1ddclient_selinux(8) SELinux Policy ddclient ddclient_selinux(8)
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6 ddclient_selinux - Security Enhanced Linux Policy for the ddclient pro‐
7 cesses
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10 Security-Enhanced Linux secures the ddclient processes via flexible
11 mandatory access control.
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13 The ddclient processes execute with the ddclient_t SELinux type. You
14 can check if you have these processes running by executing the ps com‐
15 mand with the -Z qualifier.
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17 For example:
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19 ps -eZ | grep ddclient_t
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24 The ddclient_t SELinux type can be entered via the ddclient_exec_t file
25 type.
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27 The default entrypoint paths for the ddclient_t domain are the follow‐
28 ing:
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30 /usr/sbin/ddtcd, /usr/sbin/ddclient
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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
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38 Policy governs the access confined processes have to files. SELinux
39 ddclient policy is very flexible allowing users to setup their ddclient
40 processes in as secure a method as possible.
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42 The following process types are defined for ddclient:
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44 ddclient_t
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46 Note: semanage permissive -a ddclient_t can be used to make the process
47 type ddclient_t permissive. SELinux does not deny access to permissive
48 process types, but the AVC (SELinux denials) messages are still gener‐
49 ated.
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53 SELinux policy is customizable based on least access required.
54 ddclient policy is extremely flexible and has several booleans that
55 allow you to manipulate the policy and run ddclient with the tightest
56 access possible.
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60 If you want to allow all daemons to write corefiles to /, you must turn
61 on the daemons_dump_core boolean. Disabled by default.
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63 setsebool -P daemons_dump_core 1
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67 If you want to enable cluster mode for daemons, you must turn on the
68 daemons_enable_cluster_mode boolean. Enabled by default.
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70 setsebool -P daemons_enable_cluster_mode 1
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74 If you want to allow all daemons to use tcp wrappers, you must turn on
75 the daemons_use_tcp_wrapper boolean. Disabled by default.
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77 setsebool -P daemons_use_tcp_wrapper 1
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81 If you want to allow all daemons the ability to read/write terminals,
82 you must turn on the daemons_use_tty boolean. Disabled by default.
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84 setsebool -P daemons_use_tty 1
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88 If you want to deny any process from ptracing or debugging any other
89 processes, you must turn on the deny_ptrace boolean. Enabled by
90 default.
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92 setsebool -P deny_ptrace 1
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96 If you want to allow any process to mmap any file on system with
97 attribute file_type, you must turn on the domain_can_mmap_files bool‐
98 ean. Enabled by default.
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100 setsebool -P domain_can_mmap_files 1
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104 If you want to allow all domains write to kmsg_device, while kernel is
105 executed with systemd.log_target=kmsg parameter, you must turn on the
106 domain_can_write_kmsg boolean. Disabled by default.
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108 setsebool -P domain_can_write_kmsg 1
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112 If you want to allow all domains to use other domains file descriptors,
113 you must turn on the domain_fd_use boolean. Enabled by default.
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115 setsebool -P domain_fd_use 1
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119 If you want to allow all domains to have the kernel load modules, you
120 must turn on the domain_kernel_load_modules boolean. Disabled by
121 default.
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123 setsebool -P domain_kernel_load_modules 1
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127 If you want to allow all domains to execute in fips_mode, you must turn
128 on the fips_mode boolean. Enabled by default.
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130 setsebool -P fips_mode 1
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134 If you want to enable reading of urandom for all domains, you must turn
135 on the global_ssp boolean. Disabled by default.
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137 setsebool -P global_ssp 1
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141 If you want to allow confined applications to use nscd shared memory,
142 you must turn on the nscd_use_shm boolean. Disabled by default.
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144 setsebool -P nscd_use_shm 1
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149 The SELinux process type ddclient_t can manage files labeled with the
150 following file types. The paths listed are the default paths for these
151 file types. Note the processes UID still need to have DAC permissions.
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153 cluster_conf_t
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155 /etc/cluster(/.*)?
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157 cluster_var_lib_t
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159 /var/lib/pcsd(/.*)?
160 /var/lib/cluster(/.*)?
161 /var/lib/openais(/.*)?
162 /var/lib/pengine(/.*)?
163 /var/lib/corosync(/.*)?
164 /usr/lib/heartbeat(/.*)?
165 /var/lib/heartbeat(/.*)?
166 /var/lib/pacemaker(/.*)?
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168 cluster_var_run_t
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170 /var/run/crm(/.*)?
171 /var/run/cman_.*
172 /var/run/rsctmp(/.*)?
173 /var/run/aisexec.*
174 /var/run/heartbeat(/.*)?
175 /var/run/corosync-qnetd(/.*)?
176 /var/run/corosync-qdevice(/.*)?
177 /var/run/cpglockd.pid
178 /var/run/corosync.pid
179 /var/run/rgmanager.pid
180 /var/run/cluster/rgmanager.sk
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182 ddclient_tmp_t
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185 ddclient_var_lib_t
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187 /var/lib/ddt-client(/.*)?
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189 ddclient_var_run_t
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191 /var/run/ddtcd.pid
192 /var/run/ddclient.pid
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194 ddclient_var_t
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196 /var/cache/ddclient(/.*)?
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198 root_t
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200 /sysroot/ostree/deploy/.*-atomic.*/deploy(/.*)?
201 /
202 /initrd
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206 SELinux requires files to have an extended attribute to define the file
207 type.
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209 You can see the context of a file using the -Z option to ls
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211 Policy governs the access confined processes have to these files.
212 SELinux ddclient policy is very flexible allowing users to setup their
213 ddclient processes in as secure a method as possible.
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215 STANDARD FILE CONTEXT
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217 SELinux defines the file context types for the ddclient, if you wanted
218 to store files with these types in a diffent paths, you need to execute
219 the semanage command to sepecify alternate labeling and then use
220 restorecon to put the labels on disk.
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222 semanage fcontext -a -t ddclient_var_t '/srv/myddclient_content(/.*)?'
223 restorecon -R -v /srv/myddclient_content
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225 Note: SELinux often uses regular expressions to specify labels that
226 match multiple files.
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228 The following file types are defined for ddclient:
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232 ddclient_etc_t
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234 - Set files with the ddclient_etc_t type, if you want to store ddclient
235 files in the /etc directories.
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238 Paths:
239 /etc/ddtcd.conf, /etc/ddclient.conf
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242 ddclient_exec_t
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244 - Set files with the ddclient_exec_t type, if you want to transition an
245 executable to the ddclient_t domain.
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248 Paths:
249 /usr/sbin/ddtcd, /usr/sbin/ddclient
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252 ddclient_initrc_exec_t
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254 - Set files with the ddclient_initrc_exec_t type, if you want to tran‐
255 sition an executable to the ddclient_initrc_t domain.
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259 ddclient_log_t
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261 - Set files with the ddclient_log_t type, if you want to treat the data
262 as ddclient log data, usually stored under the /var/log directory.
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266 ddclient_tmp_t
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268 - Set files with the ddclient_tmp_t type, if you want to store ddclient
269 temporary files in the /tmp directories.
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273 ddclient_var_lib_t
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275 - Set files with the ddclient_var_lib_t type, if you want to store the
276 ddclient files under the /var/lib directory.
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280 ddclient_var_run_t
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282 - Set files with the ddclient_var_run_t type, if you want to store the
283 ddclient files under the /run or /var/run directory.
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286 Paths:
287 /var/run/ddtcd.pid, /var/run/ddclient.pid
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290 ddclient_var_t
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292 - Set files with the ddclient_var_t type, if you want to store the ddcl
293 files under the /var directory.
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297 Note: File context can be temporarily modified with the chcon command.
298 If you want to permanently change the file context you need to use the
299 semanage fcontext command. This will modify the SELinux labeling data‐
300 base. You will need to use restorecon to apply the labels.
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304 semanage fcontext can also be used to manipulate default file context
305 mappings.
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307 semanage permissive can also be used to manipulate whether or not a
308 process type is permissive.
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310 semanage module can also be used to enable/disable/install/remove pol‐
311 icy modules.
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313 semanage boolean can also be used to manipulate the booleans
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316 system-config-selinux is a GUI tool available to customize SELinux pol‐
317 icy settings.
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321 This manual page was auto-generated using sepolicy manpage .
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325 selinux(8), ddclient(8), semanage(8), restorecon(8), chcon(1), sepol‐
326 icy(8) , setsebool(8)
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330ddclient 19-04-25 ddclient_selinux(8)