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 deny all system processes and Linux users to use blue‐
64 tooth wireless technology, you must turn on the deny_bluetooth boolean.
65 Enabled by default.
66 setsebool -P deny_bluetooth 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 system to run with NIS, you must turn on the
79 nis_enabled boolean. Disabled by default.
80 setsebool -P nis_enabled 1
82
86 The SELinux process type system_dbusd_t can manage files labeled with
87 the following file types. The paths listed are the default paths for
88 these file types. Note the processes UID still need to have DAC per‐
89 missions.
90 krb5_host_rcache_t
92 /var/tmp/krb5_0.rcache2
94 /var/cache/krb5rcache(/.*)?
95 /var/tmp/nfs_0
96 /var/tmp/DNS_25
97 /var/tmp/host_0
98 /var/tmp/imap_0
99 /var/tmp/HTTP_23
100 /var/tmp/HTTP_48
101 /var/tmp/ldap_55
102 /var/tmp/ldap_487
103 /var/tmp/ldapmap1_0
104
107 SELinux requires files to have an extended attribute to define the file
108 type.
109 You can see the context of a file using the -Z option to ls
111 Policy governs the access confined processes have to these files.
113 SELinux system_dbusd policy is very flexible allowing users to setup
114 their system_dbusd processes in as secure a method as possible.
115 STANDARD FILE CONTEXT
117 SELinux defines the file context types for the system_dbusd, if you
119 wanted to store files with these types in a diffent paths, you need to
120 execute the semanage command to sepecify alternate labeling and then
121 use restorecon to put the labels on disk.
122 semanage fcontext -a -t system_dbusd_var_run_t '/srv/mysys‐
124 tem_dbusd_content(/.*)?'
125 restorecon -R -v /srv/mysystem_dbusd_content
126 Note: SELinux often uses regular expressions to specify labels that
128 match multiple files.
129 The following file types are defined for system_dbusd:
131 system_dbusd_tmp_t
135 - Set files with the system_dbusd_tmp_t type, if you want to store sys‐
137 tem dbusd temporary files in the /tmp directories.
138 system_dbusd_tmpfs_t
142 - Set files with the system_dbusd_tmpfs_t type, if you want to store
144 system dbusd files on a tmpfs file system.
145 system_dbusd_var_lib_t
149 - Set files with the system_dbusd_var_lib_t type, if you want to store
151 the system dbusd files under the /var/lib directory.
152 Paths:
155 /var/lib/dbus(/.*)?, /var/cache/ibus(/.*)?
156 system_dbusd_var_run_t
159 - Set files with the system_dbusd_var_run_t type, if you want to store
161 the system dbusd files under the /run or /var/run directory.
162 Paths:
165 /var/run/dbus(/.*)?, /var/named/chroot/var/run/dbus(/.*)?
166 Note: File context can be temporarily modified with the chcon command.
169 If you want to permanently change the file context you need to use the
170 semanage fcontext command. This will modify the SELinux labeling data‐
171 base. You will need to use restorecon to apply the labels.
172
175 semanage fcontext can also be used to manipulate default file context
176 mappings.
177 semanage permissive can also be used to manipulate whether or not a
179 process type is permissive.
180 semanage module can also be used to enable/disable/install/remove pol‐
182 icy modules.
183 semanage boolean can also be used to manipulate the booleans
185 system-config-selinux is a GUI tool available to customize SELinux pol‐
188 icy settings.
189
192 This manual page was auto-generated using sepolicy manpage .
193
196 selinux(8), system_dbusd(8), semanage(8), restorecon(8), chcon(1), se‐
197 policy(8), setsebool(8)
198system_dbusd 21-06-09 system_dbusd_selinux(8)