1spamd_selinux(8) SELinux Policy spamd spamd_selinux(8)
2
3
4
6 spamd_selinux - Security Enhanced Linux Policy for the spamd processes
7
9 Security-Enhanced Linux secures the spamd processes via flexible manda‐
10 tory access control.
11
12 The spamd processes execute with the spamd_t SELinux type. You can
13 check if you have these processes running by executing the ps command
14 with the -Z qualifier.
15
16 For example:
17
18 ps -eZ | grep spamd_t
19
20
21
23 The spamd_t SELinux type can be entered via the spamd_exec_t file type.
24
25 The default entrypoint paths for the spamd_t domain are the following:
26
27 /usr/bin/spamd, /usr/sbin/spamd, /usr/bin/pyzord, /usr/bin/mimedefang,
28 /usr/bin/mimedefang-multiplexor
29
31 SELinux defines process types (domains) for each process running on the
32 system
33
34 You can see the context of a process using the -Z option to ps
35
36 Policy governs the access confined processes have to files. SELinux
37 spamd policy is very flexible allowing users to setup their spamd pro‐
38 cesses in as secure a method as possible.
39
40 The following process types are defined for spamd:
41
42 spamd_t
43
44 Note: semanage permissive -a spamd_t can be used to make the process
45 type spamd_t permissive. SELinux does not deny access to permissive
46 process types, but the AVC (SELinux denials) messages are still gener‐
47 ated.
48
49
51 SELinux policy is customizable based on least access required. spamd
52 policy is extremely flexible and has several booleans that allow you to
53 manipulate the policy and run spamd with the tightest access possible.
54
55
56
57 If you want to allow spamd to read/write user home directories, you
58 must turn on the spamd_enable_home_dirs boolean. Enabled by default.
59
60 setsebool -P spamd_enable_home_dirs 1
61
62
63
64 If you want to allow all daemons to write corefiles to /, you must turn
65 on the allow_daemons_dump_core boolean. Disabled by default.
66
67 setsebool -P allow_daemons_dump_core 1
68
69
70
71 If you want to allow all daemons to use tcp wrappers, you must turn on
72 the allow_daemons_use_tcp_wrapper boolean. Disabled by default.
73
74 setsebool -P allow_daemons_use_tcp_wrapper 1
75
76
77
78 If you want to allow all daemons the ability to read/write terminals,
79 you must turn on the allow_daemons_use_tty boolean. Disabled by
80 default.
81
82 setsebool -P allow_daemons_use_tty 1
83
84
85
86 If you want to allow all domains to use other domains file descriptors,
87 you must turn on the allow_domain_fd_use boolean. Enabled by default.
88
89 setsebool -P allow_domain_fd_use 1
90
91
92
93 If you want to allow confined applications to run with kerberos, you
94 must turn on the allow_kerberos boolean. Enabled by default.
95
96 setsebool -P allow_kerberos 1
97
98
99
100 If you want to allow sysadm to debug or ptrace all processes, you must
101 turn on the allow_ptrace boolean. Disabled by default.
102
103 setsebool -P allow_ptrace 1
104
105
106
107 If you want to allow system to run with NIS, you must turn on the
108 allow_ypbind boolean. Disabled by default.
109
110 setsebool -P allow_ypbind 1
111
112
113
114 If you want to enable cluster mode for daemons, you must turn on the
115 daemons_enable_cluster_mode boolean. Disabled by default.
116
117 setsebool -P daemons_enable_cluster_mode 1
118
119
120
121 If you want to allow all domains to have the kernel load modules, you
122 must turn on the domain_kernel_load_modules boolean. Disabled by
123 default.
124
125 setsebool -P domain_kernel_load_modules 1
126
127
128
129 If you want to allow all domains to execute in fips_mode, you must turn
130 on the fips_mode boolean. Enabled by default.
131
132 setsebool -P fips_mode 1
133
134
135
136 If you want to enable reading of urandom for all domains, you must turn
137 on the global_ssp boolean. Disabled by default.
138
139 setsebool -P global_ssp 1
140
141
142
143 If you want to enable support for upstart as the init program, you must
144 turn on the init_upstart boolean. Enabled by default.
145
146 setsebool -P init_upstart 1
147
148
149
150 If you want to allow confined applications to use nscd shared memory,
151 you must turn on the nscd_use_shm boolean. Enabled by default.
152
153 setsebool -P nscd_use_shm 1
154
155
156
157 If you want to support NFS home directories, you must turn on the
158 use_nfs_home_dirs boolean. Disabled by default.
159
160 setsebool -P use_nfs_home_dirs 1
161
162
163
164 If you want to support SAMBA home directories, you must turn on the
165 use_samba_home_dirs boolean. Disabled by default.
166
167 setsebool -P use_samba_home_dirs 1
168
169
170
172 SELinux defines port types to represent TCP and UDP ports.
173
174 You can see the types associated with a port by using the following
175 command:
176
177 semanage port -l
178
179
180 Policy governs the access confined processes have to these ports.
181 SELinux spamd policy is very flexible allowing users to setup their
182 spamd processes in as secure a method as possible.
183
184 The following port types are defined for spamd:
185
186
187 spamd_port_t
188
189
190
191 Default Defined Ports:
192 tcp 783
193
195 The SELinux process type spamd_t can manage files labeled with the fol‐
196 lowing file types. The paths listed are the default paths for these
197 file types. Note the processes UID still need to have DAC permissions.
198
199 antivirus_db_t
200
201 /var/clamav(/.*)?
202 /var/amavis(/.*)?
203 /var/lib/clamd.*
204 /var/lib/amavis(/.*)?
205 /var/lib/clamav(/.*)?
206 /var/virusmails(/.*)?
207 /var/opt/f-secure(/.*)?
208 /var/spool/amavisd(/.*)?
209
210 cifs_t
211
212
213 cluster_conf_t
214
215 /etc/cluster(/.*)?
216
217 cluster_var_lib_t
218
219 /var/lib(64)?/openais(/.*)?
220 /var/lib(64)?/pengine(/.*)?
221 /var/lib(64)?/corosync(/.*)?
222 /usr/lib(64)?/heartbeat(/.*)?
223 /var/lib(64)?/heartbeat(/.*)?
224 /var/lib(64)?/pacemaker(/.*)?
225 /var/lib/cluster(/.*)?
226
227 cluster_var_run_t
228
229 /var/run/crm(/.*)?
230 /var/run/cman_.*
231 /var/run/rsctmp(/.*)?
232 /var/run/aisexec.*
233 /var/run/heartbeat(/.*)?
234 /var/run/cpglockd.pid
235 /var/run/corosync.pid
236 /var/run/rgmanager.pid
237 /var/run/cluster/rgmanager.sk
238
239 exim_spool_t
240
241 /var/spool/exim[0-9]?(/.*)?
242
243 initrc_tmp_t
244
245
246 mail_spool_t
247
248 /var/mail(/.*)?
249 /var/spool/mail(/.*)?
250 /var/spool/imap(/.*)?
251
252 mnt_t
253
254 /mnt(/[^/]*)
255 /mnt(/[^/]*)?
256 /rhev(/[^/]*)?
257 /media(/[^/]*)
258 /media(/[^/]*)?
259 /etc/rhgb(/.*)?
260 /media/.hal-.*
261 /net
262 /afs
263 /rhev
264 /misc
265
266 nfs_t
267
268
269 root_t
270
271 /
272 /initrd
273
274 spamass_milter_state_t
275
276 /var/lib/spamass-milter(/.*)?
277
278 spamc_home_t
279
280 /root/.razor(/.*)?
281 /root/.pyzor(/.*)?
282 /root/.spamd(/.*)?
283 /root/.spamassassin(/.*)?
284 /home/[^/]*/.razor(/.*)?
285 /home/[^/]*/.pyzor(/.*)?
286 /home/[^/]*/.spamd(/.*)?
287 /home/[^/]*/.spamassassin(/.*)?
288 /home/staff/.razor(/.*)?
289 /home/staff/.pyzor(/.*)?
290 /home/staff/.spamd(/.*)?
291 /home/staff/.spamassassin(/.*)?
292
293 spamd_compiled_t
294
295 /var/lib/spamassassin/compiled(/.*)?
296
297 spamd_etc_t
298
299 /etc/razor(/.*)?
300 /etc/pyzor(/.*)?
301
302 spamd_log_t
303
304 /var/log/spamd.log.*
305 /var/log/mimedefang.*
306 /var/log/pyzord.log.*
307 /var/log/razor-agent.log.*
308
309 spamd_spool_t
310
311 /var/spool/spamd(/.*)?
312 /var/spool/spamassassin(/.*)?
313
314 spamd_tmp_t
315
316
317 spamd_var_lib_t
318
319 /var/lib/razor(/.*)?
320 /var/lib/pyzord(/.*)?
321 /var/lib/spamassassin(/.*)?
322
323 spamd_var_run_t
324
325 /var/run/spamassassin(/.*)?
326 /var/spool/MIMEDefang(/.*)?
327 /var/spool/MD-Quarantine(/.*)?
328
329 tmp_t
330
331 /tmp
332 /usr/tmp
333 /var/tmp
334 /tmp-inst
335 /var/tmp-inst
336 /var/tmp/vi.recover
337
338 user_home_t
339
340 /home/[^/]*/.+
341 /home/staff/.+
342
343
345 SELinux requires files to have an extended attribute to define the file
346 type.
347
348 You can see the context of a file using the -Z option to ls
349
350 Policy governs the access confined processes have to these files.
351 SELinux spamd policy is very flexible allowing users to setup their
352 spamd processes in as secure a method as possible.
353
354 EQUIVALENCE DIRECTORIES
355
356
357 spamd policy stores data with multiple different file context types
358 under the /var/lib/spamassassin directory. If you would like to store
359 the data in a different directory you can use the semanage command to
360 create an equivalence mapping. If you wanted to store this data under
361 the /srv dirctory you would execute the following command:
362
363 semanage fcontext -a -e /var/lib/spamassassin /srv/spamassassin
364 restorecon -R -v /srv/spamassassin
365
366 STANDARD FILE CONTEXT
367
368 SELinux defines the file context types for the spamd, if you wanted to
369 store files with these types in a diffent paths, you need to execute
370 the semanage command to sepecify alternate labeling and then use
371 restorecon to put the labels on disk.
372
373 semanage fcontext -a -t spamd_var_run_t '/srv/myspamd_content(/.*)?'
374 restorecon -R -v /srv/myspamd_content
375
376 Note: SELinux often uses regular expressions to specify labels that
377 match multiple files.
378
379 The following file types are defined for spamd:
380
381
382
383 spamd_compiled_t
384
385 - Set files with the spamd_compiled_t type, if you want to treat the
386 files as spamd compiled data.
387
388
389
390 spamd_etc_t
391
392 - Set files with the spamd_etc_t type, if you want to store spamd files
393 in the /etc directories.
394
395
396 Paths:
397 /etc/razor(/.*)?, /etc/pyzor(/.*)?
398
399
400 spamd_exec_t
401
402 - Set files with the spamd_exec_t type, if you want to transition an
403 executable to the spamd_t domain.
404
405
406 Paths:
407 /usr/bin/spamd, /usr/sbin/spamd, /usr/bin/pyzord, /usr/bin/mimede‐
408 fang, /usr/bin/mimedefang-multiplexor
409
410
411 spamd_initrc_exec_t
412
413 - Set files with the spamd_initrc_exec_t type, if you want to transi‐
414 tion an executable to the spamd_initrc_t domain.
415
416
417 Paths:
418 /etc/rc.d/init.d/mimedefang.*, /etc/rc.d/init.d/spamd,
419 /etc/rc.d/init.d/pyzord, /etc/rc.d/init.d/spamassassin
420
421
422 spamd_log_t
423
424 - Set files with the spamd_log_t type, if you want to treat the data as
425 spamd log data, usually stored under the /var/log directory.
426
427
428 Paths:
429 /var/log/spamd.log.*, /var/log/mimedefang.*,
430 /var/log/pyzord.log.*, /var/log/razor-agent.log.*
431
432
433 spamd_spool_t
434
435 - Set files with the spamd_spool_t type, if you want to store the spamd
436 files under the /var/spool directory.
437
438
439 Paths:
440 /var/spool/spamd(/.*)?, /var/spool/spamassassin(/.*)?
441
442
443 spamd_tmp_t
444
445 - Set files with the spamd_tmp_t type, if you want to store spamd tem‐
446 porary files in the /tmp directories.
447
448
449
450 spamd_var_lib_t
451
452 - Set files with the spamd_var_lib_t type, if you want to store the
453 spamd files under the /var/lib directory.
454
455
456 Paths:
457 /var/lib/razor(/.*)?, /var/lib/pyzord(/.*)?, /var/lib/spamassas‐
458 sin(/.*)?
459
460
461 spamd_var_run_t
462
463 - Set files with the spamd_var_run_t type, if you want to store the
464 spamd files under the /run or /var/run directory.
465
466
467 Paths:
468 /var/run/spamassassin(/.*)?, /var/spool/MIMEDefang(/.*)?,
469 /var/spool/MD-Quarantine(/.*)?
470
471
472 Note: File context can be temporarily modified with the chcon command.
473 If you want to permanently change the file context you need to use the
474 semanage fcontext command. This will modify the SELinux labeling data‐
475 base. You will need to use restorecon to apply the labels.
476
477
479 semanage fcontext can also be used to manipulate default file context
480 mappings.
481
482 semanage permissive can also be used to manipulate whether or not a
483 process type is permissive.
484
485 semanage module can also be used to enable/disable/install/remove pol‐
486 icy modules.
487
488 semanage port can also be used to manipulate the port definitions
489
490 semanage boolean can also be used to manipulate the booleans
491
492
493 system-config-selinux is a GUI tool available to customize SELinux pol‐
494 icy settings.
495
496
498 This manual page was auto-generated using sepolicy manpage .
499
500
502 selinux(8), spamd(8), semanage(8), restorecon(8), chcon(1) , setse‐
503 bool(8)
504
505
506
507spamd 15-06-03 spamd_selinux(8)