init_selinux(8) init SELinux Policy documentation init_selinux(8)NAMEinit_selinux - Security Enhanced Linux Policy for the init processes
DESCRIPTION
Security-Enhanced Linux secures the init processes via flexible manda‐
tory access control.
BOOLEANS
SELinux policy is customizable based on least access required. init
policy is extremely flexible and has several booleans that allow you to
manipulate the policy and run init with the tightest access possible.
If you want to enable support for upstart as the init program, you must
turn on the init_upstart boolean.
setsebool -P init_upstart 1
If you want to enable support for systemd as the init program, you must
turn on the init_systemd boolean.
setsebool -P init_systemd 1
NSSWITCH DOMAIN
If you want to allow users to login using a sssd serve for the init_t,
initrc_t, you must turn on the authlogin_nsswitch_use_ldap boolean.
setsebool -P authlogin_nsswitch_use_ldap 1
If you want to allow confined applications to run with kerberos for the
init_t, initrc_t, you must turn on the allow_kerberos boolean.
setsebool -P allow_kerberos 1
If you want to allow system to run with NI for the init_t, initrc_t,
you must turn on the allow_ypbind boolean.
setsebool -P allow_ypbind 1
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 init policy is very flexible allowing users to setup their init
processes in as secure a method as possible.
The following file types are defined for init:
init_exec_t
- Set files with the init_exec_t type, if you want to transition an
executable to the init_t domain.
Paths:
/usr/sbin/init(ng)?, /sbin/init(ng)?, /bin/systemd, /usr/lib/sys‐
temd/system-generators/[^/]*, /usr/bin/systemd, /sbin/upstart,
/usr/sbin/upstart, /usr/lib/systemd/[^/]*
init_var_run_t
- Set files with the init_var_run_t type, if you want to store the init
files under the /run directory.
initctl_t
- Set files with the initctl_t type, if you want to treat the files as
initctl data.
initrc_devpts_t
- Set files with the initrc_devpts_t type, if you want to treat the
files as initrc devpts data.
initrc_exec_t
- Set files with the initrc_exec_t type, if you want to transition an
executable to the initrc_t domain.
Paths:
/usr/sbin/startx, /etc/rc.d/rc, /usr/libexec/dcc/stop-.*,
/etc/sysconfig/network-scripts/ifup-ipsec, /usr/lib/sys‐
temd/fedora[^/]*, /usr/sbin/start-dirsrv, /usr/sbin/restart-
dirsrv, /usr/sbin/open_init_pty, /usr/sbin/ldap-agent,
/etc/X11/prefdm, /etc/rc.d/rc.[^/]+, /etc/rc.d/init.d/.*,
/usr/libexec/dcc/start-.*, /usr/share/system-config-services/sys‐
tem-config-services-mechanism.py, /usr/sbin/apachectl,
/etc/init.d/.*, /usr/bin/sepg_ctl
initrc_state_t
- Set files with the initrc_state_t type, if you want to treat the
files as initrc state data.
initrc_tmp_t
- Set files with the initrc_tmp_t type, if you want to store initrc
temporary files in the /tmp directories.
initrc_var_run_t
- Set files with the initrc_var_run_t type, if you want to store the
initrc files under the /run directory.
Paths:
/var/run/setmixer_flag, /var/run/runlevel.dir, /var/run/random-
seed, /var/run/utmp
Note: File context can be temporarily modified with the chcon command.
If you want to permanantly change the file context you need to use the
semanage fcontext command. This will modify the SELinux labeling data‐
base. You will need to use restorecon to apply the labels.
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
init policy is very flexible allowing users to setup their init pro‐
cesses in as secure a method as possible.
The following process types are defined for init:
initrc_t, init_t
Note: semanage permissive -a PROCESS_TYPE can be used to make a process
type permissive. Permissive process types are not denied access by
SELinux. AVC messages will still be generated.
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 pol‐
icy modules.
semanage boolean can also be used to manipulate the booleans
system-config-selinux is a GUI tool available to customize SELinux pol‐
icy settings.
AUTHOR
This manual page was autogenerated by genman.py.
SEE ALSOselinux(8), init(8), semanage(8), restorecon(8), chcon(1) , setse‐
bool(8)dwalsh@redhat.com init init_selinux(8)
