sandbox_selinux(8) sandbox SELinux Policy documentation sandbox_selinux(8)NAMEsandbox_selinux - Security Enhanced Linux Policy for the sandbox pro‐
cesses
DESCRIPTION
Security-Enhanced Linux secures the sandbox processes via flexible
mandatory access control.
BOOLEANS
SELinux policy is customizable based on least access required. sandbox
policy is extremely flexible and has several booleans that allow you to
manipulate the policy and run sandbox with the tightest access possi‐
ble.
If you want to allow unconfined users to transition to the chrome sand‐
box domains when running chrome-sandbo, you must turn on the uncon‐
fined_chrome_sandbox_transition boolean.
setsebool -P unconfined_chrome_sandbox_transition 1
NSSWITCH DOMAIN
If you want to allow users to login using a sssd serve for the sand‐
box_min_t, sandbox_net_t, sandbox_web_client_t, sandbox_xserver_t,
sandbox_web_t, sandbox_x_client_t, sandbox_x_t, sandbox_net_client_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
sandbox_min_t, sandbox_net_t, sandbox_web_client_t, sandbox_xserver_t,
sandbox_web_t, sandbox_x_client_t, sandbox_x_t, sandbox_net_client_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 sandbox_min_t, sand‐
box_net_t, sandbox_web_client_t, sandbox_xserver_t, sandbox_web_t,
sandbox_x_client_t, sandbox_x_t, sandbox_net_client_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 sandbox policy is very flexible allowing users to setup their
sandbox processes in as secure a method as possible.
The following file types are defined for sandbox:
sandbox_devpts_t
- Set files with the sandbox_devpts_t type, if you want to treat the
files as sandbox devpts data.
sandbox_exec_t
- Set files with the sandbox_exec_t type, if you want to transition an
executable to the sandbox_t domain.
sandbox_file_t
- Set files with the sandbox_file_t type, if you want to treat the
files as sandbox content.
sandbox_min_client_tmpfs_t
- Set files with the sandbox_min_client_tmpfs_t type, if you want to
store sandbox min client files on a tmpfs file system.
sandbox_net_client_tmpfs_t
- Set files with the sandbox_net_client_tmpfs_t type, if you want to
store sandbox net client files on a tmpfs file system.
sandbox_web_client_tmpfs_t
- Set files with the sandbox_web_client_tmpfs_t type, if you want to
store sandbox web client files on a tmpfs file system.
sandbox_x_client_tmpfs_t
- Set files with the sandbox_x_client_tmpfs_t type, if you want to
store sandbox x client files on a tmpfs file system.
sandbox_xserver_tmpfs_t
- Set files with the sandbox_xserver_tmpfs_t type, if you want to store
sandbox xserver files on a tmpfs file system.
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
sandbox policy is very flexible allowing users to setup their sandbox
processes in as secure a method as possible.
The following process types are defined for sandbox:
sandbox_x_client_t, sandbox_net_client_t, sandbox_xserver_t, sandbox_x_t, sandbox_web_client_t, sandbox_min_t, sandbox_net_t, sandbox_web_t, sandbox_min_client_t, sandbox_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), sandbox(8), semanage(8), restorecon(8), chcon(1) , setse‐
bool(8)dwalsh@redhat.com sandbox sandbox_selinux(8)
