1pdns_selinux(8) SELinux Policy pdns pdns_selinux(8)
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6 pdns_selinux - Security Enhanced Linux Policy for the pdns processes
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9 Security-Enhanced Linux secures the pdns processes via flexible manda‐
10 tory access control.
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12 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.
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16 For example:
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18 ps -eZ | grep pdns_t
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23 The pdns_t SELinux type can be entered via the pdns_exec_t file type.
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25 The default entrypoint paths for the pdns_t domain are the following:
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27 /usr/sbin/pdns_server
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30 SELinux defines process types (domains) for each process running on the
31 system
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33 You can see the context of a process using the -Z option to ps
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35 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.
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39 The following process types are defined for pdns:
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41 pdns_t, pdns_control_t
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43 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.
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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.
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56 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.
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60 setsebool -P pdns_can_network_connect_db 1
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64 If you want to dontaudit all daemons scheduling requests (setsched,
65 sys_nice), you must turn on the daemons_dontaudit_scheduling boolean.
66 Enabled by default.
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68 setsebool -P daemons_dontaudit_scheduling 1
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72 If you want to allow all domains to execute in fips_mode, you must turn
73 on the fips_mode boolean. Enabled by default.
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75 setsebool -P fips_mode 1
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79 If you want to allow system to run with NIS, you must turn on the
80 nis_enabled boolean. Disabled by default.
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82 setsebool -P nis_enabled 1
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87 The SELinux process type pdns_t can manage files labeled with the fol‐
88 lowing file types. The paths listed are the default paths for these
89 file types. Note the processes UID still need to have DAC permissions.
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91 cluster_conf_t
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93 /etc/cluster(/.*)?
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95 cluster_var_lib_t
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97 /var/lib/pcsd(/.*)?
98 /var/lib/cluster(/.*)?
99 /var/lib/openais(/.*)?
100 /var/lib/pengine(/.*)?
101 /var/lib/corosync(/.*)?
102 /usr/lib/heartbeat(/.*)?
103 /var/lib/heartbeat(/.*)?
104 /var/lib/pacemaker(/.*)?
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106 cluster_var_run_t
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108 /var/run/crm(/.*)?
109 /var/run/cman_.*
110 /var/run/rsctmp(/.*)?
111 /var/run/aisexec.*
112 /var/run/heartbeat(/.*)?
113 /var/run/pcsd-ruby.socket
114 /var/run/corosync-qnetd(/.*)?
115 /var/run/corosync-qdevice(/.*)?
116 /var/run/corosync.pid
117 /var/run/cpglockd.pid
118 /var/run/rgmanager.pid
119 /var/run/cluster/rgmanager.sk
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121 krb5_host_rcache_t
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123 /var/tmp/krb5_0.rcache2
124 /var/cache/krb5rcache(/.*)?
125 /var/tmp/nfs_0
126 /var/tmp/DNS_25
127 /var/tmp/host_0
128 /var/tmp/imap_0
129 /var/tmp/HTTP_23
130 /var/tmp/HTTP_48
131 /var/tmp/ldap_55
132 /var/tmp/ldap_487
133 /var/tmp/ldapmap1_0
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135 pdns_var_lib_t
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137 /var/lib/pdns(/.*)?
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139 pdns_var_run_t
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141 /var/run/pdns.pid
142 /var/run/pdns.controlsocket
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144 root_t
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146 /sysroot/ostree/deploy/.*-atomic/deploy(/.*)?
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148 /initrd
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152 SELinux requires files to have an extended attribute to define the file
153 type.
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155 You can see the context of a file using the -Z option to ls
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157 Policy governs the access confined processes have to these files.
158 SELinux pdns policy is very flexible allowing users to setup their pdns
159 processes in as secure a method as possible.
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161 STANDARD FILE CONTEXT
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163 SELinux defines the file context types for the pdns, if you wanted to
164 store files with these types in a different paths, you need to execute
165 the semanage command to specify alternate labeling and then use re‐
166 storecon to put the labels on disk.
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168 semanage fcontext -a -t pdns_exec_t '/srv/pdns/content(/.*)?'
169 restorecon -R -v /srv/mypdns_content
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171 Note: SELinux often uses regular expressions to specify labels that
172 match multiple files.
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174 The following file types are defined for pdns:
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178 pdns_conf_t
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180 - Set files with the pdns_conf_t type, if you want to treat the files
181 as pdns configuration data, usually stored under the /etc directory.
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185 pdns_control_exec_t
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187 - Set files with the pdns_control_exec_t type, if you want to transi‐
188 tion an executable to the pdns_control_t domain.
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192 pdns_exec_t
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194 - Set files with the pdns_exec_t type, if you want to transition an ex‐
195 ecutable to the pdns_t domain.
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199 pdns_unit_file_t
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201 - Set files with the pdns_unit_file_t type, if you want to treat the
202 files as pdns unit content.
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206 pdns_var_lib_t
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208 - Set files with the pdns_var_lib_t type, if you want to store the pdns
209 files under the /var/lib directory.
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213 pdns_var_run_t
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215 - Set files with the pdns_var_run_t type, if you want to store the pdns
216 files under the /run or /var/run directory.
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219 Paths:
220 /var/run/pdns.pid, /var/run/pdns.controlsocket
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223 Note: File context can be temporarily modified with the chcon command.
224 If you want to permanently change the file context you need to use the
225 semanage fcontext command. This will modify the SELinux labeling data‐
226 base. You will need to use restorecon to apply the labels.
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230 semanage fcontext can also be used to manipulate default file context
231 mappings.
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233 semanage permissive can also be used to manipulate whether or not a
234 process type is permissive.
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236 semanage module can also be used to enable/disable/install/remove pol‐
237 icy modules.
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239 semanage boolean can also be used to manipulate the booleans
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242 system-config-selinux is a GUI tool available to customize SELinux pol‐
243 icy settings.
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247 This manual page was auto-generated using sepolicy manpage .
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251 selinux(8), pdns(8), semanage(8), restorecon(8), chcon(1), sepolicy(8),
252 setsebool(8), pdns_control_selinux(8), pdns_control_selinux(8)
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256pdns 23-10-20 pdns_selinux(8)