1evtchnd_selinux(8) SELinux Policy evtchnd evtchnd_selinux(8)
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6 evtchnd_selinux - Security Enhanced Linux Policy for the evtchnd pro‐
7 cesses
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10 Security-Enhanced Linux secures the evtchnd processes via flexible
11 mandatory access control.
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13 The evtchnd processes execute with the evtchnd_t SELinux type. You can
14 check if you have these processes running by executing the ps command
15 with the -Z qualifier.
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17 For example:
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19 ps -eZ | grep evtchnd_t
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24 The evtchnd_t SELinux type can be entered via the evtchnd_exec_t file
25 type.
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27 The default entrypoint paths for the evtchnd_t domain are the follow‐
28 ing:
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30 /usr/sbin/evtchnd
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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 evtchnd policy is very flexible allowing users to setup their evtchnd
40 processes in as secure a method as possible.
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42 The following process types are defined for evtchnd:
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44 evtchnd_t
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46 Note: semanage permissive -a evtchnd_t can be used to make the process
47 type evtchnd_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. evtchnd
54 policy is extremely flexible and has several booleans that allow you to
55 manipulate the policy and run evtchnd with the tightest access possi‐
56 ble.
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60 If you want to allow all daemons to write corefiles to /, you must turn
61 on the allow_daemons_dump_core boolean. Disabled by default.
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63 setsebool -P allow_daemons_dump_core 1
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67 If you want to allow all daemons to use tcp wrappers, you must turn on
68 the allow_daemons_use_tcp_wrapper boolean. Disabled by default.
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70 setsebool -P allow_daemons_use_tcp_wrapper 1
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74 If you want to allow all daemons the ability to read/write terminals,
75 you must turn on the allow_daemons_use_tty boolean. Disabled by
76 default.
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78 setsebool -P allow_daemons_use_tty 1
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82 If you want to allow all domains to use other domains file descriptors,
83 you must turn on the allow_domain_fd_use boolean. Enabled by default.
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85 setsebool -P allow_domain_fd_use 1
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89 If you want to allow sysadm to debug or ptrace all processes, you must
90 turn on the allow_ptrace boolean. Disabled by default.
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92 setsebool -P allow_ptrace 1
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96 If you want to enable cluster mode for daemons, you must turn on the
97 daemons_enable_cluster_mode boolean. Disabled by default.
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99 setsebool -P daemons_enable_cluster_mode 1
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103 If you want to allow all domains to have the kernel load modules, you
104 must turn on the domain_kernel_load_modules boolean. Disabled by
105 default.
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107 setsebool -P domain_kernel_load_modules 1
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111 If you want to allow all domains to execute in fips_mode, you must turn
112 on the fips_mode boolean. Enabled by default.
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114 setsebool -P fips_mode 1
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118 If you want to enable reading of urandom for all domains, you must turn
119 on the global_ssp boolean. Disabled by default.
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121 setsebool -P global_ssp 1
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125 If you want to enable support for upstart as the init program, you must
126 turn on the init_upstart boolean. Enabled by default.
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128 setsebool -P init_upstart 1
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133 The SELinux process type evtchnd_t can manage files labeled with the
134 following file types. The paths listed are the default paths for these
135 file types. Note the processes UID still need to have DAC permissions.
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137 cluster_conf_t
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139 /etc/cluster(/.*)?
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141 cluster_var_lib_t
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143 /var/lib(64)?/openais(/.*)?
144 /var/lib(64)?/pengine(/.*)?
145 /var/lib(64)?/corosync(/.*)?
146 /usr/lib(64)?/heartbeat(/.*)?
147 /var/lib(64)?/heartbeat(/.*)?
148 /var/lib(64)?/pacemaker(/.*)?
149 /var/lib/cluster(/.*)?
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151 cluster_var_run_t
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153 /var/run/crm(/.*)?
154 /var/run/cman_.*
155 /var/run/rsctmp(/.*)?
156 /var/run/aisexec.*
157 /var/run/heartbeat(/.*)?
158 /var/run/cpglockd.pid
159 /var/run/corosync.pid
160 /var/run/rgmanager.pid
161 /var/run/cluster/rgmanager.sk
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163 evtchnd_var_log_t
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165 /var/log/evtchnd.log.*
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167 evtchnd_var_run_t
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169 /var/run/evtchnd
170 /var/run/evtchnd.pid
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172 initrc_tmp_t
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175 mnt_t
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177 /mnt(/[^/]*)
178 /mnt(/[^/]*)?
179 /rhev(/[^/]*)?
180 /media(/[^/]*)
181 /media(/[^/]*)?
182 /etc/rhgb(/.*)?
183 /media/.hal-.*
184 /net
185 /afs
186 /rhev
187 /misc
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189 root_t
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191 /
192 /initrd
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194 tmp_t
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196 /tmp
197 /usr/tmp
198 /var/tmp
199 /tmp-inst
200 /var/tmp-inst
201 /var/tmp/vi.recover
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205 SELinux requires files to have an extended attribute to define the file
206 type.
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208 You can see the context of a file using the -Z option to ls
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210 Policy governs the access confined processes have to these files.
211 SELinux evtchnd policy is very flexible allowing users to setup their
212 evtchnd processes in as secure a method as possible.
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214 STANDARD FILE CONTEXT
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216 SELinux defines the file context types for the evtchnd, if you wanted
217 to store files with these types in a diffent paths, you need to execute
218 the semanage command to sepecify alternate labeling and then use
219 restorecon to put the labels on disk.
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221 semanage fcontext -a -t evtchnd_var_run_t '/srv/myevtchnd_con‐
222 tent(/.*)?'
223 restorecon -R -v /srv/myevtchnd_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 evtchnd:
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232 evtchnd_exec_t
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234 - Set files with the evtchnd_exec_t type, if you want to transition an
235 executable to the evtchnd_t domain.
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239 evtchnd_var_log_t
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241 - Set files with the evtchnd_var_log_t type, if you want to treat the
242 data as evtchnd var log data, usually stored under the /var/log direc‐
243 tory.
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247 evtchnd_var_run_t
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249 - Set files with the evtchnd_var_run_t type, if you want to store the
250 evtchnd files under the /run or /var/run directory.
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253 Paths:
254 /var/run/evtchnd, /var/run/evtchnd.pid
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257 Note: File context can be temporarily modified with the chcon command.
258 If you want to permanently change the file context you need to use the
259 semanage fcontext command. This will modify the SELinux labeling data‐
260 base. You will need to use restorecon to apply the labels.
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264 semanage fcontext can also be used to manipulate default file context
265 mappings.
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267 semanage permissive can also be used to manipulate whether or not a
268 process type is permissive.
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270 semanage module can also be used to enable/disable/install/remove pol‐
271 icy modules.
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273 semanage boolean can also be used to manipulate the booleans
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276 system-config-selinux is a GUI tool available to customize SELinux pol‐
277 icy settings.
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281 This manual page was auto-generated using sepolicy manpage .
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285 selinux(8), evtchnd(8), semanage(8), restorecon(8), chcon(1) , setse‐
286 bool(8)
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290evtchnd 15-06-03 evtchnd_selinux(8)