sandbox_selinux(8)					      SELinux Policy sandbox						sandbox_selinux(8)

NAME

       sandbox_selinux - Security Enhanced Linux Policy for the sandbox processes

DESCRIPTION

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

       The  sandbox  processes execute with the sandbox_t SELinux type. You can check if you have these processes running by executing the ps com-
       mand with the -Z qualifier.

       For example:

       ps -eZ | grep sandbox_t

ENTRYPOINTS

       The sandbox_t SELinux type can be entered via the file_type file type.

       The default entrypoint paths for the sandbox_t domain are the following:

       all files on the system

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 sandbox_t can be used to make the process type sandbox_t permissive. SELinux does not deny access to permis-
       sive process types, but the AVC (SELinux denials) messages are still generated.

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 possible.

       If  you want to deny user domains applications to map a memory region as both executable and writable, this is dangerous and the executable
       should be reported in bugzilla, you must turn on the deny_execmem boolean. Enabled by default.

       setsebool -P deny_execmem 1

       If you want to deny any process from ptracing or debugging any other processes, you must  turn  on  the	deny_ptrace  boolean.  Enabled	by
       default.

       setsebool -P deny_ptrace 1

       If you want to allow all domains to use other domains file descriptors, you must turn on the domain_fd_use boolean. Enabled by default.

       setsebool -P domain_fd_use 1

       If  you	want  to  allow  all domains to have the kernel load modules, you must turn on the domain_kernel_load_modules boolean. Disabled by
       default.

       setsebool -P domain_kernel_load_modules 1

       If you want to allow all domains to execute in fips_mode, you must turn on the fips_mode boolean. Enabled by default.

       setsebool -P fips_mode 1

       If you want to enable reading of urandom for all domains, you must turn on the global_ssp boolean. Disabled by default.

       setsebool -P global_ssp 1

NSSWITCH DOMAIN

       If you want to allow users to resolve user passwd entries directly from ldap rather then using a sssd server 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 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,  sand-
       box_xserver_t, sandbox_web_t, sandbox_x_client_t, sandbox_x_t, sandbox_net_client_t, you must turn on the kerberos_enabled boolean.

       setsebool -P kerberos_enabled 1

MANAGED FILES

       The  SELinux  process  type  sandbox_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.

       sandbox_file_t

       sandbox_tmpfs_type

	    all sandbox content in tmpfs file systems

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.

       STANDARD FILE CONTEXT

       SELinux	defines the file context types for the sandbox, if you wanted to store files with these types in a diffent paths, you need to exe-
       cute the semanage command to sepecify alternate labeling and then use restorecon to put the labels on disk.

       semanage fcontext -a -t sandbox_devpts_t '/srv/sandbox/content(/.*)?'
       restorecon -R -v /srv/mysandbox_content

       Note: SELinux often uses regular expressions to specify labels that match multiple files.

       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 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.

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.

       semanage boolean can also be used to manipulate the booleans

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

AUTHOR

       This manual page was auto-generated using sepolicy manpage .

SEE ALSO

       selinux(8),  sandbox(8),  semanage(8), restorecon(8), chcon(1), sepolicy(8) , setsebool(8), sandbox_min_selinux(8), sandbox_min_selinux(8),
       sandbox_min_client_selinux(8),	    sandbox_min_client_selinux(8),	 sandbox_net_selinux(8),       sandbox_net_selinux(8),	     sand-
       box_net_client_selinux(8),  sandbox_net_client_selinux(8),  sandbox_web_selinux(8),  sandbox_web_selinux(8), sandbox_web_client_selinux(8),
       sandbox_web_client_selinux(8), sandbox_x_selinux(8), sandbox_x_selinux(8), sandbox_x_client_selinux(8), sandbox_x_client_selinux(8),  sand-
       box_xserver_selinux(8), sandbox_xserver_selinux(8)

sandbox 							     14-06-10							sandbox_selinux(8)