entrypoint paths for the ksmtuned_t domain are the following:"

/usr/sbin/ksmtuned

Process Types

SELinux defines process types (domains) for each process running on the system

You can see the context of a process using the -Z option to ps

Policy governs the access confined processes have to files. SELinux ksmtuned policy is very flexible allowing users to setup their ksmtuned processes in as secure a method as possible.

The following process types are defined for ksmtuned:

ksmtuned_t

Note: semanage permissive -a ksmtuned_t

can be used to make the process type ksmtuned_t permissive. Permissive process types are not denied access by SELinux. AVC messages will still be generated.

File Contexts

SELinux requires files to have an extended attribute to define the file type.

You can see the context of a file using the -Z option to ls

Policy governs the access confined processes have to these files. SELinux ksmtuned policy is very flexible allowing users to setup their ksmtuned processes in as secure a method as possible.

The following file types are defined for ksmtuned:

ksmtuned_exec_t

- Set files with the ksmtuned_exec_t type, if you want to transition an executable to the ksmtuned_t domain.

ksmtuned_initrc_exec_t

- Set files with the ksmtuned_initrc_exec_t type, if you want to transition an executable to the ksmtuned_initrc_t domain.

ksmtuned_log_t

- Set files with the ksmtuned_log_t type, if you want to treat the data as ksmtuned log data, usually stored under the /var/log directory.

ksmtuned_var_run_t

- Set files with the ksmtuned_var_run_t type, if you want to store the ksmtuned files under the /run directory.

Note: File context can be temporarily modified with the chcon command. If you want to permanently change the file context you need to use the semanage fcontext command. This will modify the SELinux labeling database. You will need to use restorecon to apply the labels.

Managed Files

The SELinux process type ksmtuned_t can manage files labeled with the following file types. The paths listed are the default paths for these file types. Note the processes UID still need to have DAC permissions.

initrc_tmp_t

ksmtuned_log_t

/var/log/ksmtuned.*

ksmtuned_var_run_t

/var/run/ksmtune.pid

mnt_t

/mnt(/[^/]*)

/mnt(/[^/]*)?

/rhev(/[^/]*)?

/media(/[^/]*)

/media(/[^/]*)?

/etc/rhgb(/.*)?

/media/.hal-.*

/net

/afs

/misc

/rhev

root_t

/initrd

sysfs_t

/sys(/.*)?

tmp_t

/tmp

/usr/tmp

/var/tmp

/var/tmp/vi.recover

Commands

semanage fcontext can also be used to manipulate default file context mappings.

semanage permissive can also be used to manipulate whether or not a process type is permissive.

semanage module can also be used to enable/disable/install/remove policy modules.

system-config-selinux is a GUI tool available to customize SELinux policy settings.

Author

This manual page was auto-generated using sepolicy manpage by mgrepl.