1fenced_selinux(8) SELinux Policy fenced fenced_selinux(8)
2
6 fenced_selinux - Security Enhanced Linux Policy for the fenced pro‐
7 cesses
8
10 Security-Enhanced Linux secures the fenced processes via flexible
11 mandatory access control.
12 The fenced processes execute with the fenced_t SELinux type. You can
14 check if you have these processes running by executing the ps command
15 with the -Z qualifier.
16 For example:
18 ps -eZ | grep fenced_t
20
24 The fenced_t SELinux type can be entered via the fenced_exec_t file
25 type.
26 The default entrypoint paths for the fenced_t domain are the following:
28 /usr/sbin/fenced, /usr/sbin/fence_node, /usr/sbin/fence_tool,
30 /usr/sbin/fence_virtd, /usr/sbin/fence_sanlockd, /usr/share/clus‐
31 ter/fence_scsi_check, /usr/share/cluster/fence_mpath_check,
32 /usr/share/cluster/fence_scsi_check.pl, /usr/lib/systemd/systemd-
33 fence_sanlockd, /usr/share/cluster/fence_scsi_check_hardreboot,
34 /usr/share/cluster/fence_mpath_check_hardreboot
35
37 SELinux defines process types (domains) for each process running on the
38 system
39 You can see the context of a process using the -Z option to ps
41 Policy governs the access confined processes have to files. SELinux
43 fenced policy is very flexible allowing users to setup their fenced
44 processes in as secure a method as possible.
45 The following process types are defined for fenced:
47 fenced_t
49 Note: semanage permissive -a fenced_t can be used to make the process
51 type fenced_t permissive. SELinux does not deny access to permissive
52 process types, but the AVC (SELinux denials) messages are still gener‐
53 ated.
54
57 SELinux policy is customizable based on least access required. fenced
58 policy is extremely flexible and has several booleans that allow you to
59 manipulate the policy and run fenced with the tightest access possible.
60 If you want to determine whether fenced can connect to the TCP network,
64 you must turn on the fenced_can_network_connect boolean. Disabled by
65 default.
66 setsebool -P fenced_can_network_connect 1
68 If you want to determine whether fenced can use ssh, you must turn on
72 the fenced_can_ssh boolean. Disabled by default.
73 setsebool -P fenced_can_ssh 1
75 If you want to allow users to resolve user passwd entries directly from
79 ldap rather then using a sssd server, you must turn on the authlo‐
80 gin_nsswitch_use_ldap boolean. Disabled by default.
81 setsebool -P authlogin_nsswitch_use_ldap 1
83 If you want to allow cluster administrative cluster domains memcheck-
87 amd64- to use executable memory, you must turn on the clus‐
88 ter_use_execmem boolean. Disabled by default.
89 setsebool -P cluster_use_execmem 1
91 If you want to allow all domains to execute in fips_mode, you must turn
95 on the fips_mode boolean. Enabled by default.
96 setsebool -P fips_mode 1
98 If you want to allow confined applications to run with kerberos, you
102 must turn on the kerberos_enabled boolean. Enabled by default.
103 setsebool -P kerberos_enabled 1
105 If you want to allow system to run with NIS, you must turn on the
109 nis_enabled boolean. Disabled by default.
110 setsebool -P nis_enabled 1
112 If you want to allow confined applications to use nscd shared memory,
116 you must turn on the nscd_use_shm boolean. Enabled by default.
117 setsebool -P nscd_use_shm 1
119
123 The SELinux process type fenced_t can manage files labeled with the
124 following file types. The paths listed are the default paths for these
125 file types. Note the processes UID still need to have DAC permissions.
126 cluster_conf_t
128 /etc/cluster(/.*)?
130 cluster_log
132 cluster_tmpfs_t
135 cluster_var_lib_t
138 /var/lib/pcsd(/.*)?
140 /var/lib/cluster(/.*)?
141 /var/lib/openais(/.*)?
142 /var/lib/pengine(/.*)?
143 /var/lib/corosync(/.*)?
144 /usr/lib/heartbeat(/.*)?
145 /var/lib/heartbeat(/.*)?
146 /var/lib/pacemaker(/.*)?
147 cluster_var_run_t
149 /var/run/crm(/.*)?
151 /var/run/cman_.*
152 /var/run/rsctmp(/.*)?
153 /var/run/aisexec.*
154 /var/run/heartbeat(/.*)?
155 /var/run/corosync-qnetd(/.*)?
156 /var/run/corosync-qdevice(/.*)?
157 /var/run/corosync.pid
158 /var/run/cpglockd.pid
159 /var/run/rgmanager.pid
160 /var/run/cluster/rgmanager.sk
161 fenced_lock_t
163 /var/lock/fence_manual.lock
165 fenced_tmp_t
167 fenced_tmpfs_t
170 fenced_var_run_t
173 /var/run/fence.*
175 /var/run/cluster/fence_scsi.*
176 /var/run/cluster/mpath.devices
177 /var/run/cluster/fenced_override
178 root_t
180 /sysroot/ostree/deploy/.*-atomic/deploy(/.*)?
182 /
183 /initrd
184 snmpd_var_lib_t
186 /var/agentx(/.*)?
188 /var/net-snmp(/.*)
189 /var/lib/snmp(/.*)?
190 /var/net-snmp(/.*)?
191 /var/lib/net-snmp(/.*)?
192 /var/spool/snmptt(/.*)?
193 /usr/share/snmp/mibs/.index
194
197 SELinux requires files to have an extended attribute to define the file
198 type.
199 You can see the context of a file using the -Z option to ls
201 Policy governs the access confined processes have to these files.
203 SELinux fenced policy is very flexible allowing users to setup their
204 fenced processes in as secure a method as possible.
205 STANDARD FILE CONTEXT
207 SELinux defines the file context types for the fenced, if you wanted to
209 store files with these types in a diffent paths, you need to execute
210 the semanage command to sepecify alternate labeling and then use
211 restorecon to put the labels on disk.
212 semanage fcontext -a -t fenced_tmp_t '/srv/myfenced_content(/.*)?'
214 restorecon -R -v /srv/myfenced_content
215 Note: SELinux often uses regular expressions to specify labels that
217 match multiple files.
218 The following file types are defined for fenced:
220 fenced_exec_t
224 - Set files with the fenced_exec_t type, if you want to transition an
226 executable to the fenced_t domain.
227 Paths:
230 /usr/sbin/fenced, /usr/sbin/fence_node, /usr/sbin/fence_tool,
231 /usr/sbin/fence_virtd, /usr/sbin/fence_sanlockd, /usr/share/clus‐
232 ter/fence_scsi_check, /usr/share/cluster/fence_mpath_check,
233 /usr/share/cluster/fence_scsi_check.pl, /usr/lib/systemd/systemd-
234 fence_sanlockd, /usr/share/cluster/fence_scsi_check_hardreboot,
235 /usr/share/cluster/fence_mpath_check_hardreboot
236 fenced_lock_t
239 - Set files with the fenced_lock_t type, if you want to treat the files
241 as fenced lock data, stored under the /var/lock directory
242 fenced_tmp_t
246 - Set files with the fenced_tmp_t type, if you want to store fenced
248 temporary files in the /tmp directories.
249 fenced_tmpfs_t
253 - Set files with the fenced_tmpfs_t type, if you want to store fenced
255 files on a tmpfs file system.
256 fenced_var_log_t
260 - Set files with the fenced_var_log_t type, if you want to treat the
262 data as fenced var log data, usually stored under the /var/log direc‐
263 tory.
264 fenced_var_run_t
268 - Set files with the fenced_var_run_t type, if you want to store the
270 fenced files under the /run or /var/run directory.
271 Paths:
274 /var/run/fence.*, /var/run/cluster/fence_scsi.*, /var/run/clus‐
275 ter/mpath.devices, /var/run/cluster/fenced_override
276 Note: File context can be temporarily modified with the chcon command.
279 If you want to permanently change the file context you need to use the
280 semanage fcontext command. This will modify the SELinux labeling data‐
281 base. You will need to use restorecon to apply the labels.
282
285 semanage fcontext can also be used to manipulate default file context
286 mappings.
287 semanage permissive can also be used to manipulate whether or not a
289 process type is permissive.
290 semanage module can also be used to enable/disable/install/remove pol‐
292 icy modules.
293 semanage boolean can also be used to manipulate the booleans
295 system-config-selinux is a GUI tool available to customize SELinux pol‐
298 icy settings.
299
302 This manual page was auto-generated using sepolicy manpage .
303
306 selinux(8), fenced(8), semanage(8), restorecon(8), chcon(1), sepol‐
307 icy(8), setsebool(8)
308fenced 19-10-08 fenced_selinux(8)