sandbox_x_selinux(8)

1sandbox_x_selinux(8)       SELinux Policy sandbox_x       sandbox_x_selinux(8)
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NAME

6       sandbox_x_selinux  -  Security  Enhanced Linux Policy for the sandbox_x
7       processes
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DESCRIPTION

10       Security-Enhanced Linux secures the sandbox_x  processes  via  flexible
11       mandatory access control.
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13       The  sandbox_x processes execute with the sandbox_x_t SELinux type. You
14       can check if you have these processes running by executing the ps  com‐
15       mand with the -Z qualifier.
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17       For example:
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19       ps -eZ | grep sandbox_x_t
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PROCESS TYPES

24       SELinux defines process types (domains) for each process running on the
25       system
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27       You can see the context of a process using the -Z option to ps
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29       Policy governs the access confined processes have  to  files.   SELinux
30       sandbox_x  policy  is very flexible allowing users to setup their sand‐
31       box_x processes in as secure a method as possible.
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33       The following process types are defined for sandbox_x:
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35       sandbox_xserver_t, sandbox_x_t, sandbox_x_client_t
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37       Note: semanage permissive -a  sandbox_x_t  can  be  used  to  make  the
38       process  type  sandbox_x_t  permissive. SELinux does not deny access to
39       permissive process types, but the AVC (SELinux  denials)  messages  are
40       still generated.
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MCS Constrained

44       The  SELinux  process  type sandbox_x_t is an MCS (Multi Category Secu‐
45       rity) constrained type.  Sometimes this separation is  referred  to  as
46       sVirt.  These types are usually used for securing multi-tenant environ‐
47       ments, such as virtualization, containers or separation of users.   The
48       tools used to launch MCS types, pick out a different MCS label for each
49       process group.
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51       For example one process might be  launched  with  sandbox_x_t:s0:c1,c2,
52       and  another  process  launched  with sandbox_x_t:s0:c3,c4. The SELinux
53       kernel only allows these processes can only write  to  content  with  a
54       matching  MCS  label,  or a MCS Label of s0. A process running with the
55       MCS level of s0:c1,c2 is not allowed to write to content with  the  MCS
56       label of s0:c3,c4
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BOOLEANS

60       SELinux  policy  is customizable based on least access required.  sand‐
61       box_x policy is extremely flexible and has several booleans that  allow
62       you to manipulate the policy and run sandbox_x with the tightest access
63       possible.
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67       If you want to allow users to resolve user passwd entries directly from
68       ldap  rather  then  using  a  sssd server, you must turn on the authlo‐
69       gin_nsswitch_use_ldap boolean. Disabled by default.
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71       setsebool -P authlogin_nsswitch_use_ldap 1
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75       If you want to deny user domains applications to map a memory region as
76       both  executable  and  writable,  this  is dangerous and the executable
77       should be reported in bugzilla, you must turn on the deny_execmem bool‐
78       ean. Enabled by default.
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80       setsebool -P deny_execmem 1
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84       If you want to allow all domains to execute in fips_mode, you must turn
85       on the fips_mode boolean. Enabled by default.
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87       setsebool -P fips_mode 1
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91       If you want to allow confined applications to run  with  kerberos,  you
92       must turn on the kerberos_enabled boolean. Disabled by default.
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94       setsebool -P kerberos_enabled 1
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98       If  you  want  to  allow  system  to run with NIS, you must turn on the
99       nis_enabled boolean. Disabled by default.
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101       setsebool -P nis_enabled 1
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105       If you want to allow confined applications to use nscd  shared  memory,
106       you must turn on the nscd_use_shm boolean. Disabled by default.
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108       setsebool -P nscd_use_shm 1
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MANAGED FILES

113       The  SELinux process type sandbox_x_t can manage files labeled with the
114       following file types.  The paths listed are the default paths for these
115       file types.  Note the processes UID still need to have DAC permissions.
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117       cifs_t
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120       fusefs_t
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122            /var/run/user/[^/]*/gvfs
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124       mozilla_plugin_rw_t
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126            /usr/lib/mozilla/plugins-wrapped(/.*)?
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128       mozilla_plugin_tmpfs_t
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131       nfs_t
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134       sandbox_file_t
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137       sandbox_x_client_tmpfs_t
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140       security_t
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142            /selinux
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144       user_tmp_t
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146            /dev/shm/mono.*
147            /var/run/user(/.*)?
148            /tmp/.ICE-unix(/.*)?
149            /tmp/.X11-unix(/.*)?
150            /dev/shm/pulse-shm.*
151            /tmp/.X0-lock
152            /tmp/hsperfdata_root
153            /var/tmp/hsperfdata_root
154            /home/[^/]+/tmp
155            /home/[^/]+/.tmp
156            /tmp/gconfd-[^/]+
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COMMANDS

160       semanage  fcontext  can also be used to manipulate default file context
161       mappings.
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163       semanage permissive can also be used to manipulate  whether  or  not  a
164       process type is permissive.
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166       semanage  module can also be used to enable/disable/install/remove pol‐
167       icy modules.
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169       semanage boolean can also be used to manipulate the booleans
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172       system-config-selinux is a GUI tool available to customize SELinux pol‐
173       icy settings.
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AUTHOR

177       This manual page was auto-generated using sepolicy manpage .
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