1rlogind_selinux(8) SELinux Policy rlogind rlogind_selinux(8)
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3
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6 rlogind_selinux - Security Enhanced Linux Policy for the rlogind pro‐
7 cesses
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10 Security-Enhanced Linux secures the rlogind processes via flexible
11 mandatory access control.
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13 The rlogind processes execute with the rlogind_t SELinux type. You can
14 check if you have these processes running by executing the ps command
15 with the -Z qualifier.
16
17 For example:
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19 ps -eZ | grep rlogind_t
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21
22
24 The rlogind_t SELinux type can be entered via the rlogind_exec_t file
25 type.
26
27 The default entrypoint paths for the rlogind_t domain are the follow‐
28 ing:
29
30 /usr/lib/telnetlogin, /usr/sbin/in.rlogind, /usr/kerberos/sbin/klogind
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33 SELinux defines process types (domains) for each process running on the
34 system
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36 You can see the context of a process using the -Z option to ps
37
38 Policy governs the access confined processes have to files. SELinux
39 rlogind policy is very flexible allowing users to setup their rlogind
40 processes in as secure a method as possible.
41
42 The following process types are defined for rlogind:
43
44 rlogind_t
45
46 Note: semanage permissive -a rlogind_t can be used to make the process
47 type rlogind_t permissive. SELinux does not deny access to permissive
48 process types, but the AVC (SELinux denials) messages are still gener‐
49 ated.
50
51
53 SELinux policy is customizable based on least access required. rlogind
54 policy is extremely flexible and has several booleans that allow you to
55 manipulate the policy and run rlogind with the tightest access possi‐
56 ble.
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58
59
60 If you want to allow users to resolve user passwd entries directly from
61 ldap rather then using a sssd server, you must turn on the authlo‐
62 gin_nsswitch_use_ldap boolean. Disabled by default.
63
64 setsebool -P authlogin_nsswitch_use_ldap 1
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66
67
68 If you want to allow users to login using a radius server, you must
69 turn on the authlogin_radius boolean. Disabled by default.
70
71 setsebool -P authlogin_radius 1
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73
74
75 If you want to allow users to login using a yubikey OTP server or chal‐
76 lenge response mode, you must turn on the authlogin_yubikey boolean.
77 Disabled by default.
78
79 setsebool -P authlogin_yubikey 1
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81
82
83 If you want to allow all daemons to write corefiles to /, you must turn
84 on the daemons_dump_core boolean. Disabled by default.
85
86 setsebool -P daemons_dump_core 1
87
88
89
90 If you want to enable cluster mode for daemons, you must turn on the
91 daemons_enable_cluster_mode boolean. Enabled by default.
92
93 setsebool -P daemons_enable_cluster_mode 1
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95
96
97 If you want to allow all daemons to use tcp wrappers, you must turn on
98 the daemons_use_tcp_wrapper boolean. Disabled by default.
99
100 setsebool -P daemons_use_tcp_wrapper 1
101
102
103
104 If you want to allow all daemons the ability to read/write terminals,
105 you must turn on the daemons_use_tty boolean. Disabled by default.
106
107 setsebool -P daemons_use_tty 1
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109
110
111 If you want to deny any process from ptracing or debugging any other
112 processes, you must turn on the deny_ptrace boolean. Enabled by
113 default.
114
115 setsebool -P deny_ptrace 1
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117
118
119 If you want to allow any process to mmap any file on system with
120 attribute file_type, you must turn on the domain_can_mmap_files bool‐
121 ean. Enabled by default.
122
123 setsebool -P domain_can_mmap_files 1
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125
126
127 If you want to allow all domains write to kmsg_device, while kernel is
128 executed with systemd.log_target=kmsg parameter, you must turn on the
129 domain_can_write_kmsg boolean. Disabled by default.
130
131 setsebool -P domain_can_write_kmsg 1
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133
134
135 If you want to allow all domains to use other domains file descriptors,
136 you must turn on the domain_fd_use boolean. Enabled by default.
137
138 setsebool -P domain_fd_use 1
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140
141
142 If you want to allow all domains to have the kernel load modules, you
143 must turn on the domain_kernel_load_modules boolean. Disabled by
144 default.
145
146 setsebool -P domain_kernel_load_modules 1
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148
149
150 If you want to allow all domains to execute in fips_mode, you must turn
151 on the fips_mode boolean. Enabled by default.
152
153 setsebool -P fips_mode 1
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155
156
157 If you want to enable reading of urandom for all domains, you must turn
158 on the global_ssp boolean. Disabled by default.
159
160 setsebool -P global_ssp 1
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162
163
164 If you want to allow confined applications to run with kerberos, you
165 must turn on the kerberos_enabled boolean. Enabled by default.
166
167 setsebool -P kerberos_enabled 1
168
169
170
171 If you want to allow system to run with NIS, you must turn on the
172 nis_enabled boolean. Disabled by default.
173
174 setsebool -P nis_enabled 1
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176
177
178 If you want to allow confined applications to use nscd shared memory,
179 you must turn on the nscd_use_shm boolean. Disabled by default.
180
181 setsebool -P nscd_use_shm 1
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183
184
185 If you want to enable polyinstantiated directory support, you must turn
186 on the polyinstantiation_enabled boolean. Disabled by default.
187
188 setsebool -P polyinstantiation_enabled 1
189
190
191
192 If you want to support ecryptfs home directories, you must turn on the
193 use_ecryptfs_home_dirs boolean. Disabled by default.
194
195 setsebool -P use_ecryptfs_home_dirs 1
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197
198
199 If you want to support fusefs home directories, you must turn on the
200 use_fusefs_home_dirs boolean. Disabled by default.
201
202 setsebool -P use_fusefs_home_dirs 1
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204
205
206 If you want to support NFS home directories, you must turn on the
207 use_nfs_home_dirs boolean. Disabled by default.
208
209 setsebool -P use_nfs_home_dirs 1
210
211
212
213 If you want to support SAMBA home directories, you must turn on the
214 use_samba_home_dirs boolean. Disabled by default.
215
216 setsebool -P use_samba_home_dirs 1
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218
219
221 SELinux defines port types to represent TCP and UDP ports.
222
223 You can see the types associated with a port by using the following
224 command:
225
226 semanage port -l
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228
229 Policy governs the access confined processes have to these ports.
230 SELinux rlogind policy is very flexible allowing users to setup their
231 rlogind processes in as secure a method as possible.
232
233 The following port types are defined for rlogind:
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235
236 rlogin_port_t
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238
239
240 Default Defined Ports:
241 tcp 543,2105
242
243
244 rlogind_port_t
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246
247
248 Default Defined Ports:
249 tcp 513
250
252 The SELinux process type rlogind_t can manage files labeled with the
253 following file types. The paths listed are the default paths for these
254 file types. Note the processes UID still need to have DAC permissions.
255
256 auth_cache_t
257
258 /var/cache/coolkey(/.*)?
259
260 auth_home_t
261
262 /root/.yubico(/.*)?
263 /root/.google_authenticator
264 /root/.google_authenticator~
265 /home/[^/]+/.yubico(/.*)?
266 /home/[^/]+/.google_authenticator
267 /home/[^/]+/.google_authenticator~
268
269 cgroup_t
270
271 /sys/fs/cgroup
272
273 cluster_conf_t
274
275 /etc/cluster(/.*)?
276
277 cluster_var_lib_t
278
279 /var/lib/pcsd(/.*)?
280 /var/lib/cluster(/.*)?
281 /var/lib/openais(/.*)?
282 /var/lib/pengine(/.*)?
283 /var/lib/corosync(/.*)?
284 /usr/lib/heartbeat(/.*)?
285 /var/lib/heartbeat(/.*)?
286 /var/lib/pacemaker(/.*)?
287
288 cluster_var_run_t
289
290 /var/run/crm(/.*)?
291 /var/run/cman_.*
292 /var/run/rsctmp(/.*)?
293 /var/run/aisexec.*
294 /var/run/heartbeat(/.*)?
295 /var/run/corosync-qnetd(/.*)?
296 /var/run/corosync-qdevice(/.*)?
297 /var/run/cpglockd.pid
298 /var/run/corosync.pid
299 /var/run/rgmanager.pid
300 /var/run/cluster/rgmanager.sk
301
302 faillog_t
303
304 /var/log/btmp.*
305 /var/log/faillog.*
306 /var/log/tallylog.*
307 /var/run/faillock(/.*)?
308
309 initrc_var_run_t
310
311 /var/run/utmp
312 /var/run/random-seed
313 /var/run/runlevel.dir
314 /var/run/setmixer_flag
315
316 krb5_host_rcache_t
317
318 /var/cache/krb5rcache(/.*)?
319 /var/tmp/nfs_0
320 /var/tmp/DNS_25
321 /var/tmp/host_0
322 /var/tmp/imap_0
323 /var/tmp/HTTP_23
324 /var/tmp/HTTP_48
325 /var/tmp/ldap_55
326 /var/tmp/ldap_487
327 /var/tmp/ldapmap1_0
328
329 lastlog_t
330
331 /var/log/lastlog.*
332
333 pam_var_run_t
334
335 /var/(db|adm)/sudo(/.*)?
336 /var/run/sudo(/.*)?
337 /var/lib/sudo(/.*)?
338 /var/run/sepermit(/.*)?
339 /var/run/pam_mount(/.*)?
340
341 rlogind_tmp_t
342
343
344 rlogind_var_run_t
345
346
347 root_t
348
349 /sysroot/ostree/deploy/.*-atomic.*/deploy(/.*)?
350 /
351 /initrd
352
353 security_t
354
355 /selinux
356
357 user_tmp_t
358
359 /dev/shm/mono.*
360 /var/run/user(/.*)?
361 /tmp/.X11-unix(/.*)?
362 /tmp/.ICE-unix(/.*)?
363 /dev/shm/pulse-shm.*
364 /tmp/.X0-lock
365 /tmp/hsperfdata_root
366 /var/tmp/hsperfdata_root
367 /home/[^/]+/tmp
368 /home/[^/]+/.tmp
369 /tmp/gconfd-[^/]+
370
371 var_auth_t
372
373 /var/ace(/.*)?
374 /var/rsa(/.*)?
375 /var/lib/abl(/.*)?
376 /var/lib/rsa(/.*)?
377 /var/lib/pam_ssh(/.*)?
378 /var/run/pam_ssh(/.*)?
379 /var/lib/pam_shield(/.*)?
380 /var/opt/quest/vas/vasd(/.*)?
381 /var/lib/google-authenticator(/.*)?
382
383 wtmp_t
384
385 /var/log/wtmp.*
386
387
389 SELinux requires files to have an extended attribute to define the file
390 type.
391
392 You can see the context of a file using the -Z option to ls
393
394 Policy governs the access confined processes have to these files.
395 SELinux rlogind policy is very flexible allowing users to setup their
396 rlogind processes in as secure a method as possible.
397
398 STANDARD FILE CONTEXT
399
400 SELinux defines the file context types for the rlogind, if you wanted
401 to store files with these types in a diffent paths, you need to execute
402 the semanage command to sepecify alternate labeling and then use
403 restorecon to put the labels on disk.
404
405 semanage fcontext -a -t rlogind_var_run_t '/srv/myrlogind_con‐
406 tent(/.*)?'
407 restorecon -R -v /srv/myrlogind_content
408
409 Note: SELinux often uses regular expressions to specify labels that
410 match multiple files.
411
412 The following file types are defined for rlogind:
413
414
415
416 rlogind_exec_t
417
418 - Set files with the rlogind_exec_t type, if you want to transition an
419 executable to the rlogind_t domain.
420
421
422 Paths:
423 /usr/lib/telnetlogin, /usr/sbin/in.rlogind, /usr/ker‐
424 beros/sbin/klogind
425
426
427 rlogind_home_t
428
429 - Set files with the rlogind_home_t type, if you want to store rlogind
430 files in the users home directory.
431
432
433 Paths:
434 /root/.rlogin, /root/.rhosts, /home/[^/]+/.rlogin,
435 /home/[^/]+/.rhosts
436
437
438 rlogind_keytab_t
439
440 - Set files with the rlogind_keytab_t type, if you want to treat the
441 files as kerberos keytab files.
442
443
444
445 rlogind_tmp_t
446
447 - Set files with the rlogind_tmp_t type, if you want to store rlogind
448 temporary files in the /tmp directories.
449
450
451
452 rlogind_var_run_t
453
454 - Set files with the rlogind_var_run_t type, if you want to store the
455 rlogind files under the /run or /var/run directory.
456
457
458
459 Note: File context can be temporarily modified with the chcon command.
460 If you want to permanently change the file context you need to use the
461 semanage fcontext command. This will modify the SELinux labeling data‐
462 base. You will need to use restorecon to apply the labels.
463
464
466 semanage fcontext can also be used to manipulate default file context
467 mappings.
468
469 semanage permissive can also be used to manipulate whether or not a
470 process type is permissive.
471
472 semanage module can also be used to enable/disable/install/remove pol‐
473 icy modules.
474
475 semanage port can also be used to manipulate the port definitions
476
477 semanage boolean can also be used to manipulate the booleans
478
479
480 system-config-selinux is a GUI tool available to customize SELinux pol‐
481 icy settings.
482
483
485 This manual page was auto-generated using sepolicy manpage .
486
487
489 selinux(8), rlogind(8), semanage(8), restorecon(8), chcon(1), sepol‐
490 icy(8) , setsebool(8)
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494rlogind 19-04-25 rlogind_selinux(8)