1system_dbusd_selinux(8) SELinux Policy system_dbusd system_dbusd_selinux(8)
2
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 allow all domains to execute in fips_mode, you must turn
72 on the fips_mode boolean. Enabled by default.
73 setsebool -P fips_mode 1
75 If you want to allow confined applications to run with kerberos, you
79 must turn on the kerberos_enabled boolean. Enabled by default.
80 setsebool -P kerberos_enabled 1
82 If you want to allow system to run with NIS, you must turn on the
86 nis_enabled boolean. Disabled by default.
87 setsebool -P nis_enabled 1
89 If you want to allow confined applications to use nscd shared memory,
93 you must turn on the nscd_use_shm boolean. Disabled by default.
94 setsebool -P nscd_use_shm 1
96
100 The SELinux process type system_dbusd_t can manage files labeled with
101 the following file types. The paths listed are the default paths for
102 these file types. Note the processes UID still need to have DAC per‐
103 missions.
104 security_t
106 /selinux
108 system_dbusd_tmp_t
110 system_dbusd_tmpfs_t
113 system_dbusd_var_run_t
116 /var/run/dbus(/.*)?
118 /var/named/chroot/var/run/dbus(/.*)?
119 systemd_passwd_var_run_t
121 /var/run/systemd/ask-password(/.*)?
123 /var/run/systemd/ask-password-block(/.*)?
124
127 SELinux requires files to have an extended attribute to define the file
128 type.
129 You can see the context of a file using the -Z option to ls
131 Policy governs the access confined processes have to these files.
133 SELinux system_dbusd policy is very flexible allowing users to setup
134 their system_dbusd processes in as secure a method as possible.
135 STANDARD FILE CONTEXT
137 SELinux defines the file context types for the system_dbusd, if you
139 wanted to store files with these types in a diffent paths, you need to
140 execute the semanage command to sepecify alternate labeling and then
141 use restorecon to put the labels on disk.
142 semanage fcontext -a -t system_dbusd_var_run_t '/srv/mysys‐
144 tem_dbusd_content(/.*)?'
145 restorecon -R -v /srv/mysystem_dbusd_content
146 Note: SELinux often uses regular expressions to specify labels that
148 match multiple files.
149 The following file types are defined for system_dbusd:
151 system_dbusd_tmp_t
155 - Set files with the system_dbusd_tmp_t type, if you want to store sys‐
157 tem dbusd temporary files in the /tmp directories.
158 system_dbusd_tmpfs_t
162 - Set files with the system_dbusd_tmpfs_t type, if you want to store
164 system dbusd files on a tmpfs file system.
165 system_dbusd_var_lib_t
169 - Set files with the system_dbusd_var_lib_t type, if you want to store
171 the system dbusd files under the /var/lib directory.
172 Paths:
175 /var/lib/dbus(/.*)?, /var/cache/ibus(/.*)?
176 system_dbusd_var_run_t
179 - Set files with the system_dbusd_var_run_t type, if you want to store
181 the system dbusd files under the /run or /var/run directory.
182 Paths:
185 /var/run/dbus(/.*)?, /var/named/chroot/var/run/dbus(/.*)?
186 Note: File context can be temporarily modified with the chcon command.
189 If you want to permanently change the file context you need to use the
190 semanage fcontext command. This will modify the SELinux labeling data‐
191 base. You will need to use restorecon to apply the labels.
192
195 semanage fcontext can also be used to manipulate default file context
196 mappings.
197 semanage permissive can also be used to manipulate whether or not a
199 process type is permissive.
200 semanage module can also be used to enable/disable/install/remove pol‐
202 icy modules.
203 semanage boolean can also be used to manipulate the booleans
205 system-config-selinux is a GUI tool available to customize SELinux pol‐
208 icy settings.
209
212 This manual page was auto-generated using sepolicy manpage .
213
216 selinux(8), system_dbusd(8), semanage(8), restorecon(8), chcon(1),
217 sepolicy(8), setsebool(8)
218system_dbusd 19-05-30 system_dbusd_selinux(8)