1asterisk_selinux(8) SELinux Policy asterisk asterisk_selinux(8)
2
6 asterisk_selinux - Security Enhanced Linux Policy for the asterisk pro‐
7 cesses
8
10 Security-Enhanced Linux secures the asterisk processes via flexible
11 mandatory access control.
12 The asterisk processes execute with the asterisk_t SELinux type. You
14 can check if you have these processes running by executing the ps com‐
15 mand with the -Z qualifier.
16 For example:
18 ps -eZ | grep asterisk_t
20
24 The asterisk_t SELinux type can be entered via the asterisk_exec_t file
25 type.
26 The default entrypoint paths for the asterisk_t domain are the follow‐
28 ing:
29 /usr/sbin/asterisk
31
33 SELinux defines process types (domains) for each process running on the
34 system
35 You can see the context of a process using the -Z option to ps
37 Policy governs the access confined processes have to files. SELinux
39 asterisk policy is very flexible allowing users to setup their asterisk
40 processes in as secure a method as possible.
41 The following process types are defined for asterisk:
43 asterisk_t
45 Note: semanage permissive -a asterisk_t can be used to make the process
47 type asterisk_t permissive. SELinux does not deny access to permissive
48 process types, but the AVC (SELinux denials) messages are still gener‐
49 ated.
50
53 SELinux policy is customizable based on least access required. aster‐
54 isk policy is extremely flexible and has several booleans that allow
55 you to manipulate the policy and run asterisk with the tightest access
56 possible.
57 If you want to allow all daemons to write corefiles to /, you must turn
61 on the allow_daemons_dump_core boolean. Disabled by default.
62 setsebool -P allow_daemons_dump_core 1
64 If you want to allow all daemons to use tcp wrappers, you must turn on
68 the allow_daemons_use_tcp_wrapper boolean. Disabled by default.
69 setsebool -P allow_daemons_use_tcp_wrapper 1
71 If you want to allow all daemons the ability to read/write terminals,
75 you must turn on the allow_daemons_use_tty boolean. Disabled by
76 default.
77 setsebool -P allow_daemons_use_tty 1
79 If you want to allow all domains to use other domains file descriptors,
83 you must turn on the allow_domain_fd_use boolean. Enabled by default.
84 setsebool -P allow_domain_fd_use 1
86 If you want to allow confined applications to run with kerberos, you
90 must turn on the allow_kerberos boolean. Enabled by default.
91 setsebool -P allow_kerberos 1
93 If you want to allow sysadm to debug or ptrace all processes, you must
97 turn on the allow_ptrace boolean. Disabled by default.
98 setsebool -P allow_ptrace 1
100 If you want to allow system to run with NIS, you must turn on the
104 allow_ypbind boolean. Disabled by default.
105 setsebool -P allow_ypbind 1
107 If you want to enable cluster mode for daemons, you must turn on the
111 daemons_enable_cluster_mode boolean. Disabled by default.
112 setsebool -P daemons_enable_cluster_mode 1
114 If you want to allow all domains to have the kernel load modules, you
118 must turn on the domain_kernel_load_modules boolean. Disabled by
119 default.
120 setsebool -P domain_kernel_load_modules 1
122 If you want to allow all domains to execute in fips_mode, you must turn
126 on the fips_mode boolean. Enabled by default.
127 setsebool -P fips_mode 1
129 If you want to enable reading of urandom for all domains, you must turn
133 on the global_ssp boolean. Disabled by default.
134 setsebool -P global_ssp 1
136 If you want to enable support for upstart as the init program, you must
140 turn on the init_upstart boolean. Enabled by default.
141 setsebool -P init_upstart 1
143 If you want to allow confined applications to use nscd shared memory,
147 you must turn on the nscd_use_shm boolean. Enabled by default.
148 setsebool -P nscd_use_shm 1
150
154 SELinux defines port types to represent TCP and UDP ports.
155 You can see the types associated with a port by using the following
157 command:
158 semanage port -l
160 Policy governs the access confined processes have to these ports.
163 SELinux asterisk policy is very flexible allowing users to setup their
164 asterisk processes in as secure a method as possible.
165 The following port types are defined for asterisk:
167 asterisk_port_t
170 Default Defined Ports:
174 tcp 1720
175 udp 2427,2727,4569
176
178 The SELinux process type asterisk_t can manage files labeled with the
179 following file types. The paths listed are the default paths for these
180 file types. Note the processes UID still need to have DAC permissions.
181 asterisk_log_t
183 /var/log/asterisk(/.*)?
185 asterisk_spool_t
187 /var/spool/asterisk(/.*)?
189 asterisk_tmp_t
191 asterisk_tmpfs_t
194 asterisk_var_lib_t
197 /var/lib/asterisk(/.*)?
199 asterisk_var_run_t
201 /var/run/asterisk(/.*)?
203 cluster_conf_t
205 /etc/cluster(/.*)?
207 cluster_var_lib_t
209 /var/lib(64)?/openais(/.*)?
211 /var/lib(64)?/pengine(/.*)?
212 /var/lib(64)?/corosync(/.*)?
213 /usr/lib(64)?/heartbeat(/.*)?
214 /var/lib(64)?/heartbeat(/.*)?
215 /var/lib(64)?/pacemaker(/.*)?
216 /var/lib/cluster(/.*)?
217 cluster_var_run_t
219 /var/run/crm(/.*)?
221 /var/run/cman_.*
222 /var/run/rsctmp(/.*)?
223 /var/run/aisexec.*
224 /var/run/heartbeat(/.*)?
225 /var/run/cpglockd.pid
226 /var/run/corosync.pid
227 /var/run/rgmanager.pid
228 /var/run/cluster/rgmanager.sk
229 initrc_tmp_t
231 mnt_t
234 /mnt(/[^/]*)
236 /mnt(/[^/]*)?
237 /rhev(/[^/]*)?
238 /media(/[^/]*)
239 /media(/[^/]*)?
240 /etc/rhgb(/.*)?
241 /media/.hal-.*
242 /net
243 /afs
244 /rhev
245 /misc
246 root_t
248 /
250 /initrd
251 tmp_t
253 /tmp
255 /usr/tmp
256 /var/tmp
257 /tmp-inst
258 /var/tmp-inst
259 /var/tmp/vi.recover
260
263 SELinux requires files to have an extended attribute to define the file
264 type.
265 You can see the context of a file using the -Z option to ls
267 Policy governs the access confined processes have to these files.
269 SELinux asterisk policy is very flexible allowing users to setup their
270 asterisk processes in as secure a method as possible.
271 STANDARD FILE CONTEXT
273 SELinux defines the file context types for the asterisk, if you wanted
275 to store files with these types in a diffent paths, you need to execute
276 the semanage command to sepecify alternate labeling and then use
277 restorecon to put the labels on disk.
278 semanage fcontext -a -t asterisk_var_run_t '/srv/myasterisk_con‐
280 tent(/.*)?'
281 restorecon -R -v /srv/myasterisk_content
282 Note: SELinux often uses regular expressions to specify labels that
284 match multiple files.
285 The following file types are defined for asterisk:
287 asterisk_etc_t
291 - Set files with the asterisk_etc_t type, if you want to store asterisk
293 files in the /etc directories.
294 asterisk_exec_t
298 - Set files with the asterisk_exec_t type, if you want to transition an
300 executable to the asterisk_t domain.
301 asterisk_initrc_exec_t
305 - Set files with the asterisk_initrc_exec_t type, if you want to tran‐
307 sition an executable to the asterisk_initrc_t domain.
308 asterisk_log_t
312 - Set files with the asterisk_log_t type, if you want to treat the data
314 as asterisk log data, usually stored under the /var/log directory.
315 asterisk_spool_t
319 - Set files with the asterisk_spool_t type, if you want to store the
321 asterisk files under the /var/spool directory.
322 asterisk_tmp_t
326 - Set files with the asterisk_tmp_t type, if you want to store asterisk
328 temporary files in the /tmp directories.
329 asterisk_tmpfs_t
333 - Set files with the asterisk_tmpfs_t type, if you want to store aster‐
335 isk files on a tmpfs file system.
336 asterisk_var_lib_t
340 - Set files with the asterisk_var_lib_t type, if you want to store the
342 asterisk files under the /var/lib directory.
343 asterisk_var_run_t
347 - Set files with the asterisk_var_run_t type, if you want to store the
349 asterisk files under the /run or /var/run directory.
350 Note: File context can be temporarily modified with the chcon command.
354 If you want to permanently change the file context you need to use the
355 semanage fcontext command. This will modify the SELinux labeling data‐
356 base. You will need to use restorecon to apply the labels.
357
360 semanage fcontext can also be used to manipulate default file context
361 mappings.
362 semanage permissive can also be used to manipulate whether or not a
364 process type is permissive.
365 semanage module can also be used to enable/disable/install/remove pol‐
367 icy modules.
368 semanage port can also be used to manipulate the port definitions
370 semanage boolean can also be used to manipulate the booleans
372 system-config-selinux is a GUI tool available to customize SELinux pol‐
375 icy settings.
376
379 This manual page was auto-generated using sepolicy manpage .
380
383 selinux(8), asterisk(8), semanage(8), restorecon(8), chcon(1) , setse‐
384 bool(8)
385asterisk 15-06-03 asterisk_selinux(8)