1system_dbusd_selinux(8) SELinux Policy system_dbusd system_dbusd_selinux(8)
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6 system_dbusd_selinux - Security Enhanced Linux Policy for the sys‐
7 tem_dbusd processes
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10 Security-Enhanced Linux secures the system_dbusd processes via flexible
11 mandatory access control.
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13 The system_dbusd processes execute with the system_dbusd_t SELinux
14 type. You can check if you have these processes running by executing
15 the ps command with the -Z qualifier.
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17 For example:
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19 ps -eZ | grep system_dbusd_t
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24 The system_dbusd_t SELinux type can be entered via the dbusd_exec_t
25 file type.
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27 The default entrypoint paths for the system_dbusd_t domain are the fol‐
28 lowing:
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30 /usr/bin/dbus-daemon(-1)?, /bin/dbus-daemon, /lib/dbus-1/dbus-daemon-
31 launch-helper, /usr/libexec/dbus-daemon-launch-helper,
32 /lib64/dbus-1/dbus-daemon-launch-helper
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35 SELinux defines process types (domains) for each process running on the
36 system
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38 You can see the context of a process using the -Z option to ps
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40 Policy governs the access confined processes have to files. SELinux
41 system_dbusd policy is very flexible allowing users to setup their sys‐
42 tem_dbusd processes in as secure a method as possible.
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44 The following process types are defined for system_dbusd:
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46 system_dbusd_t
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48 Note: semanage permissive -a system_dbusd_t can be used to make the
49 process type system_dbusd_t permissive. SELinux does not deny access to
50 permissive process types, but the AVC (SELinux denials) messages are
51 still generated.
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55 SELinux policy is customizable based on least access required. sys‐
56 tem_dbusd policy is extremely flexible and has several booleans that
57 allow you to manipulate the policy and run system_dbusd with the tight‐
58 est access possible.
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62 If you want to allow all daemons the ability to read/write terminals,
63 you must turn on the allow_daemons_use_tty boolean. Disabled by
64 default.
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66 setsebool -P allow_daemons_use_tty 1
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70 If you want to allow all domains to use other domains file descriptors,
71 you must turn on the allow_domain_fd_use boolean. Enabled by default.
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73 setsebool -P allow_domain_fd_use 1
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77 If you want to allow confined applications to run with kerberos, you
78 must turn on the allow_kerberos boolean. Enabled by default.
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80 setsebool -P allow_kerberos 1
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84 If you want to allow sysadm to debug or ptrace all processes, you must
85 turn on the allow_ptrace boolean. Disabled by default.
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87 setsebool -P allow_ptrace 1
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91 If you want to allow system to run with NIS, you must turn on the
92 allow_ypbind boolean. Disabled by default.
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94 setsebool -P allow_ypbind 1
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98 If you want to allow all domains to have the kernel load modules, you
99 must turn on the domain_kernel_load_modules boolean. Disabled by
100 default.
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102 setsebool -P domain_kernel_load_modules 1
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106 If you want to allow all domains to execute in fips_mode, you must turn
107 on the fips_mode boolean. Enabled by default.
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109 setsebool -P fips_mode 1
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113 If you want to enable reading of urandom for all domains, you must turn
114 on the global_ssp boolean. Disabled by default.
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116 setsebool -P global_ssp 1
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120 If you want to allow confined applications to use nscd shared memory,
121 you must turn on the nscd_use_shm boolean. Enabled by default.
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123 setsebool -P nscd_use_shm 1
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128 The SELinux process type system_dbusd_t can manage files labeled with
129 the following file types. The paths listed are the default paths for
130 these file types. Note the processes UID still need to have DAC per‐
131 missions.
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133 initrc_tmp_t
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136 mnt_t
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138 /mnt(/[^/]*)
139 /mnt(/[^/]*)?
140 /rhev(/[^/]*)?
141 /media(/[^/]*)
142 /media(/[^/]*)?
143 /etc/rhgb(/.*)?
144 /media/.hal-.*
145 /net
146 /afs
147 /rhev
148 /misc
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150 security_t
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153 system_dbusd_tmp_t
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156 system_dbusd_var_run_t
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158 /var/run/dbus(/.*)?
159 /var/named/chroot/var/run/dbus(/.*)?
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161 tmp_t
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163 /tmp
164 /usr/tmp
165 /var/tmp
166 /tmp-inst
167 /var/tmp-inst
168 /var/tmp/vi.recover
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172 SELinux requires files to have an extended attribute to define the file
173 type.
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175 You can see the context of a file using the -Z option to ls
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177 Policy governs the access confined processes have to these files.
178 SELinux system_dbusd policy is very flexible allowing users to setup
179 their system_dbusd processes in as secure a method as possible.
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181 STANDARD FILE CONTEXT
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183 SELinux defines the file context types for the system_dbusd, if you
184 wanted to store files with these types in a diffent paths, you need to
185 execute the semanage command to sepecify alternate labeling and then
186 use restorecon to put the labels on disk.
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188 semanage fcontext -a -t system_dbusd_var_run_t '/srv/mysys‐
189 tem_dbusd_content(/.*)?'
190 restorecon -R -v /srv/mysystem_dbusd_content
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192 Note: SELinux often uses regular expressions to specify labels that
193 match multiple files.
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195 The following file types are defined for system_dbusd:
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199 system_dbusd_tmp_t
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201 - Set files with the system_dbusd_tmp_t type, if you want to store sys‐
202 tem dbusd temporary files in the /tmp directories.
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206 system_dbusd_var_lib_t
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208 - Set files with the system_dbusd_var_lib_t type, if you want to store
209 the system dbusd files under the /var/lib directory.
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213 system_dbusd_var_run_t
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215 - Set files with the system_dbusd_var_run_t type, if you want to store
216 the system dbusd files under the /run or /var/run directory.
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219 Paths:
220 /var/run/dbus(/.*)?, /var/named/chroot/var/run/dbus(/.*)?
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223 Note: File context can be temporarily modified with the chcon command.
224 If you want to permanently change the file context you need to use the
225 semanage fcontext command. This will modify the SELinux labeling data‐
226 base. You will need to use restorecon to apply the labels.
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230 semanage fcontext can also be used to manipulate default file context
231 mappings.
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233 semanage permissive can also be used to manipulate whether or not a
234 process type is permissive.
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236 semanage module can also be used to enable/disable/install/remove pol‐
237 icy modules.
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239 semanage boolean can also be used to manipulate the booleans
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242 system-config-selinux is a GUI tool available to customize SELinux pol‐
243 icy settings.
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247 This manual page was auto-generated using sepolicy manpage .
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251 selinux(8), system_dbusd(8), semanage(8), restorecon(8), chcon(1) ,
252 setsebool(8)
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256system_dbusd 15-06-03 system_dbusd_selinux(8)