1systemd_resolved_selinux(S8E)Linux Policy systemd_resolsvyesdtemd_resolved_selinux(8)
2
6 systemd_resolved_selinux - Security Enhanced Linux Policy for the sys‐
7 temd_resolved processes
8
10 Security-Enhanced Linux secures the systemd_resolved processes via
11 flexible mandatory access control.
12 The systemd_resolved processes execute with the systemd_resolved_t
14 SELinux type. You can check if you have these processes running by exe‐
15 cuting the ps command with the -Z qualifier.
16 For example:
18 ps -eZ | grep systemd_resolved_t
20
24 The systemd_resolved_t SELinux type can be entered via the systemd_re‐
25 solved_exec_t file type.
26 The default entrypoint paths for the systemd_resolved_t domain are the
28 following:
29 /usr/lib/systemd/systemd-resolve(d|-host)
31
33 SELinux defines process types (domains) for each process running on the
34 system
35 You can see the context of a process using the -Z option to ps
37 Policy governs the access confined processes have to files. SELinux
39 systemd_resolved policy is very flexible allowing users to setup their
40 systemd_resolved processes in as secure a method as possible.
41 The following process types are defined for systemd_resolved:
43 systemd_resolved_t
45 Note: semanage permissive -a systemd_resolved_t can be used to make the
47 process type systemd_resolved_t permissive. SELinux does not deny ac‐
48 cess to permissive process types, but the AVC (SELinux denials) mes‐
49 sages are still generated.
50
53 SELinux policy is customizable based on least access required. sys‐
54 temd_resolved policy is extremely flexible and has several booleans
55 that allow you to manipulate the policy and run systemd_resolved with
56 the tightest access possible.
57 If you want to dontaudit all daemons scheduling requests (setsched,
61 sys_nice), you must turn on the daemons_dontaudit_scheduling boolean.
62 Enabled by default.
63 setsebool -P daemons_dontaudit_scheduling 1
65 If you want to allow all domains to execute in fips_mode, you must turn
69 on the fips_mode boolean. Enabled by default.
70 setsebool -P fips_mode 1
72 If you want to allow system to run with NIS, you must turn on the
76 nis_enabled boolean. Disabled by default.
77 setsebool -P nis_enabled 1
79
83 The SELinux process type systemd_resolved_t can manage files labeled
84 with the following file types. The paths listed are the default paths
85 for these file types. Note the processes UID still need to have DAC
86 permissions.
87 cluster_conf_t
89 /etc/cluster(/.*)?
91 cluster_var_lib_t
93 /var/lib/pcsd(/.*)?
95 /var/lib/cluster(/.*)?
96 /var/lib/openais(/.*)?
97 /var/lib/pengine(/.*)?
98 /var/lib/corosync(/.*)?
99 /usr/lib/heartbeat(/.*)?
100 /var/lib/heartbeat(/.*)?
101 /var/lib/pacemaker(/.*)?
102 cluster_var_run_t
104 /var/run/crm(/.*)?
106 /var/run/cman_.*
107 /var/run/rsctmp(/.*)?
108 /var/run/aisexec.*
109 /var/run/heartbeat(/.*)?
110 /var/run/pcsd-ruby.socket
111 /var/run/corosync-qnetd(/.*)?
112 /var/run/corosync-qdevice(/.*)?
113 /var/run/corosync.pid
114 /var/run/cpglockd.pid
115 /var/run/rgmanager.pid
116 /var/run/cluster/rgmanager.sk
117 krb5_host_rcache_t
119 /var/tmp/krb5_0.rcache2
121 /var/cache/krb5rcache(/.*)?
122 /var/tmp/nfs_0
123 /var/tmp/DNS_25
124 /var/tmp/host_0
125 /var/tmp/imap_0
126 /var/tmp/HTTP_23
127 /var/tmp/HTTP_48
128 /var/tmp/ldap_55
129 /var/tmp/ldap_487
130 /var/tmp/ldapmap1_0
131 root_t
133 /sysroot/ostree/deploy/.*-atomic/deploy(/.*)?
135 /
136 /initrd
137 systemd_resolved_var_run_t
139 /var/run/systemd/resolve(/.*)?
141
144 SELinux requires files to have an extended attribute to define the file
145 type.
146 You can see the context of a file using the -Z option to ls
148 Policy governs the access confined processes have to these files.
150 SELinux systemd_resolved policy is very flexible allowing users to
151 setup their systemd_resolved processes in as secure a method as possi‐
152 ble.
153 STANDARD FILE CONTEXT
155 SELinux defines the file context types for the systemd_resolved, if you
157 wanted to store files with these types in a different paths, you need
158 to execute the semanage command to specify alternate labeling and then
159 use restorecon to put the labels on disk.
160 semanage fcontext -a -t systemd_resolved_exec_t '/srv/systemd_re‐
162 solved/content(/.*)?'
163 restorecon -R -v /srv/mysystemd_resolved_content
164 Note: SELinux often uses regular expressions to specify labels that
166 match multiple files.
167 The following file types are defined for systemd_resolved:
169 systemd_resolved_exec_t
173 - Set files with the systemd_resolved_exec_t type, if you want to tran‐
175 sition an executable to the systemd_resolved_t domain.
176 systemd_resolved_unit_file_t
180 - Set files with the systemd_resolved_unit_file_t type, if you want to
182 treat the files as systemd resolved unit content.
183 systemd_resolved_var_run_t
187 - Set files with the systemd_resolved_var_run_t type, if you want to
189 store the systemd resolved files under the /run or /var/run directory.
190 Note: File context can be temporarily modified with the chcon command.
194 If you want to permanently change the file context you need to use the
195 semanage fcontext command. This will modify the SELinux labeling data‐
196 base. You will need to use restorecon to apply the labels.
197
200 semanage fcontext can also be used to manipulate default file context
201 mappings.
202 semanage permissive can also be used to manipulate whether or not a
204 process type is permissive.
205 semanage module can also be used to enable/disable/install/remove pol‐
207 icy modules.
208 semanage boolean can also be used to manipulate the booleans
210 system-config-selinux is a GUI tool available to customize SELinux pol‐
213 icy settings.
214
217 This manual page was auto-generated using sepolicy manpage .
218
221 selinux(8), systemd_resolved(8), semanage(8), restorecon(8), chcon(1),
222 sepolicy(8), setsebool(8)
223systemd_resolved 23-10-20 systemd_resolved_selinux(8)