sandbox_min_selinux(8)

1sandbox_min_selinux(8)    SELinux Policy sandbox_min    sandbox_min_selinux(8)
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NAME

6       sandbox_min_selinux  -  Security  Enhanced  Linux  Policy for the sand‐
7       box_min processes
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DESCRIPTION

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

24       The  sandbox_min_t  SELinux  type can be entered via the file_type file
25       type.
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27       The default entrypoint paths for the sandbox_min_t domain are the  fol‐
28       lowing:
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30       all files on the system
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PROCESS TYPES

33       SELinux defines process types (domains) for each process running on the
34       system
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36       You can see the context of a process using the -Z option to ps
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38       Policy governs the access confined processes have  to  files.   SELinux
39       sandbox_min policy is very flexible allowing users to setup their sand‐
40       box_min processes in as secure a method as possible.
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42       The following process types are defined for sandbox_min:
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44       sandbox_min_t, sandbox_min_client_t
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46       Note: semanage permissive -a sandbox_min_t can  be  used  to  make  the
47       process  type sandbox_min_t permissive. SELinux does not deny access to
48       permissive process types, but the AVC (SELinux  denials)  messages  are
49       still generated.
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MCS Constrained

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

69       SELinux  policy  is customizable based on least access required.  sand‐
70       box_min policy is extremely flexible  and  has  several  booleans  that
71       allow  you to manipulate the policy and run sandbox_min with the tight‐
72       est access possible.
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76       If you want to allow users to resolve user passwd entries directly from
77       ldap  rather  then  using  a  sssd server, you must turn on the authlo‐
78       gin_nsswitch_use_ldap boolean. Disabled by default.
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80       setsebool -P authlogin_nsswitch_use_ldap 1
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84       If you want to deny user domains applications to map a memory region as
85       both  executable  and  writable,  this  is dangerous and the executable
86       should be reported in bugzilla, you must turn on the deny_execmem bool‐
87       ean. Enabled by default.
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89       setsebool -P deny_execmem 1
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93       If  you  want  to deny any process from ptracing or debugging any other
94       processes, you  must  turn  on  the  deny_ptrace  boolean.  Enabled  by
95       default.
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97       setsebool -P deny_ptrace 1
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101       If  you  want  to  allow  any  process  to mmap any file on system with
102       attribute file_type, you must turn on the  domain_can_mmap_files  bool‐
103       ean. Enabled by default.
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105       setsebool -P domain_can_mmap_files 1
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109       If  you want to allow all domains write to kmsg_device, while kernel is
110       executed with systemd.log_target=kmsg parameter, you must turn  on  the
111       domain_can_write_kmsg boolean. Disabled by default.
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113       setsebool -P domain_can_write_kmsg 1
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117       If you want to allow all domains to use other domains file descriptors,
118       you must turn on the domain_fd_use boolean. Enabled by default.
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120       setsebool -P domain_fd_use 1
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124       If you want to allow all domains to have the kernel load  modules,  you
125       must  turn  on  the  domain_kernel_load_modules  boolean.  Disabled  by
126       default.
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128       setsebool -P domain_kernel_load_modules 1
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132       If you want to allow all domains to execute in fips_mode, you must turn
133       on the fips_mode boolean. Enabled by default.
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135       setsebool -P fips_mode 1
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139       If you want to enable reading of urandom for all domains, you must turn
140       on the global_ssp boolean. Disabled by default.
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142       setsebool -P global_ssp 1
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146       If you want to allow confined applications to run  with  kerberos,  you
147       must turn on the kerberos_enabled boolean. Enabled by default.
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149       setsebool -P kerberos_enabled 1
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153       If  you  want  to  allow  system  to run with NIS, you must turn on the
154       nis_enabled boolean. Disabled by default.
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156       setsebool -P nis_enabled 1
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160       If you want to allow confined applications to use nscd  shared  memory,
161       you must turn on the nscd_use_shm boolean. Disabled by default.
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163       setsebool -P nscd_use_shm 1
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167       If  you  want  to support fusefs home directories, you must turn on the
168       use_fusefs_home_dirs boolean. Disabled by default.
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170       setsebool -P use_fusefs_home_dirs 1
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174       If you want to support NFS home  directories,  you  must  turn  on  the
175       use_nfs_home_dirs boolean. Disabled by default.
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177       setsebool -P use_nfs_home_dirs 1
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181       If  you  want  to  support SAMBA home directories, you must turn on the
182       use_samba_home_dirs boolean. Disabled by default.
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184       setsebool -P use_samba_home_dirs 1
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MANAGED FILES

189       The SELinux process type sandbox_min_t can manage  files  labeled  with
190       the  following  file types.  The paths listed are the default paths for
191       these file types.  Note the processes UID still need to have  DAC  per‐
192       missions.
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194       cifs_t
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197       fusefs_t
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199            /var/run/user/[^/]*/gvfs
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201       mozilla_plugin_rw_t
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203            /usr/lib/mozilla/plugins-wrapped(/.*)?
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205       mozilla_plugin_tmpfs_t
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208       nfs_t
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211       sandbox_file_t
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214       sandbox_min_client_tmpfs_t
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217       security_t
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219            /selinux
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221       user_tmp_t
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223            /dev/shm/mono.*
224            /var/run/user(/.*)?
225            /tmp/.X11-unix(/.*)?
226            /tmp/.ICE-unix(/.*)?
227            /dev/shm/pulse-shm.*
228            /tmp/.X0-lock
229            /tmp/hsperfdata_root
230            /var/tmp/hsperfdata_root
231            /home/[^/]+/tmp
232            /home/[^/]+/.tmp
233            /tmp/gconfd-[^/]+
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COMMANDS

237       semanage  fcontext  can also be used to manipulate default file context
238       mappings.
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240       semanage permissive can also be used to manipulate  whether  or  not  a
241       process type is permissive.
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243       semanage  module can also be used to enable/disable/install/remove pol‐
244       icy modules.
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246       semanage boolean can also be used to manipulate the booleans
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249       system-config-selinux is a GUI tool available to customize SELinux pol‐
250       icy settings.
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AUTHOR

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