1pdns_selinux(8) SELinux Policy pdns pdns_selinux(8)
2
6 pdns_selinux - Security Enhanced Linux Policy for the pdns processes
7
9 Security-Enhanced Linux secures the pdns processes via flexible manda‐
10 tory access control.
11 The pdns processes execute with the pdns_t SELinux type. You can check
13 if you have these processes running by executing the ps command with
14 the -Z qualifier.
15 For example:
17 ps -eZ | grep pdns_t
19
23 The pdns_t SELinux type can be entered via the pdns_exec_t file type.
24 The default entrypoint paths for the pdns_t domain are the following:
26 /usr/sbin/pdns_server
28
30 SELinux defines process types (domains) for each process running on the
31 system
32 You can see the context of a process using the -Z option to ps
34 Policy governs the access confined processes have to files. SELinux
36 pdns policy is very flexible allowing users to setup their pdns pro‐
37 cesses in as secure a method as possible.
38 The following process types are defined for pdns:
40 pdns_t, pdns_control_t
42 Note: semanage permissive -a pdns_t can be used to make the process
44 type pdns_t permissive. SELinux does not deny access to permissive
45 process types, but the AVC (SELinux denials) messages are still gener‐
46 ated.
47
50 SELinux policy is customizable based on least access required. pdns
51 policy is extremely flexible and has several booleans that allow you to
52 manipulate the policy and run pdns with the tightest access possible.
53 If you want to allow PowerDNS to connect to databases over the network,
57 you must turn on the pdns_can_network_connect_db boolean. Disabled by
58 default.
59 setsebool -P pdns_can_network_connect_db 1
61 If you want to allow all domains to execute in fips_mode, you must turn
65 on the fips_mode boolean. Enabled by default.
66 setsebool -P fips_mode 1
68
72 The SELinux process type pdns_t can manage files labeled with the fol‐
73 lowing file types. The paths listed are the default paths for these
74 file types. Note the processes UID still need to have DAC permissions.
75 cluster_conf_t
77 /etc/cluster(/.*)?
79 cluster_var_lib_t
81 /var/lib/pcsd(/.*)?
83 /var/lib/cluster(/.*)?
84 /var/lib/openais(/.*)?
85 /var/lib/pengine(/.*)?
86 /var/lib/corosync(/.*)?
87 /usr/lib/heartbeat(/.*)?
88 /var/lib/heartbeat(/.*)?
89 /var/lib/pacemaker(/.*)?
90 cluster_var_run_t
92 /var/run/crm(/.*)?
94 /var/run/cman_.*
95 /var/run/rsctmp(/.*)?
96 /var/run/aisexec.*
97 /var/run/heartbeat(/.*)?
98 /var/run/corosync-qnetd(/.*)?
99 /var/run/corosync-qdevice(/.*)?
100 /var/run/corosync.pid
101 /var/run/cpglockd.pid
102 /var/run/rgmanager.pid
103 /var/run/cluster/rgmanager.sk
104 pdns_var_lib_t
106 /var/lib/pdns(/.*)?
108 pdns_var_run_t
110 /var/run/pdns.pid
112 /var/run/pdns.controlsocket
113 root_t
115 /sysroot/ostree/deploy/.*-atomic/deploy(/.*)?
117 /
118 /initrd
119
122 SELinux requires files to have an extended attribute to define the file
123 type.
124 You can see the context of a file using the -Z option to ls
126 Policy governs the access confined processes have to these files.
128 SELinux pdns policy is very flexible allowing users to setup their pdns
129 processes in as secure a method as possible.
130 STANDARD FILE CONTEXT
132 SELinux defines the file context types for the pdns, if you wanted to
134 store files with these types in a diffent paths, you need to execute
135 the semanage command to sepecify alternate labeling and then use
136 restorecon to put the labels on disk.
137 semanage fcontext -a -t pdns_var_run_t '/srv/mypdns_content(/.*)?'
139 restorecon -R -v /srv/mypdns_content
140 Note: SELinux often uses regular expressions to specify labels that
142 match multiple files.
143 The following file types are defined for pdns:
145 pdns_conf_t
149 - Set files with the pdns_conf_t type, if you want to treat the files
151 as pdns configuration data, usually stored under the /etc directory.
152 pdns_control_exec_t
156 - Set files with the pdns_control_exec_t type, if you want to transi‐
158 tion an executable to the pdns_control_t domain.
159 pdns_exec_t
163 - Set files with the pdns_exec_t type, if you want to transition an
165 executable to the pdns_t domain.
166 pdns_unit_file_t
170 - Set files with the pdns_unit_file_t type, if you want to treat the
172 files as pdns unit content.
173 pdns_var_lib_t
177 - Set files with the pdns_var_lib_t type, if you want to store the pdns
179 files under the /var/lib directory.
180 pdns_var_run_t
184 - Set files with the pdns_var_run_t type, if you want to store the pdns
186 files under the /run or /var/run directory.
187 Paths:
190 /var/run/pdns.pid, /var/run/pdns.controlsocket
191 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), pdns(8), semanage(8), restorecon(8), chcon(1), sepolicy(8),
222 setsebool(8), pdns_control_selinux(8), pdns_control_selinux(8)
223pdns 20-05-05 pdns_selinux(8)