named_selinux(8)

1named_selinux(8)             SELinux Policy named             named_selinux(8)
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NAME

6       named_selinux - Security Enhanced Linux Policy for the named processes
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DESCRIPTION

9       Security-Enhanced Linux secures the named processes via flexible manda‐
10       tory access control.
11
12       The named processes execute with the  named_t  SELinux  type.  You  can
13       check  if  you have these processes running by executing the ps command
14       with the -Z qualifier.
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16       For example:
17
18       ps -eZ | grep named_t
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20
21

ENTRYPOINTS

23       The named_t SELinux type can be entered via the named_checkconf_exec_t,
24       named_exec_t file types.
25
26       The default entrypoint paths for the named_t domain are the following:
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28       /usr/sbin/named-checkconf,      /usr/sbin/named,      /usr/sbin/lwresd,
29       /usr/sbin/unbound,     /usr/sbin/named-sdb,     /usr/sbin/named-pkcs11,
30       /usr/sbin/unbound-anchor, /usr/sbin/unbound-control, /usr/sbin/unbound-
31       checkconf
32

PROCESS TYPES

34       SELinux defines process types (domains) for each process running on the
35       system
36
37       You can see the context of a process using the -Z option to ps
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39       Policy  governs  the  access confined processes have to files.  SELinux
40       named policy is very flexible allowing users to setup their named  pro‐
41       cesses in as secure a method as possible.
42
43       The following process types are defined for named:
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45       named_t
46
47       Note:  semanage  permissive  -a named_t can be used to make the process
48       type named_t permissive. SELinux does not  deny  access  to  permissive
49       process  types, but the AVC (SELinux denials) messages are still gener‐
50       ated.
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52

BOOLEANS

54       SELinux policy is customizable based on least access  required.   named
55       policy is extremely flexible and has several booleans that allow you to
56       manipulate the policy and run named with the tightest access possible.
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58
59
60       If you want to determine whether Bind  can  bind  tcp  socket  to  http
61       ports,  you must turn on the named_tcp_bind_http_port boolean. Disabled
62       by default.
63
64       setsebool -P named_tcp_bind_http_port 1
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66
67
68       If you want to determine whether Bind can write to master  zone  files.
69       Generally this is used for dynamic DNS or zone transfers, you must turn
70       on the named_write_master_zones boolean. Enabled by default.
71
72       setsebool -P named_write_master_zones 1
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75
76       If you want to dontaudit all  daemons  scheduling  requests  (setsched,
77       sys_nice),  you  must turn on the daemons_dontaudit_scheduling boolean.
78       Enabled by default.
79
80       setsebool -P daemons_dontaudit_scheduling 1
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82
83
84       If you want to allow all domains to execute in fips_mode, you must turn
85       on the fips_mode boolean. Enabled by default.
86
87       setsebool -P fips_mode 1
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89
90
91       If  you  want  to  allow  system  to run with NIS, you must turn on the
92       nis_enabled boolean. Disabled by default.
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94       setsebool -P nis_enabled 1
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MANAGED FILES

99       The SELinux process type named_t can manage files labeled with the fol‐
100       lowing  file  types.   The paths listed are the default paths for these
101       file types.  Note the processes UID still need to have DAC permissions.
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103       cluster_conf_t
104
105            /etc/cluster(/.*)?
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107       cluster_var_lib_t
108
109            /var/lib/pcsd(/.*)?
110            /var/lib/cluster(/.*)?
111            /var/lib/openais(/.*)?
112            /var/lib/pengine(/.*)?
113            /var/lib/corosync(/.*)?
114            /usr/lib/heartbeat(/.*)?
115            /var/lib/heartbeat(/.*)?
116            /var/lib/pacemaker(/.*)?
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118       cluster_var_run_t
119
120            /var/run/crm(/.*)?
121            /var/run/cman_.*
122            /var/run/rsctmp(/.*)?
123            /var/run/aisexec.*
124            /var/run/heartbeat(/.*)?
125            /var/run/pcsd-ruby.socket
126            /var/run/corosync-qnetd(/.*)?
127            /var/run/corosync-qdevice(/.*)?
128            /var/run/corosync.pid
129            /var/run/cpglockd.pid
130            /var/run/rgmanager.pid
131            /var/run/cluster/rgmanager.sk
132
133       dnssec_trigger_var_run_t
134
135            /var/run/dnssec.*
136
137       krb5_host_rcache_t
138
139            /var/tmp/krb5_0.rcache2
140            /var/cache/krb5rcache(/.*)?
141            /var/tmp/nfs_0
142            /var/tmp/DNS_25
143            /var/tmp/host_0
144            /var/tmp/imap_0
145            /var/tmp/HTTP_23
146            /var/tmp/HTTP_48
147            /var/tmp/ldap_55
148            /var/tmp/ldap_487
149            /var/tmp/ldapmap1_0
150
151       krb5_keytab_t
152
153            /var/kerberos/krb5(/.*)?
154            /etc/krb5.keytab
155            /etc/krb5kdc/kadm5.keytab
156            /var/kerberos/krb5kdc/kadm5.keytab
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158       named_cache_t
159
160            /var/named/data(/.*)?
161            /var/lib/softhsm(/.*)?
162            /var/lib/unbound(/.*)?
163            /var/named/slaves(/.*)?
164            /var/named/dynamic(/.*)?
165            /var/named/chroot/var/tmp(/.*)?
166            /var/named/chroot/var/named/data(/.*)?
167            /var/named/chroot/var/named/slaves(/.*)?
168            /var/named/chroot/var/named/dynamic(/.*)?
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170       named_log_t
171
172            /var/log/named.*
173            /var/named/chroot/var/log/named.*
174
175       named_tmp_t
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177
178       named_var_run_t
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180            /var/run/bind(/.*)?
181            /var/run/named(/.*)?
182            /var/run/unbound(/.*)?
183            /var/named/chroot/run/named.*
184            /var/named/chroot/var/run/named.*
185            /var/run/ndc
186
187       root_t
188
189            /sysroot/ostree/deploy/.*-atomic/deploy(/.*)?
190            /
191            /initrd
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FILE CONTEXTS

195       SELinux requires files to have an extended attribute to define the file
196       type.
197
198       You can see the context of a file using the -Z option to ls
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200       Policy  governs  the  access  confined  processes  have to these files.
201       SELinux named policy is very flexible allowing  users  to  setup  their
202       named processes in as secure a method as possible.
203
204       EQUIVALENCE DIRECTORIES
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206
207       named policy stores data with multiple different file context types un‐
208       der the /var/named directory.  If you would like to store the data in a
209       different  directory  you  can  use  the  semanage command to create an
210       equivalence mapping.  If you wanted to store this data under  the  /srv
211       directory you would execute the following command:
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213       semanage fcontext -a -e /var/named /srv/named
214       restorecon -R -v /srv/named
215
216       STANDARD FILE CONTEXT
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218       SELinux  defines the file context types for the named, if you wanted to
219       store files with these types in a different paths, you need to  execute
220       the  semanage  command  to  specify alternate labeling and then use re‐
221       storecon to put the labels on disk.
222
223       semanage fcontext -a -t named_exec_t '/srv/named/content(/.*)?'
224       restorecon -R -v /srv/mynamed_content
225
226       Note: SELinux often uses regular expressions  to  specify  labels  that
227       match multiple files.
228
229       The following file types are defined for named:
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233       named_cache_t
234
235       - Set files with the named_cache_t type, if you want to store the files
236       under the /var/cache directory.
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238
239       Paths:
240            /var/named/data(/.*)?,    /var/lib/softhsm(/.*)?,     /var/lib/un‐
241            bound(/.*)?,   /var/named/slaves(/.*)?,  /var/named/dynamic(/.*)?,
242            /var/named/chroot/var/tmp(/.*)?,                    /var/named/ch‐
243            root/var/named/data(/.*)?,                          /var/named/ch‐
244            root/var/named/slaves(/.*)?,       /var/named/chroot/var/named/dy‐
245            namic(/.*)?
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247
248       named_checkconf_exec_t
249
250       -  Set files with the named_checkconf_exec_t type, if you want to tran‐
251       sition an executable to the named_checkconf_t domain.
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255       named_conf_t
256
257       - Set files with the named_conf_t type, if you want to treat the  files
258       as named configuration data, usually stored under the /etc directory.
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260
261       Paths:
262            /etc/rndc.*,  /etc/named(/.*)?, /etc/unbound(/.*)?, /var/named/ch‐
263            root(/.*)?,        /etc/named.rfc1912.zones,        /var/named/ch‐
264            root/etc/named.rfc1912.zones,                     /etc/named.conf,
265            /var/named/named.ca,     /etc/named.root.hints,     /var/named/ch‐
266            root/etc/named.conf,           /etc/named.caching-nameserver.conf,
267            /var/named/chroot/var/named/named.ca,               /var/named/ch‐
268            root/etc/named.root.hints,    /var/named/chroot/etc/named.caching-
269            nameserver.conf
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271
272       named_exec_t
273
274       - Set files with the named_exec_t type, if you want  to  transition  an
275       executable to the named_t domain.
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277
278       Paths:
279            /usr/sbin/named,        /usr/sbin/lwresd,       /usr/sbin/unbound,
280            /usr/sbin/named-sdb, /usr/sbin/named-pkcs11, /usr/sbin/unbound-an‐
281            chor, /usr/sbin/unbound-control, /usr/sbin/unbound-checkconf
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283
284       named_initrc_exec_t
285
286       -  Set  files with the named_initrc_exec_t type, if you want to transi‐
287       tion an executable to the named_initrc_t domain.
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289
290       Paths:
291            /etc/rc.d/init.d/named,                  /etc/rc.d/init.d/unbound,
292            /etc/rc.d/init.d/named-sdb
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294
295       named_keytab_t
296
297       -  Set  files  with  the  named_keytab_t type, if you want to treat the
298       files as kerberos keytab files.
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300
301
302       named_log_t
303
304       - Set files with the named_log_t type, if you want to treat the data as
305       named log data, usually stored under the /var/log directory.
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307
308       Paths:
309            /var/log/named.*, /var/named/chroot/var/log/named.*
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311
312       named_tmp_t
313
314       -  Set files with the named_tmp_t type, if you want to store named tem‐
315       porary files in the /tmp directories.
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318
319       named_unit_file_t
320
321       - Set files with the named_unit_file_t type, if you want to  treat  the
322       files as named unit content.
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324
325       Paths:
326            /usr/lib/systemd/system/named.*,       /usr/lib/systemd/system/un‐
327            bound.*, /usr/lib/systemd/system/named-sdb.*
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329
330       named_var_run_t
331
332       - Set files with the named_var_run_t type, if you  want  to  store  the
333       named files under the /run or /var/run directory.
334
335
336       Paths:
337            /var/run/bind(/.*)?, /var/run/named(/.*)?, /var/run/unbound(/.*)?,
338            /var/named/chroot/run/named.*,  /var/named/chroot/var/run/named.*,
339            /var/run/ndc
340
341
342       named_zone_t
343
344       -  Set files with the named_zone_t type, if you want to treat the files
345       as named zone data.
346
347
348       Paths:
349            /var/named(/.*)?, /var/named/chroot/var/named(/.*)?
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351
352       Note: File context can be temporarily modified with the chcon  command.
353       If  you want to permanently change the file context you need to use the
354       semanage fcontext command.  This will modify the SELinux labeling data‐
355       base.  You will need to use restorecon to apply the labels.
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357

COMMANDS

359       semanage  fcontext  can also be used to manipulate default file context
360       mappings.
361
362       semanage permissive can also be used to manipulate  whether  or  not  a
363       process type is permissive.
364
365       semanage  module can also be used to enable/disable/install/remove pol‐
366       icy modules.
367
368       semanage boolean can also be used to manipulate the booleans
369
370
371       system-config-selinux is a GUI tool available to customize SELinux pol‐
372       icy settings.
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374

AUTHOR

376       This manual page was auto-generated using sepolicy manpage .
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