1ctdbd_selinux(8) SELinux Policy ctdbd ctdbd_selinux(8)
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6 ctdbd_selinux - Security Enhanced Linux Policy for the ctdbd processes
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9 Security-Enhanced Linux secures the ctdbd processes via flexible manda‐
10 tory access control.
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12 The ctdbd processes execute with the ctdbd_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:
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18 ps -eZ | grep ctdbd_t
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23 The ctdbd_t SELinux type can be entered via the ctdbd_exec_t file type.
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25 The default entrypoint paths for the ctdbd_t domain are the following:
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27 /etc/ctdb/events.d/.*, /usr/sbin/ctdbd, /usr/sbin/ctdbd_wrapper
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30 SELinux defines process types (domains) for each process running on the
31 system
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33 You can see the context of a process using the -Z option to ps
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35 Policy governs the access confined processes have to files. SELinux
36 ctdbd policy is very flexible allowing users to setup their ctdbd pro‐
37 cesses in as secure a method as possible.
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39 The following process types are defined for ctdbd:
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41 ctdbd_t
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43 Note: semanage permissive -a ctdbd_t can be used to make the process
44 type ctdbd_t permissive. SELinux does not deny access to permissive
45 process types, but the AVC (SELinux denials) messages are still gener‐
46 ated.
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50 SELinux policy is customizable based on least access required. ctdbd
51 policy is extremely flexible and has several booleans that allow you to
52 manipulate the policy and run ctdbd with the tightest access possible.
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56 If you want to allow all domains to execute in fips_mode, you must turn
57 on the fips_mode boolean. Enabled by default.
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59 setsebool -P fips_mode 1
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64 SELinux defines port types to represent TCP and UDP ports.
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66 You can see the types associated with a port by using the following
67 command:
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69 semanage port -l
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72 Policy governs the access confined processes have to these ports.
73 SELinux ctdbd policy is very flexible allowing users to setup their ct‐
74 dbd processes in as secure a method as possible.
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76 The following port types are defined for ctdbd:
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79 ctdb_port_t
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83 Default Defined Ports:
84 tcp 4379
85 udp 4379
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88 The SELinux process type ctdbd_t can manage files labeled with the fol‐
89 lowing file types. The paths listed are the default paths for these
90 file types. Note the processes UID still need to have DAC permissions.
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92 cifs_t
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95 cluster_conf_t
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97 /etc/cluster(/.*)?
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99 cluster_var_lib_t
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101 /var/lib/pcsd(/.*)?
102 /var/lib/cluster(/.*)?
103 /var/lib/openais(/.*)?
104 /var/lib/pengine(/.*)?
105 /var/lib/corosync(/.*)?
106 /usr/lib/heartbeat(/.*)?
107 /var/lib/heartbeat(/.*)?
108 /var/lib/pacemaker(/.*)?
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110 cluster_var_run_t
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112 /var/run/crm(/.*)?
113 /var/run/cman_.*
114 /var/run/rsctmp(/.*)?
115 /var/run/aisexec.*
116 /var/run/heartbeat(/.*)?
117 /var/run/pcsd-ruby.socket
118 /var/run/corosync-qnetd(/.*)?
119 /var/run/corosync-qdevice(/.*)?
120 /var/run/corosync.pid
121 /var/run/cpglockd.pid
122 /var/run/rgmanager.pid
123 /var/run/cluster/rgmanager.sk
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125 ctdbd_exec_t
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127 /etc/ctdb/events.d/.*
128 /usr/sbin/ctdbd
129 /usr/sbin/ctdbd_wrapper
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131 ctdbd_spool_t
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133 /var/spool/ctdb(/.*)?
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135 ctdbd_tmp_t
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138 ctdbd_var_lib_t
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140 /var/lib/ctdb(/.*)?
141 /var/lib/ctdbd(/.*)?
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143 ctdbd_var_run_t
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145 /var/run/ctdb(/.*)?
146 /var/run/ctdbd(/.*)?
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148 ctdbd_var_t
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150 /var/ctdb(/.*)?
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152 ecryptfs_t
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154 /home/[^/]+/.Private(/.*)?
155 /home/[^/]+/.ecryptfs(/.*)?
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157 fusefs_t
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159 /var/run/user/[^/]*/gvfs
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161 krb5_host_rcache_t
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163 /var/tmp/krb5_0.rcache2
164 /var/cache/krb5rcache(/.*)?
165 /var/tmp/nfs_0
166 /var/tmp/DNS_25
167 /var/tmp/host_0
168 /var/tmp/imap_0
169 /var/tmp/HTTP_23
170 /var/tmp/HTTP_48
171 /var/tmp/ldap_55
172 /var/tmp/ldap_487
173 /var/tmp/ldapmap1_0
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175 nfs_t
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178 root_t
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180 /sysroot/ostree/deploy/.*-atomic/deploy(/.*)?
181 /
182 /initrd
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184 systemd_passwd_var_run_t
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186 /var/run/systemd/ask-password(/.*)?
187 /var/run/systemd/ask-password-block(/.*)?
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191 SELinux requires files to have an extended attribute to define the file
192 type.
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194 You can see the context of a file using the -Z option to ls
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196 Policy governs the access confined processes have to these files.
197 SELinux ctdbd policy is very flexible allowing users to setup their ct‐
198 dbd processes in as secure a method as possible.
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200 EQUIVALENCE DIRECTORIES
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203 ctdbd policy stores data with multiple different file context types un‐
204 der the /var/lib/ctdb directory. If you would like to store the data
205 in a different directory you can use the semanage command to create an
206 equivalence mapping. If you wanted to store this data under the /srv
207 directory you would execute the following command:
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209 semanage fcontext -a -e /var/lib/ctdb /srv/ctdb
210 restorecon -R -v /srv/ctdb
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212 ctdbd policy stores data with multiple different file context types un‐
213 der the /var/run/ctdb directory. If you would like to store the data
214 in a different directory you can use the semanage command to create an
215 equivalence mapping. If you wanted to store this data under the /srv
216 directory you would execute the following command:
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218 semanage fcontext -a -e /var/run/ctdb /srv/ctdb
219 restorecon -R -v /srv/ctdb
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221 STANDARD FILE CONTEXT
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223 SELinux defines the file context types for the ctdbd, if you wanted to
224 store files with these types in a diffent paths, you need to execute
225 the semanage command to specify alternate labeling and then use re‐
226 storecon to put the labels on disk.
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228 semanage fcontext -a -t ctdbd_var_run_t '/srv/myctdbd_content(/.*)?'
229 restorecon -R -v /srv/myctdbd_content
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231 Note: SELinux often uses regular expressions to specify labels that
232 match multiple files.
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234 The following file types are defined for ctdbd:
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238 ctdbd_exec_t
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240 - Set files with the ctdbd_exec_t type, if you want to transition an
241 executable to the ctdbd_t domain.
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244 Paths:
245 /etc/ctdb/events.d/.*, /usr/sbin/ctdbd, /usr/sbin/ctdbd_wrapper
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248 ctdbd_initrc_exec_t
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250 - Set files with the ctdbd_initrc_exec_t type, if you want to transi‐
251 tion an executable to the ctdbd_initrc_t domain.
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255 ctdbd_log_t
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257 - Set files with the ctdbd_log_t type, if you want to treat the data as
258 ctdbd log data, usually stored under the /var/log directory.
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261 Paths:
262 /var/log/ctdb.log.*, /var/log/log.ctdb.*
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265 ctdbd_spool_t
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267 - Set files with the ctdbd_spool_t type, if you want to store the ctdbd
268 files under the /var/spool directory.
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272 ctdbd_tmp_t
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274 - Set files with the ctdbd_tmp_t type, if you want to store ctdbd tem‐
275 porary files in the /tmp directories.
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279 ctdbd_var_lib_t
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281 - Set files with the ctdbd_var_lib_t type, if you want to store the ct‐
282 dbd files under the /var/lib directory.
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285 Paths:
286 /var/lib/ctdb(/.*)?, /var/lib/ctdbd(/.*)?
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289 ctdbd_var_run_t
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291 - Set files with the ctdbd_var_run_t type, if you want to store the ct‐
292 dbd files under the /run or /var/run directory.
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295 Paths:
296 /var/run/ctdb(/.*)?, /var/run/ctdbd(/.*)?
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299 ctdbd_var_t
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301 - Set files with the ctdbd_var_t type, if you want to store the c files
302 under the /var directory.
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306 Note: File context can be temporarily modified with the chcon command.
307 If you want to permanently change the file context you need to use the
308 semanage fcontext command. This will modify the SELinux labeling data‐
309 base. You will need to use restorecon to apply the labels.
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313 semanage fcontext can also be used to manipulate default file context
314 mappings.
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316 semanage permissive can also be used to manipulate whether or not a
317 process type is permissive.
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319 semanage module can also be used to enable/disable/install/remove pol‐
320 icy modules.
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322 semanage port can also be used to manipulate the port definitions
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324 semanage boolean can also be used to manipulate the booleans
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327 system-config-selinux is a GUI tool available to customize SELinux pol‐
328 icy settings.
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332 This manual page was auto-generated using sepolicy manpage .
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336 selinux(8), ctdbd(8), semanage(8), restorecon(8), chcon(1), sepol‐
337 icy(8), setsebool(8)
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341ctdbd 21-11-19 ctdbd_selinux(8)