1unconfined_selinux(8)unconfined SELinux Policy documentatiounnconfined_selinux(8)
2
3
4

NAME

6       unconfined_r - Unconfined user role - Security Enhanced Linux Policy
7
8

DESCRIPTION

10       SELinux  supports  Roles  Based Access Control (RBAC), some Linux roles
11       are login roles, while other roles need to be transition into.
12
13       Note: Examples in this man page will use the staff_u SELinux user.
14
15       Non login roles are usually used for administrative tasks. For example,
16       tasks  that  require root privileges.  Roles control which types a user
17       can run processes with. Roles often  have  default  types  assigned  to
18       them.
19
20       The default type for the unconfined_r role is unconfined_t.
21
22       The newrole program to transition directly to this role.
23
24       newrole -r unconfined_r -t unconfined_t
25
26       sudo is the preferred method to do transition from one role to another.
27       You setup sudo to transition to unconfined_r by adding a  similar  line
28       to the /etc/sudoers file.
29
30       USERNAME ALL=(ALL) ROLE=unconfined_r TYPE=unconfined_t COMMAND
31
32       sudo will run COMMAND as staff_u:unconfined_r:unconfined_t:LEVEL
33
34       When  using  a a non login role, you need to setup SELinux so that your
35       SELinux user can reach unconfined_r role.
36
37       Execute the following to see all of the assigned SELinux roles:
38
39       semanage user -l
40
41       You need to add unconfined_r to the staff_u user.  You could setup  the
42       staff_u  user  to  be  able to use the unconfined_r role with a command
43       like:
44
45       $ semanage user -m -R 'staff_r system_r unconfined_r' staff_u
46
47
48

BOOLEANS

50       SELinux policy is customizable based on least access required.   uncon‐
51       fined  policy is extremely flexible and has several booleans that allow
52       you to manipulate the policy  and  run  unconfined  with  the  tightest
53       access possible.
54
55
56
57       If you want to allow unconfined users to transition to the chrome sand‐
58       box domains when running chrome-sandbox, you must turn  on  the  uncon‐
59       fined_chrome_sandbox_transition boolean. Enabled by default.
60
61       setsebool -P unconfined_chrome_sandbox_transition 1
62
63
64
65       If  you want to allow a user to login as an unconfined domain, you must
66       turn on the unconfined_login boolean. Enabled by default.
67
68       setsebool -P unconfined_login 1
69
70
71
72       If you want to allow unconfined users  to  transition  to  the  Mozilla
73       plugin domain when running xulrunner plugin-container, you must turn on
74       the unconfined_mozilla_plugin_transition boolean. Enabled by default.
75
76       setsebool -P unconfined_mozilla_plugin_transition 1
77
78
79
80       If you want to allow users to resolve user passwd entries directly from
81       ldap  rather  then  using  a  sssd server, you must turn on the authlo‐
82       gin_nsswitch_use_ldap boolean. Disabled by default.
83
84       setsebool -P authlogin_nsswitch_use_ldap 1
85
86
87
88       If you want to determine whether crond can execute  jobs  in  the  user
89       domain  as  opposed to the the generic cronjob domain, you must turn on
90       the cron_userdomain_transition boolean. Enabled by default.
91
92       setsebool -P cron_userdomain_transition 1
93
94
95
96       If you want to deny user domains applications to map a memory region as
97       both  executable  and  writable,  this  is dangerous and the executable
98       should be reported in bugzilla, you must turn on the deny_execmem bool‐
99       ean. Enabled by default.
100
101       setsebool -P deny_execmem 1
102
103
104
105       If  you  want  to deny any process from ptracing or debugging any other
106       processes, you  must  turn  on  the  deny_ptrace  boolean.  Enabled  by
107       default.
108
109       setsebool -P deny_ptrace 1
110
111
112
113       If you want to allow all domains to execute in fips_mode, you must turn
114       on the fips_mode boolean. Enabled by default.
115
116       setsebool -P fips_mode 1
117
118
119
120       If you want to allow confined applications to run  with  kerberos,  you
121       must turn on the kerberos_enabled boolean. Enabled by default.
122
123       setsebool -P kerberos_enabled 1
124
125
126
127       If  you  want  to control the ability to mmap a low area of the address
128       space, as configured by /proc/sys/vm/mmap_min_addr, you  must  turn  on
129       the mmap_low_allowed boolean. Disabled by default.
130
131       setsebool -P mmap_low_allowed 1
132
133
134
135       If  you  want  to  allow  system  to run with NIS, you must turn on the
136       nis_enabled boolean. Disabled by default.
137
138       setsebool -P nis_enabled 1
139
140
141
142       If you want to allow confined applications to use nscd  shared  memory,
143       you must turn on the nscd_use_shm boolean. Disabled by default.
144
145       setsebool -P nscd_use_shm 1
146
147
148
149       If  you  want  to  disable  kernel module loading, you must turn on the
150       secure_mode_insmod boolean. Enabled by default.
151
152       setsebool -P secure_mode_insmod 1
153
154
155
156       If you want to allow unconfined executables to make their  heap  memory
157       executable.   Doing  this  is  a  really bad idea. Probably indicates a
158       badly coded executable, but could indicate an attack.  This  executable
159       should   be   reported  in  bugzilla,  you  must  turn  on  the  selin‐
160       uxuser_execheap boolean. Disabled by default.
161
162       setsebool -P selinuxuser_execheap 1
163
164
165
166       If you want to  allow  all  unconfined  executables  to  use  libraries
167       requiring  text  relocation  that  are not labeled textrel_shlib_t, you
168       must turn on the selinuxuser_execmod boolean. Enabled by default.
169
170       setsebool -P selinuxuser_execmod 1
171
172
173
174       If you want to allow unconfined executables to make  their  stack  exe‐
175       cutable.   This  should  never, ever be necessary. Probably indicates a
176       badly coded executable, but could indicate an attack.  This  executable
177       should  be reported in bugzilla, you must turn on the selinuxuser_exec‐
178       stack boolean. Enabled by default.
179
180       setsebool -P selinuxuser_execstack 1
181
182
183
184       If you want to support NFS home  directories,  you  must  turn  on  the
185       use_nfs_home_dirs boolean. Disabled by default.
186
187       setsebool -P use_nfs_home_dirs 1
188
189
190
191       If  you  want  to  support SAMBA home directories, you must turn on the
192       use_samba_home_dirs boolean. Disabled by default.
193
194       setsebool -P use_samba_home_dirs 1
195
196
197

MANAGED FILES

199       The SELinux process type unconfined_t can manage files labeled with the
200       following file types.  The paths listed are the default paths for these
201       file types.  Note the processes UID still need to have DAC permissions.
202
203       file_type
204
205            all files on the system
206
207

COMMANDS

209       semanage fcontext can also be used to manipulate default  file  context
210       mappings.
211
212       semanage  permissive  can  also  be used to manipulate whether or not a
213       process type is permissive.
214
215       semanage module can also be used to enable/disable/install/remove  pol‐
216       icy modules.
217
218       semanage boolean can also be used to manipulate the booleans
219
220
221       system-config-selinux is a GUI tool available to customize SELinux pol‐
222       icy settings.
223
224

AUTHOR

226       This manual page was auto-generated using sepolicy manpage .
227
228

SEE ALSO

230       selinux(8), unconfined(8), semanage(8), restorecon(8), chcon(1), sepol‐
231       icy(8),     setsebool(8),     unconfined_cronjob_selinux(8),     uncon‐
232       fined_dbusd_selinux(8),       unconfined_mount_selinux(8),       uncon‐
233       fined_munin_plugin_selinux(8),  unconfined_sendmail_selinux(8),  uncon‐
234       fined_service_selinux(8), unconfined_t_selinux(8)
235
236
237
238mgrepl@redhat.com                 unconfined             unconfined_selinux(8)
Impressum