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
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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 allow users to resolve user passwd entries directly from
65 ldap rather then using a sssd server, you must turn on the authlo‐
66 gin_nsswitch_use_ldap boolean. Disabled by default.
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68 setsebool -P authlogin_nsswitch_use_ldap 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 confined applications to run with kerberos, you
80 must turn on the kerberos_enabled boolean. Enabled by default.
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82 setsebool -P kerberos_enabled 1
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86 If you want to allow system to run with NIS, you must turn on the
87 nis_enabled boolean. Disabled by default.
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89 setsebool -P nis_enabled 1
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93 If you want to allow confined applications to use nscd shared memory,
94 you must turn on the nscd_use_shm boolean. Disabled by default.
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96 setsebool -P nscd_use_shm 1
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101 The SELinux process type pdns_t can manage files labeled with the fol‐
102 lowing file types. The paths listed are the default paths for these
103 file types. Note the processes UID still need to have DAC permissions.
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105 cluster_conf_t
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107 /etc/cluster(/.*)?
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109 cluster_var_lib_t
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111 /var/lib/pcsd(/.*)?
112 /var/lib/cluster(/.*)?
113 /var/lib/openais(/.*)?
114 /var/lib/pengine(/.*)?
115 /var/lib/corosync(/.*)?
116 /usr/lib/heartbeat(/.*)?
117 /var/lib/heartbeat(/.*)?
118 /var/lib/pacemaker(/.*)?
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120 cluster_var_run_t
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122 /var/run/crm(/.*)?
123 /var/run/cman_.*
124 /var/run/rsctmp(/.*)?
125 /var/run/aisexec.*
126 /var/run/heartbeat(/.*)?
127 /var/run/corosync-qnetd(/.*)?
128 /var/run/corosync-qdevice(/.*)?
129 /var/run/corosync.pid
130 /var/run/cpglockd.pid
131 /var/run/rgmanager.pid
132 /var/run/cluster/rgmanager.sk
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134 pdns_var_run_t
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136 /var/run/pdns.pid
137 /var/run/pdns.controlsocket
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139 root_t
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141 /sysroot/ostree/deploy/.*-atomic/deploy(/.*)?
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143 /initrd
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147 SELinux requires files to have an extended attribute to define the file
148 type.
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150 You can see the context of a file using the -Z option to ls
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152 Policy governs the access confined processes have to these files.
153 SELinux pdns policy is very flexible allowing users to setup their pdns
154 processes in as secure a method as possible.
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156 STANDARD FILE CONTEXT
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158 SELinux defines the file context types for the pdns, if you wanted to
159 store files with these types in a diffent paths, you need to execute
160 the semanage command to sepecify alternate labeling and then use
161 restorecon to put the labels on disk.
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163 semanage fcontext -a -t pdns_var_run_t '/srv/mypdns_content(/.*)?'
164 restorecon -R -v /srv/mypdns_content
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166 Note: SELinux often uses regular expressions to specify labels that
167 match multiple files.
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169 The following file types are defined for pdns:
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173 pdns_conf_t
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175 - Set files with the pdns_conf_t type, if you want to treat the files
176 as pdns configuration data, usually stored under the /etc directory.
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180 pdns_control_exec_t
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182 - Set files with the pdns_control_exec_t type, if you want to transi‐
183 tion an executable to the pdns_control_t domain.
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187 pdns_exec_t
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189 - Set files with the pdns_exec_t type, if you want to transition an
190 executable to the pdns_t domain.
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194 pdns_unit_file_t
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196 - Set files with the pdns_unit_file_t type, if you want to treat the
197 files as pdns unit content.
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201 pdns_var_run_t
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203 - Set files with the pdns_var_run_t type, if you want to store the pdns
204 files under the /run or /var/run directory.
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207 Paths:
208 /var/run/pdns.pid, /var/run/pdns.controlsocket
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211 Note: File context can be temporarily modified with the chcon command.
212 If you want to permanently change the file context you need to use the
213 semanage fcontext command. This will modify the SELinux labeling data‐
214 base. You will need to use restorecon to apply the labels.
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218 semanage fcontext can also be used to manipulate default file context
219 mappings.
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221 semanage permissive can also be used to manipulate whether or not a
222 process type is permissive.
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224 semanage module can also be used to enable/disable/install/remove pol‐
225 icy modules.
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227 semanage boolean can also be used to manipulate the booleans
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230 system-config-selinux is a GUI tool available to customize SELinux pol‐
231 icy settings.
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235 This manual page was auto-generated using sepolicy manpage .
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239 selinux(8), pdns(8), semanage(8), restorecon(8), chcon(1), sepolicy(8),
240 setsebool(8), pdns_control_selinux(8), pdns_control_selinux(8)
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244pdns 19-06-18 pdns_selinux(8)