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
8
10 Security-Enhanced Linux secures the system_dbusd processes via flexible
11 mandatory access control.
12 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.
16 For example:
18 ps -eZ | grep system_dbusd_t
20
24 The system_dbusd_t SELinux type can be entered via the dbusd_exec_t
25 file type.
26 The default entrypoint paths for the system_dbusd_t domain are the fol‐
28 lowing:
29 /usr/bin/dbus-daemon(-1)?, /bin/dbus-daemon, /usr/bin/dbus-broker,
31 /usr/bin/dbus-broker-launch, /lib/dbus-1/dbus-daemon-launch-helper,
32 /usr/lib/dbus-1/dbus-daemon-launch-helper, /usr/libexec/dbus-1/dbus-
33 daemon-launch-helper
34
36 SELinux defines process types (domains) for each process running on the
37 system
38 You can see the context of a process using the -Z option to ps
40 Policy governs the access confined processes have to files. SELinux
42 system_dbusd policy is very flexible allowing users to setup their sys‐
43 tem_dbusd processes in as secure a method as possible.
44 The following process types are defined for system_dbusd:
46 system_dbusd_t
48 Note: semanage permissive -a system_dbusd_t can be used to make the
50 process type system_dbusd_t permissive. SELinux does not deny access to
51 permissive process types, but the AVC (SELinux denials) messages are
52 still generated.
53
56 SELinux policy is customizable based on least access required. sys‐
57 tem_dbusd policy is extremely flexible and has several booleans that
58 allow you to manipulate the policy and run system_dbusd with the tight‐
59 est access possible.
60 If you want to allow users to resolve user passwd entries directly from
64 ldap rather then using a sssd server, you must turn on the authlo‐
65 gin_nsswitch_use_ldap boolean. Disabled by default.
66 setsebool -P authlogin_nsswitch_use_ldap 1
68 If you want to deny all system processes and Linux users to use blue‐
72 tooth wireless technology, you must turn on the deny_bluetooth boolean.
73 Enabled by default.
74 setsebool -P deny_bluetooth 1
76 If you want to allow all domains to execute in fips_mode, you must turn
80 on the fips_mode boolean. Enabled by default.
81 setsebool -P fips_mode 1
83 If you want to allow confined applications to run with kerberos, you
87 must turn on the kerberos_enabled boolean. Enabled by default.
88 setsebool -P kerberos_enabled 1
90 If you want to allow system to run with NIS, you must turn on the
94 nis_enabled boolean. Disabled by default.
95 setsebool -P nis_enabled 1
97 If you want to allow confined applications to use nscd shared memory,
101 you must turn on the nscd_use_shm boolean. Disabled by default.
102 setsebool -P nscd_use_shm 1
104
108 The SELinux process type system_dbusd_t can manage files labeled with
109 the following file types. The paths listed are the default paths for
110 these file types. Note the processes UID still need to have DAC per‐
111 missions.
112 security_t
114 /selinux
116 system_dbusd_tmp_t
118 system_dbusd_tmpfs_t
121 system_dbusd_var_run_t
124 /var/run/dbus(/.*)?
126 /var/named/chroot/var/run/dbus(/.*)?
127 systemd_passwd_var_run_t
129 /var/run/systemd/ask-password(/.*)?
131 /var/run/systemd/ask-password-block(/.*)?
132
135 SELinux requires files to have an extended attribute to define the file
136 type.
137 You can see the context of a file using the -Z option to ls
139 Policy governs the access confined processes have to these files.
141 SELinux system_dbusd policy is very flexible allowing users to setup
142 their system_dbusd processes in as secure a method as possible.
143 STANDARD FILE CONTEXT
145 SELinux defines the file context types for the system_dbusd, if you
147 wanted to store files with these types in a diffent paths, you need to
148 execute the semanage command to sepecify alternate labeling and then
149 use restorecon to put the labels on disk.
150 semanage fcontext -a -t system_dbusd_var_run_t '/srv/mysys‐
152 tem_dbusd_content(/.*)?'
153 restorecon -R -v /srv/mysystem_dbusd_content
154 Note: SELinux often uses regular expressions to specify labels that
156 match multiple files.
157 The following file types are defined for system_dbusd:
159 system_dbusd_tmp_t
163 - Set files with the system_dbusd_tmp_t type, if you want to store sys‐
165 tem dbusd temporary files in the /tmp directories.
166 system_dbusd_tmpfs_t
170 - Set files with the system_dbusd_tmpfs_t type, if you want to store
172 system dbusd files on a tmpfs file system.
173 system_dbusd_var_lib_t
177 - Set files with the system_dbusd_var_lib_t type, if you want to store
179 the system dbusd files under the /var/lib directory.
180 Paths:
183 /var/lib/dbus(/.*)?, /var/cache/ibus(/.*)?
184 system_dbusd_var_run_t
187 - Set files with the system_dbusd_var_run_t type, if you want to store
189 the system dbusd files under the /run or /var/run directory.
190 Paths:
193 /var/run/dbus(/.*)?, /var/named/chroot/var/run/dbus(/.*)?
194 Note: File context can be temporarily modified with the chcon command.
197 If you want to permanently change the file context you need to use the
198 semanage fcontext command. This will modify the SELinux labeling data‐
199 base. You will need to use restorecon to apply the labels.
200
203 semanage fcontext can also be used to manipulate default file context
204 mappings.
205 semanage permissive can also be used to manipulate whether or not a
207 process type is permissive.
208 semanage module can also be used to enable/disable/install/remove pol‐
210 icy modules.
211 semanage boolean can also be used to manipulate the booleans
213 system-config-selinux is a GUI tool available to customize SELinux pol‐
216 icy settings.
217
220 This manual page was auto-generated using sepolicy manpage .
221
224 selinux(8), system_dbusd(8), semanage(8), restorecon(8), chcon(1),
225 sepolicy(8), setsebool(8)
226system_dbusd 19-06-18 system_dbusd_selinux(8)