bind_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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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 allow all domains to execute in fips_mode, you must turn
77       on the fips_mode boolean. Enabled by default.
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79       setsebool -P fips_mode 1
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MANAGED FILES

84       The SELinux process type named_t can manage files labeled with the fol‐
85       lowing file types.  The paths listed are the default  paths  for  these
86       file types.  Note the processes UID still need to have DAC permissions.
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88       cluster_conf_t
89
90            /etc/cluster(/.*)?
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92       cluster_var_lib_t
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94            /var/lib/pcsd(/.*)?
95            /var/lib/cluster(/.*)?
96            /var/lib/openais(/.*)?
97            /var/lib/pengine(/.*)?
98            /var/lib/corosync(/.*)?
99            /usr/lib/heartbeat(/.*)?
100            /var/lib/heartbeat(/.*)?
101            /var/lib/pacemaker(/.*)?
102
103       cluster_var_run_t
104
105            /var/run/crm(/.*)?
106            /var/run/cman_.*
107            /var/run/rsctmp(/.*)?
108            /var/run/aisexec.*
109            /var/run/heartbeat(/.*)?
110            /var/run/pcsd-ruby.socket
111            /var/run/corosync-qnetd(/.*)?
112            /var/run/corosync-qdevice(/.*)?
113            /var/run/corosync.pid
114            /var/run/cpglockd.pid
115            /var/run/rgmanager.pid
116            /var/run/cluster/rgmanager.sk
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118       dnssec_trigger_var_run_t
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120            /var/run/dnssec.*
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122       ipa_var_lib_t
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124            /var/lib/ipa(/.*)?
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126       krb5_host_rcache_t
127
128            /var/tmp/krb5_0.rcache2
129            /var/cache/krb5rcache(/.*)?
130            /var/tmp/nfs_0
131            /var/tmp/DNS_25
132            /var/tmp/host_0
133            /var/tmp/imap_0
134            /var/tmp/HTTP_23
135            /var/tmp/HTTP_48
136            /var/tmp/ldap_55
137            /var/tmp/ldap_487
138            /var/tmp/ldapmap1_0
139
140       krb5_keytab_t
141
142            /var/kerberos/krb5(/.*)?
143            /etc/krb5.keytab
144            /etc/krb5kdc/kadm5.keytab
145            /var/kerberos/krb5kdc/kadm5.keytab
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147       named_cache_t
148
149            /var/named/data(/.*)?
150            /var/lib/softhsm(/.*)?
151            /var/lib/unbound(/.*)?
152            /var/named/slaves(/.*)?
153            /var/named/dynamic(/.*)?
154            /var/named/chroot/var/tmp(/.*)?
155            /var/named/chroot/var/named/data(/.*)?
156            /var/named/chroot/var/named/slaves(/.*)?
157            /var/named/chroot/var/named/dynamic(/.*)?
158
159       named_log_t
160
161            /var/log/named.*
162            /var/named/chroot/var/log/named.*
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164       named_tmp_t
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166
167       named_var_run_t
168
169            /var/run/bind(/.*)?
170            /var/run/named(/.*)?
171            /var/run/unbound(/.*)?
172            /var/named/chroot/run/named.*
173            /var/named/chroot/var/run/named.*
174            /var/run/ndc
175
176       root_t
177
178            /sysroot/ostree/deploy/.*-atomic/deploy(/.*)?
179            /
180            /initrd
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182

FILE CONTEXTS

184       SELinux requires files to have an extended attribute to define the file
185       type.
186
187       You can see the context of a file using the -Z option to ls
188
189       Policy governs the access  confined  processes  have  to  these  files.
190       SELinux  named  policy  is  very flexible allowing users to setup their
191       named processes in as secure a method as possible.
192
193       EQUIVALENCE DIRECTORIES
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195
196       named policy stores data with multiple different file context types un‐
197       der the /var/named directory.  If you would like to store the data in a
198       different directory you can use  the  semanage  command  to  create  an
199       equivalence  mapping.   If you wanted to store this data under the /srv
200       directory you would execute the following command:
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202       semanage fcontext -a -e /var/named /srv/named
203       restorecon -R -v /srv/named
204
205       STANDARD FILE CONTEXT
206
207       SELinux defines the file context types for the named, if you wanted  to
208       store  files  with  these types in a diffent paths, you need to execute
209       the semanage command to sepecify alternate labeling and  then  use  re‐
210       storecon to put the labels on disk.
211
212       semanage fcontext -a -t named_zone_t '/srv/mynamed_content(/.*)?'
213       restorecon -R -v /srv/mynamed_content
214
215       Note:  SELinux  often  uses  regular expressions to specify labels that
216       match multiple files.
217
218       The following file types are defined for named:
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220
221
222       named_cache_t
223
224       - Set files with the named_cache_t type, if you want to store the files
225       under the /var/cache directory.
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227
228       Paths:
229            /var/named/data(/.*)?,     /var/lib/softhsm(/.*)?,    /var/lib/un‐
230            bound(/.*)?,  /var/named/slaves(/.*)?,   /var/named/dynamic(/.*)?,
231            /var/named/chroot/var/tmp(/.*)?,                    /var/named/ch‐
232            root/var/named/data(/.*)?,                          /var/named/ch‐
233            root/var/named/slaves(/.*)?,       /var/named/chroot/var/named/dy‐
234            namic(/.*)?
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236
237       named_checkconf_exec_t
238
239       - Set files with the named_checkconf_exec_t type, if you want to  tran‐
240       sition an executable to the named_checkconf_t domain.
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242
243
244       named_conf_t
245
246       -  Set files with the named_conf_t type, if you want to treat the files
247       as named configuration data, usually stored under the /etc directory.
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249
250       Paths:
251            /etc/rndc.*, /etc/named(/.*)?, /etc/unbound(/.*)?,  /var/named/ch‐
252            root(/.*)?,        /etc/named.rfc1912.zones,        /var/named/ch‐
253            root/etc/named.rfc1912.zones,                     /etc/named.conf,
254            /var/named/named.ca,     /etc/named.root.hints,     /var/named/ch‐
255            root/etc/named.conf,           /etc/named.caching-nameserver.conf,
256            /var/named/chroot/var/named/named.ca,               /var/named/ch‐
257            root/etc/named.root.hints,    /var/named/chroot/etc/named.caching-
258            nameserver.conf
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260
261       named_exec_t
262
263       -  Set  files  with the named_exec_t type, if you want to transition an
264       executable to the named_t domain.
265
266
267       Paths:
268            /usr/sbin/named,       /usr/sbin/lwresd,        /usr/sbin/unbound,
269            /usr/sbin/named-sdb, /usr/sbin/named-pkcs11, /usr/sbin/unbound-an‐
270            chor, /usr/sbin/unbound-control, /usr/sbin/unbound-checkconf
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272
273       named_initrc_exec_t
274
275       - Set files with the named_initrc_exec_t type, if you want  to  transi‐
276       tion an executable to the named_initrc_t domain.
277
278
279       Paths:
280            /etc/rc.d/init.d/named,                  /etc/rc.d/init.d/unbound,
281            /etc/rc.d/init.d/named-sdb
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283
284       named_keytab_t
285
286       - Set files with the named_keytab_t type, if  you  want  to  treat  the
287       files as kerberos keytab files.
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289
290
291       named_log_t
292
293       - Set files with the named_log_t type, if you want to treat the data as
294       named log data, usually stored under the /var/log directory.
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296
297       Paths:
298            /var/log/named.*, /var/named/chroot/var/log/named.*
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300
301       named_tmp_t
302
303       - Set files with the named_tmp_t type, if you want to store named  tem‐
304       porary files in the /tmp directories.
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306
307
308       named_unit_file_t
309
310       -  Set  files with the named_unit_file_t type, if you want to treat the
311       files as named unit content.
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313
314       Paths:
315            /usr/lib/systemd/system/named.*,       /usr/lib/systemd/system/un‐
316            bound.*, /usr/lib/systemd/system/named-sdb.*
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318
319       named_var_run_t
320
321       -  Set  files  with  the named_var_run_t type, if you want to store the
322       named files under the /run or /var/run directory.
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324
325       Paths:
326            /var/run/bind(/.*)?, /var/run/named(/.*)?, /var/run/unbound(/.*)?,
327            /var/named/chroot/run/named.*,  /var/named/chroot/var/run/named.*,
328            /var/run/ndc
329
330
331       named_zone_t
332
333       - Set files with the named_zone_t type, if you want to treat the  files
334       as named zone data.
335
336
337       Paths:
338            /var/named(/.*)?, /var/named/chroot/var/named(/.*)?
339
340
341       Note:  File context can be temporarily modified with the chcon command.
342       If you want to permanently change the file context you need to use  the
343       semanage fcontext command.  This will modify the SELinux labeling data‐
344       base.  You will need to use restorecon to apply the labels.
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346

COMMANDS

348       semanage fcontext can also be used to manipulate default  file  context
349       mappings.
350
351       semanage  permissive  can  also  be used to manipulate whether or not a
352       process type is permissive.
353
354       semanage module can also be used to enable/disable/install/remove  pol‐
355       icy modules.
356
357       semanage boolean can also be used to manipulate the booleans
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359
360       system-config-selinux is a GUI tool available to customize SELinux pol‐
361       icy settings.
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363

AUTHOR

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