sandbox_net_selinux(8)

1sandbox_net_selinux(8)    SELinux Policy sandbox_net    sandbox_net_selinux(8)
2
3
4

NAME

6       sandbox_net_selinux  -  Security  Enhanced  Linux  Policy for the sand‐
7       box_net processes
8

DESCRIPTION

10       Security-Enhanced Linux secures the sandbox_net processes via  flexible
11       mandatory access control.
12
13       The  sandbox_net processes execute with the sandbox_net_t SELinux type.
14       You can check if you have these processes running by executing  the  ps
15       command with the -Z qualifier.
16
17       For example:
18
19       ps -eZ | grep sandbox_net_t
20
21
22

PROCESS TYPES

24       SELinux defines process types (domains) for each process running on the
25       system
26
27       You can see the context of a process using the -Z option to ps
28
29       Policy governs the access confined processes have  to  files.   SELinux
30       sandbox_net policy is very flexible allowing users to setup their sand‐
31       box_net processes in as secure a method as possible.
32
33       The following process types are defined for sandbox_net:
34
35       sandbox_net_t, sandbox_net_client_t
36
37       Note: semanage permissive -a sandbox_net_t can  be  used  to  make  the
38       process  type sandbox_net_t permissive. SELinux does not deny access to
39       permissive process types, but the AVC (SELinux  denials)  messages  are
40       still generated.
41
42

MCS Constrained

44       The  SELinux process type sandbox_net_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.
50
51       For example one process might be launched with  sandbox_net_t:s0:c1,c2,
52       and  another  process launched with sandbox_net_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
57
58

BOOLEANS

60       SELinux  policy  is customizable based on least access required.  sand‐
61       box_net policy is extremely flexible and has several booleans that  al‐
62       low  you to manipulate the policy and run sandbox_net with the tightest
63       access possible.
64
65
66
67       If you want to deny user domains applications to map a memory region as
68       both  executable  and  writable,  this  is dangerous and the executable
69       should be reported in bugzilla, you must turn on the deny_execmem bool‐
70       ean. Disabled by default.
71
72       setsebool -P deny_execmem 1
73
74
75
76       If  you  want  to  allow  system  to run with NIS, you must turn on the
77       nis_enabled boolean. Disabled by default.
78
79       setsebool -P nis_enabled 1
80
81
82

MANAGED FILES

84       The SELinux process type sandbox_net_t can manage  files  labeled  with
85       the  following  file types.  The paths listed are the default paths for
86       these file types.  Note the processes UID still need to have  DAC  per‐
87       missions.
88
89       fusefs_t
90
91            /var/run/user/[0-9]+/gvfs
92
93       krb5_host_rcache_t
94
95            /var/tmp/krb5_0.rcache2
96            /var/cache/krb5rcache(/.*)?
97            /var/tmp/nfs_0
98            /var/tmp/DNS_25
99            /var/tmp/host_0
100            /var/tmp/imap_0
101            /var/tmp/HTTP_23
102            /var/tmp/HTTP_48
103            /var/tmp/ldap_55
104            /var/tmp/ldap_487
105            /var/tmp/ldapmap1_0
106
107       mozilla_plugin_tmpfs_t
108
109
110       sandbox_file_t
111
112
113       sandbox_net_client_tmpfs_t
114
115
116       security_t
117
118            /selinux
119
120

COMMANDS

122       semanage  fcontext  can also be used to manipulate default file context
123       mappings.
124
125       semanage permissive can also be used to manipulate  whether  or  not  a
126       process type is permissive.
127
128       semanage  module can also be used to enable/disable/install/remove pol‐
129       icy modules.
130
131       semanage boolean can also be used to manipulate the booleans
132
133
134       system-config-selinux is a GUI tool available to customize SELinux pol‐
135       icy settings.
136
137

AUTHOR

139       This manual page was auto-generated using sepolicy manpage .
140
141