1dnsmasq_selinux(8) SELinux Policy dnsmasq dnsmasq_selinux(8)
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6 dnsmasq_selinux - Security Enhanced Linux Policy for the dnsmasq pro‐
7 cesses
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10 Security-Enhanced Linux secures the dnsmasq processes via flexible
11 mandatory access control.
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13 The dnsmasq processes execute with the dnsmasq_t SELinux type. You can
14 check if you have these processes running by executing the ps command
15 with the -Z qualifier.
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17 For example:
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19 ps -eZ | grep dnsmasq_t
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24 The dnsmasq_t SELinux type can be entered via the dnsmasq_exec_t file
25 type.
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27 The default entrypoint paths for the dnsmasq_t domain are the follow‐
28 ing:
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30 /usr/sbin/dnsmasq
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33 SELinux defines process types (domains) for each process running on the
34 system
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36 You can see the context of a process using the -Z option to ps
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38 Policy governs the access confined processes have to files. SELinux
39 dnsmasq policy is very flexible allowing users to setup their dnsmasq
40 processes in as secure a method as possible.
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42 The following process types are defined for dnsmasq:
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44 dnsmasq_t
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46 Note: semanage permissive -a dnsmasq_t can be used to make the process
47 type dnsmasq_t permissive. SELinux does not deny access to permissive
48 process types, but the AVC (SELinux denials) messages are still gener‐
49 ated.
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53 SELinux policy is customizable based on least access required. dnsmasq
54 policy is extremely flexible and has several booleans that allow you to
55 manipulate the policy and run dnsmasq with the tightest access possi‐
56 ble.
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60 If you want to allow the dnsmasq to creating and using netlink_sockets,
61 you must turn on the dnsmasq_use_ipset boolean. Disabled by default.
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63 setsebool -P dnsmasq_use_ipset 1
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67 If you want to allow all domains to execute in fips_mode, you must turn
68 on the fips_mode boolean. Enabled by default.
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70 setsebool -P fips_mode 1
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75 The SELinux process type dnsmasq_t can manage files labeled with the
76 following file types. The paths listed are the default paths for these
77 file types. Note the processes UID still need to have DAC permissions.
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79 NetworkManager_var_lib_t
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81 /var/lib/wicd(/.*)?
82 /var/lib/NetworkManager(/.*)?
83 /etc/dhcp/wired-settings.conf
84 /etc/wicd/wired-settings.conf
85 /etc/dhcp/manager-settings.conf
86 /etc/wicd/manager-settings.conf
87 /etc/dhcp/wireless-settings.conf
88 /etc/wicd/wireless-settings.conf
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90 NetworkManager_var_run_t
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92 /var/run/teamd(/.*)?
93 /var/run/nm-xl2tpd.conf.*
94 /var/run/nm-dhclient.*
95 /var/run/NetworkManager(/.*)?
96 /var/run/wpa_supplicant(/.*)?
97 /var/run/wicd.pid
98 /var/run/NetworkManager.pid
99 /var/run/nm-dns-dnsmasq.conf
100 /var/run/wpa_supplicant-global
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102 cluster_conf_t
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104 /etc/cluster(/.*)?
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106 cluster_var_lib_t
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108 /var/lib/pcsd(/.*)?
109 /var/lib/cluster(/.*)?
110 /var/lib/openais(/.*)?
111 /var/lib/pengine(/.*)?
112 /var/lib/corosync(/.*)?
113 /usr/lib/heartbeat(/.*)?
114 /var/lib/heartbeat(/.*)?
115 /var/lib/pacemaker(/.*)?
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117 cluster_var_run_t
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119 /var/run/crm(/.*)?
120 /var/run/cman_.*
121 /var/run/rsctmp(/.*)?
122 /var/run/aisexec.*
123 /var/run/heartbeat(/.*)?
124 /var/run/corosync-qnetd(/.*)?
125 /var/run/corosync-qdevice(/.*)?
126 /var/run/corosync.pid
127 /var/run/cpglockd.pid
128 /var/run/rgmanager.pid
129 /var/run/cluster/rgmanager.sk
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131 crond_var_run_t
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133 /var/run/.*cron.*
134 /var/run/crond?.pid
135 /var/run/crond?.reboot
136 /var/run/atd.pid
137 /var/run/fcron.pid
138 /var/run/fcron.fifo
139 /var/run/anacron.pid
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141 dnsmasq_lease_t
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143 /var/lib/dnsmasq(/.*)?
144 /var/lib/misc/dnsmasq.leases
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146 dnsmasq_var_run_t
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148 /var/run/dnsmasq.*
149 /var/run/libvirt/network(/.*)?
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151 mnt_t
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153 /mnt(/[^/]*)?
154 /mnt(/[^/]*)?
155 /rhev(/[^/]*)?
156 /rhev/[^/]*/.*
157 /media(/[^/]*)?
158 /media(/[^/]*)?
159 /media/.hal-.*
160 /var/run/media(/[^/]*)?
161 /afs
162 /net
163 /misc
164 /rhev
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166 neutron_var_lib_t
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168 /var/lib/neutron(/.*)?
169 /var/lib/quantum(/.*)?
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171 root_t
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173 /sysroot/ostree/deploy/.*-atomic/deploy(/.*)?
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175 /initrd
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179 SELinux requires files to have an extended attribute to define the file
180 type.
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182 You can see the context of a file using the -Z option to ls
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184 Policy governs the access confined processes have to these files.
185 SELinux dnsmasq policy is very flexible allowing users to setup their
186 dnsmasq processes in as secure a method as possible.
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188 STANDARD FILE CONTEXT
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190 SELinux defines the file context types for the dnsmasq, if you wanted
191 to store files with these types in a diffent paths, you need to execute
192 the semanage command to sepecify alternate labeling and then use
193 restorecon to put the labels on disk.
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195 semanage fcontext -a -t dnsmasq_tmp_t '/srv/mydnsmasq_content(/.*)?'
196 restorecon -R -v /srv/mydnsmasq_content
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198 Note: SELinux often uses regular expressions to specify labels that
199 match multiple files.
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201 The following file types are defined for dnsmasq:
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205 dnsmasq_etc_t
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207 - Set files with the dnsmasq_etc_t type, if you want to store dnsmasq
208 files in the /etc directories.
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211 Paths:
212 /etc/dnsmasq.d(/.*)?, /etc/dnsmasq.conf
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215 dnsmasq_exec_t
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217 - Set files with the dnsmasq_exec_t type, if you want to transition an
218 executable to the dnsmasq_t domain.
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222 dnsmasq_initrc_exec_t
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224 - Set files with the dnsmasq_initrc_exec_t type, if you want to transi‐
225 tion an executable to the dnsmasq_initrc_t domain.
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229 dnsmasq_lease_t
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231 - Set files with the dnsmasq_lease_t type, if you want to treat the
232 files as dnsmasq lease data.
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235 Paths:
236 /var/lib/dnsmasq(/.*)?, /var/lib/misc/dnsmasq.leases
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239 dnsmasq_tmp_t
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241 - Set files with the dnsmasq_tmp_t type, if you want to store dnsmasq
242 temporary files in the /tmp directories.
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246 dnsmasq_unit_file_t
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248 - Set files with the dnsmasq_unit_file_t type, if you want to treat the
249 files as dnsmasq unit content.
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253 dnsmasq_var_log_t
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255 - Set files with the dnsmasq_var_log_t type, if you want to treat the
256 data as dnsmasq var log data, usually stored under the /var/log direc‐
257 tory.
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261 dnsmasq_var_run_t
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263 - Set files with the dnsmasq_var_run_t type, if you want to store the
264 dnsmasq files under the /run or /var/run directory.
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267 Paths:
268 /var/run/dnsmasq.*, /var/run/libvirt/network(/.*)?
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271 Note: File context can be temporarily modified with the chcon command.
272 If you want to permanently change the file context you need to use the
273 semanage fcontext command. This will modify the SELinux labeling data‐
274 base. You will need to use restorecon to apply the labels.
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278 semanage fcontext can also be used to manipulate default file context
279 mappings.
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281 semanage permissive can also be used to manipulate whether or not a
282 process type is permissive.
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284 semanage module can also be used to enable/disable/install/remove pol‐
285 icy modules.
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287 semanage boolean can also be used to manipulate the booleans
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290 system-config-selinux is a GUI tool available to customize SELinux pol‐
291 icy settings.
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295 This manual page was auto-generated using sepolicy manpage .
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299 selinux(8), dnsmasq(8), semanage(8), restorecon(8), chcon(1), sepol‐
300 icy(8), setsebool(8)
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304dnsmasq 20-05-05 dnsmasq_selinux(8)