1unconfined_selinux(8)unconfined SELinux Policy documentatiounnconfined_selinux(8)
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6 unconfined_r - Unconfined user role - Security Enhanced Linux Policy
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10 SELinux supports Roles Based Access Control (RBAC), some Linux roles
11 are login roles, while other roles need to be transition into.
12 Note: Examples in this man page will use the staff_u SELinux user.
14 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 The default type for the unconfined_r role is unconfined_t.
21 The newrole program to transition directly to this role.
23 newrole -r unconfined_r -t unconfined_t
25 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 USERNAME ALL=(ALL) ROLE=unconfined_r TYPE=unconfined_t COMMAND
31 sudo will run COMMAND as staff_u:unconfined_r:unconfined_t:LEVEL
33 When using a a non login role, you need to setup SELinux so that your
35 SELinux user can reach unconfined_r role.
36 Execute the following to see all of the assigned SELinux roles:
38 semanage user -l
40 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 $ semanage user -m -R 'staff_r system_r unconfined_r' staff_u
46
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 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 setsebool -P unconfined_chrome_sandbox_transition 1
62 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 setsebool -P unconfined_login 1
69 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 setsebool -P unconfined_mozilla_plugin_transition 1
77 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 setsebool -P authlogin_nsswitch_use_ldap 1
85 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 setsebool -P cron_userdomain_transition 1
93 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 setsebool -P deny_execmem 1
102 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 setsebool -P deny_ptrace 1
110 If you want to allow any process to mmap any file on system with
114 attribute file_type, you must turn on the domain_can_mmap_files bool‐
115 ean. Enabled by default.
116 setsebool -P domain_can_mmap_files 1
118 If you want to allow all domains write to kmsg_device, while kernel is
122 executed with systemd.log_target=kmsg parameter, you must turn on the
123 domain_can_write_kmsg boolean. Disabled by default.
124 setsebool -P domain_can_write_kmsg 1
126 If you want to allow all domains to use other domains file descriptors,
130 you must turn on the domain_fd_use boolean. Enabled by default.
131 setsebool -P domain_fd_use 1
133 If you want to allow all domains to have the kernel load modules, you
137 must turn on the domain_kernel_load_modules boolean. Disabled by
138 default.
139 setsebool -P domain_kernel_load_modules 1
141 If you want to allow all domains to execute in fips_mode, you must turn
145 on the fips_mode boolean. Enabled by default.
146 setsebool -P fips_mode 1
148 If you want to enable reading of urandom for all domains, you must turn
152 on the global_ssp boolean. Disabled by default.
153 setsebool -P global_ssp 1
155 If you want to allow confined applications to run with kerberos, you
159 must turn on the kerberos_enabled boolean. Enabled by default.
160 setsebool -P kerberos_enabled 1
162 If you want to allow logging in and using the system from /dev/console,
166 you must turn on the login_console_enabled boolean. Enabled by default.
167 setsebool -P login_console_enabled 1
169 If you want to control the ability to mmap a low area of the address
173 space, as configured by /proc/sys/vm/mmap_min_addr, you must turn on
174 the mmap_low_allowed boolean. Disabled by default.
175 setsebool -P mmap_low_allowed 1
177 If you want to allow system to run with NIS, you must turn on the
181 nis_enabled boolean. Disabled by default.
182 setsebool -P nis_enabled 1
184 If you want to allow confined applications to use nscd shared memory,
188 you must turn on the nscd_use_shm boolean. Disabled by default.
189 setsebool -P nscd_use_shm 1
191 If you want to disallow programs, such as newrole, from transitioning
195 to administrative user domains, you must turn on the secure_mode bool‐
196 ean. Enabled by default.
197 setsebool -P secure_mode 1
199 If you want to disable kernel module loading, you must turn on the
203 secure_mode_insmod boolean. Enabled by default.
204 setsebool -P secure_mode_insmod 1
206 If you want to boolean to determine whether the system permits loading
210 policy, setting enforcing mode, and changing boolean values. Set this
211 to true and you have to reboot to set it back, you must turn on the
212 secure_mode_policyload boolean. Enabled by default.
213 setsebool -P secure_mode_policyload 1
215 If you want to allow unconfined executables to make their heap memory
219 executable. Doing this is a really bad idea. Probably indicates a
220 badly coded executable, but could indicate an attack. This executable
221 should be reported in bugzilla, you must turn on the selin‐
222 uxuser_execheap boolean. Disabled by default.
223 setsebool -P selinuxuser_execheap 1
225 If you want to allow all unconfined executables to use libraries
229 requiring text relocation that are not labeled textrel_shlib_t, you
230 must turn on the selinuxuser_execmod boolean. Enabled by default.
231 setsebool -P selinuxuser_execmod 1
233 If you want to allow unconfined executables to make their stack exe‐
237 cutable. This should never, ever be necessary. Probably indicates a
238 badly coded executable, but could indicate an attack. This executable
239 should be reported in bugzilla, you must turn on the selinuxuser_exec‐
240 stack boolean. Enabled by default.
241 setsebool -P selinuxuser_execstack 1
243 If you want to allow ssh logins as sysadm_r:sysadm_t, you must turn on
247 the ssh_sysadm_login boolean. Disabled by default.
248 setsebool -P ssh_sysadm_login 1
250 If you want to support NFS home directories, you must turn on the
254 use_nfs_home_dirs boolean. Disabled by default.
255 setsebool -P use_nfs_home_dirs 1
257 If you want to support SAMBA home directories, you must turn on the
261 use_samba_home_dirs boolean. Disabled by default.
262 setsebool -P use_samba_home_dirs 1
264 If you want to allow the graphical login program to login directly as
268 sysadm_r:sysadm_t, you must turn on the xdm_sysadm_login boolean.
269 Enabled by default.
270 setsebool -P xdm_sysadm_login 1
272 If you want to support X userspace object manager, you must turn on the
276 xserver_object_manager boolean. Enabled by default.
277 setsebool -P xserver_object_manager 1
279
283 The SELinux process type unconfined_t can manage files labeled with the
284 following file types. The paths listed are the default paths for these
285 file types. Note the processes UID still need to have DAC permissions.
286 file_type
288 all files on the system
290
293 semanage fcontext can also be used to manipulate default file context
294 mappings.
295 semanage permissive can also be used to manipulate whether or not a
297 process type is permissive.
298 semanage module can also be used to enable/disable/install/remove pol‐
300 icy modules.
301 semanage boolean can also be used to manipulate the booleans
303 system-config-selinux is a GUI tool available to customize SELinux pol‐
306 icy settings.
307
310 This manual page was auto-generated using sepolicy manpage .
311
314 selinux(8), unconfined(8), semanage(8), restorecon(8), chcon(1), sepol‐
315 icy(8) , setsebool(8), unconfined_cronjob_selinux(8), uncon‐
316 fined_dbusd_selinux(8), unconfined_mount_selinux(8), uncon‐
317 fined_munin_plugin_selinux(8), unconfined_sendmail_selinux(8), uncon‐
318 fined_service_selinux(8)
319mgrepl@redhat.com unconfined unconfined_selinux(8)