1dccm_selinux(8) SELinux Policy dccm dccm_selinux(8)
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6 dccm_selinux - Security Enhanced Linux Policy for the dccm processes
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9 Security-Enhanced Linux secures the dccm processes via flexible manda‐
10 tory access control.
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12 The dccm processes execute with the dccm_t SELinux type. You can check
13 if you have these processes running by executing the ps command with
14 the -Z qualifier.
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16 For example:
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18 ps -eZ | grep dccm_t
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23 The dccm_t SELinux type can be entered via the dccm_exec_t file type.
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25 The default entrypoint paths for the dccm_t domain are the following:
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27 /usr/libexec/dcc/dccm
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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 dccm policy is very flexible allowing users to setup their dccm pro‐
37 cesses in as secure a method as possible.
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39 The following process types are defined for dccm:
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41 dccm_t
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43 Note: semanage permissive -a dccm_t can be used to make the process
44 type dccm_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. dccm
51 policy is extremely flexible and has several booleans that allow you to
52 manipulate the policy and run dccm with the tightest access possible.
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56 If you want to allow all daemons to write corefiles to /, you must turn
57 on the allow_daemons_dump_core boolean. Disabled by default.
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59 setsebool -P allow_daemons_dump_core 1
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63 If you want to allow all daemons to use tcp wrappers, you must turn on
64 the allow_daemons_use_tcp_wrapper boolean. Disabled by default.
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66 setsebool -P allow_daemons_use_tcp_wrapper 1
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70 If you want to allow all daemons the ability to read/write terminals,
71 you must turn on the allow_daemons_use_tty boolean. Disabled by
72 default.
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74 setsebool -P allow_daemons_use_tty 1
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78 If you want to allow all domains to use other domains file descriptors,
79 you must turn on the allow_domain_fd_use boolean. Enabled by default.
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81 setsebool -P allow_domain_fd_use 1
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85 If you want to allow confined applications to run with kerberos, you
86 must turn on the allow_kerberos boolean. Enabled by default.
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88 setsebool -P allow_kerberos 1
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92 If you want to allow sysadm to debug or ptrace all processes, you must
93 turn on the allow_ptrace boolean. Disabled by default.
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95 setsebool -P allow_ptrace 1
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99 If you want to allow system to run with NIS, you must turn on the
100 allow_ypbind boolean. Disabled by default.
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102 setsebool -P allow_ypbind 1
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106 If you want to enable cluster mode for daemons, you must turn on the
107 daemons_enable_cluster_mode boolean. Disabled by default.
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109 setsebool -P daemons_enable_cluster_mode 1
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113 If you want to allow all domains to have the kernel load modules, you
114 must turn on the domain_kernel_load_modules boolean. Disabled by
115 default.
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117 setsebool -P domain_kernel_load_modules 1
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121 If you want to allow all domains to execute in fips_mode, you must turn
122 on the fips_mode boolean. Enabled by default.
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124 setsebool -P fips_mode 1
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128 If you want to enable reading of urandom for all domains, you must turn
129 on the global_ssp boolean. Disabled by default.
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131 setsebool -P global_ssp 1
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135 If you want to enable support for upstart as the init program, you must
136 turn on the init_upstart boolean. Enabled by default.
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138 setsebool -P init_upstart 1
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142 If you want to allow confined applications to use nscd shared memory,
143 you must turn on the nscd_use_shm boolean. Enabled by default.
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145 setsebool -P nscd_use_shm 1
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150 SELinux defines port types to represent TCP and UDP ports.
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152 You can see the types associated with a port by using the following
153 command:
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155 semanage port -l
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158 Policy governs the access confined processes have to these ports.
159 SELinux dccm policy is very flexible allowing users to setup their dccm
160 processes in as secure a method as possible.
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162 The following port types are defined for dccm:
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165 dccm_port_t
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169 Default Defined Ports:
170 tcp 5679
171 udp 5679
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174 The SELinux process type dccm_t can manage files labeled with the fol‐
175 lowing file types. The paths listed are the default paths for these
176 file types. Note the processes UID still need to have DAC permissions.
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178 cluster_conf_t
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180 /etc/cluster(/.*)?
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182 cluster_var_lib_t
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184 /var/lib(64)?/openais(/.*)?
185 /var/lib(64)?/pengine(/.*)?
186 /var/lib(64)?/corosync(/.*)?
187 /usr/lib(64)?/heartbeat(/.*)?
188 /var/lib(64)?/heartbeat(/.*)?
189 /var/lib(64)?/pacemaker(/.*)?
190 /var/lib/cluster(/.*)?
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192 cluster_var_run_t
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194 /var/run/crm(/.*)?
195 /var/run/cman_.*
196 /var/run/rsctmp(/.*)?
197 /var/run/aisexec.*
198 /var/run/heartbeat(/.*)?
199 /var/run/cpglockd.pid
200 /var/run/corosync.pid
201 /var/run/rgmanager.pid
202 /var/run/cluster/rgmanager.sk
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204 dcc_client_map_t
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206 /etc/dcc/map
207 /var/dcc/map
208 /var/lib/dcc/map
209 /var/run/dcc/map
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211 dcc_var_t
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213 /etc/dcc(/.*)?
214 /var/dcc(/.*)?
215 /var/lib/dcc(/.*)?
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217 dccm_tmp_t
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220 dccm_var_run_t
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223 initrc_tmp_t
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226 mnt_t
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228 /mnt(/[^/]*)
229 /mnt(/[^/]*)?
230 /rhev(/[^/]*)?
231 /media(/[^/]*)
232 /media(/[^/]*)?
233 /etc/rhgb(/.*)?
234 /media/.hal-.*
235 /net
236 /afs
237 /rhev
238 /misc
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240 root_t
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242 /
243 /initrd
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245 tmp_t
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247 /tmp
248 /usr/tmp
249 /var/tmp
250 /tmp-inst
251 /var/tmp-inst
252 /var/tmp/vi.recover
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256 SELinux requires files to have an extended attribute to define the file
257 type.
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259 You can see the context of a file using the -Z option to ls
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261 Policy governs the access confined processes have to these files.
262 SELinux dccm policy is very flexible allowing users to setup their dccm
263 processes in as secure a method as possible.
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265 STANDARD FILE CONTEXT
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267 SELinux defines the file context types for the dccm, if you wanted to
268 store files with these types in a diffent paths, you need to execute
269 the semanage command to sepecify alternate labeling and then use
270 restorecon to put the labels on disk.
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272 semanage fcontext -a -t dccm_var_run_t '/srv/mydccm_content(/.*)?'
273 restorecon -R -v /srv/mydccm_content
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275 Note: SELinux often uses regular expressions to specify labels that
276 match multiple files.
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278 The following file types are defined for dccm:
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282 dccm_exec_t
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284 - Set files with the dccm_exec_t type, if you want to transition an
285 executable to the dccm_t domain.
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289 dccm_tmp_t
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291 - Set files with the dccm_tmp_t type, if you want to store dccm tempo‐
292 rary files in the /tmp directories.
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296 dccm_var_run_t
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298 - Set files with the dccm_var_run_t type, if you want to store the dccm
299 files under the /run or /var/run directory.
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303 Note: File context can be temporarily modified with the chcon command.
304 If you want to permanently change the file context you need to use the
305 semanage fcontext command. This will modify the SELinux labeling data‐
306 base. You will need to use restorecon to apply the labels.
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310 semanage fcontext can also be used to manipulate default file context
311 mappings.
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313 semanage permissive can also be used to manipulate whether or not a
314 process type is permissive.
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316 semanage module can also be used to enable/disable/install/remove pol‐
317 icy modules.
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319 semanage port can also be used to manipulate the port definitions
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321 semanage boolean can also be used to manipulate the booleans
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324 system-config-selinux is a GUI tool available to customize SELinux pol‐
325 icy settings.
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329 This manual page was auto-generated using sepolicy manpage .
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333 selinux(8), dccm(8), semanage(8), restorecon(8), chcon(1) , setse‐
334 bool(8)
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338dccm 15-06-03 dccm_selinux(8)