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/pcsd-ruby.socket
125 /var/run/corosync-qnetd(/.*)?
126 /var/run/corosync-qdevice(/.*)?
127 /var/run/corosync.pid
128 /var/run/cpglockd.pid
129 /var/run/rgmanager.pid
130 /var/run/cluster/rgmanager.sk
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132 crond_var_run_t
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134 /var/run/.*cron.*
135 /var/run/crond?.pid
136 /var/run/crond?.reboot
137 /var/run/atd.pid
138 /var/run/fcron.pid
139 /var/run/fcron.fifo
140 /var/run/anacron.pid
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142 dnsmasq_lease_t
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144 /var/lib/dnsmasq(/.*)?
145 /var/lib/misc/dnsmasq.leases
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147 dnsmasq_tmp_t
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150 dnsmasq_var_run_t
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152 /var/run/dnsmasq.*
153 /var/run/libvirt/network(/.*)?
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155 krb5_host_rcache_t
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157 /var/tmp/krb5_0.rcache2
158 /var/cache/krb5rcache(/.*)?
159 /var/tmp/nfs_0
160 /var/tmp/DNS_25
161 /var/tmp/host_0
162 /var/tmp/imap_0
163 /var/tmp/HTTP_23
164 /var/tmp/HTTP_48
165 /var/tmp/ldap_55
166 /var/tmp/ldap_487
167 /var/tmp/ldapmap1_0
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169 mnt_t
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171 /mnt(/[^/]*)?
172 /mnt(/[^/]*)?
173 /rhev(/[^/]*)?
174 /rhev/[^/]*/.*
175 /media(/[^/]*)?
176 /media(/[^/]*)?
177 /media/.hal-.*
178 /var/run/media(/[^/]*)?
179 /afs
180 /net
181 /misc
182 /rhev
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184 neutron_var_lib_t
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186 /var/lib/neutron(/.*)?
187 /var/lib/quantum(/.*)?
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189 root_t
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191 /sysroot/ostree/deploy/.*-atomic/deploy(/.*)?
192 /
193 /initrd
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197 SELinux requires files to have an extended attribute to define the file
198 type.
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200 You can see the context of a file using the -Z option to ls
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202 Policy governs the access confined processes have to these files.
203 SELinux dnsmasq policy is very flexible allowing users to setup their
204 dnsmasq processes in as secure a method as possible.
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206 STANDARD FILE CONTEXT
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208 SELinux defines the file context types for the dnsmasq, if you wanted
209 to store files with these types in a diffent paths, you need to execute
210 the semanage command to specify alternate labeling and then use re‐
211 storecon to put the labels on disk.
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213 semanage fcontext -a -t dnsmasq_tmp_t '/srv/mydnsmasq_content(/.*)?'
214 restorecon -R -v /srv/mydnsmasq_content
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216 Note: SELinux often uses regular expressions to specify labels that
217 match multiple files.
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219 The following file types are defined for dnsmasq:
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223 dnsmasq_etc_t
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225 - Set files with the dnsmasq_etc_t type, if you want to store dnsmasq
226 files in the /etc directories.
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229 Paths:
230 /etc/dnsmasq.d(/.*)?, /etc/dnsmasq.conf
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233 dnsmasq_exec_t
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235 - Set files with the dnsmasq_exec_t type, if you want to transition an
236 executable to the dnsmasq_t domain.
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240 dnsmasq_initrc_exec_t
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242 - Set files with the dnsmasq_initrc_exec_t type, if you want to transi‐
243 tion an executable to the dnsmasq_initrc_t domain.
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247 dnsmasq_lease_t
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249 - Set files with the dnsmasq_lease_t type, if you want to treat the
250 files as dnsmasq lease data.
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253 Paths:
254 /var/lib/dnsmasq(/.*)?, /var/lib/misc/dnsmasq.leases
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257 dnsmasq_tmp_t
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259 - Set files with the dnsmasq_tmp_t type, if you want to store dnsmasq
260 temporary files in the /tmp directories.
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264 dnsmasq_unit_file_t
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266 - Set files with the dnsmasq_unit_file_t type, if you want to treat the
267 files as dnsmasq unit content.
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271 dnsmasq_var_log_t
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273 - Set files with the dnsmasq_var_log_t type, if you want to treat the
274 data as dnsmasq var log data, usually stored under the /var/log direc‐
275 tory.
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279 dnsmasq_var_run_t
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281 - Set files with the dnsmasq_var_run_t type, if you want to store the
282 dnsmasq files under the /run or /var/run directory.
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285 Paths:
286 /var/run/dnsmasq.*, /var/run/libvirt/network(/.*)?
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289 Note: File context can be temporarily modified with the chcon command.
290 If you want to permanently change the file context you need to use the
291 semanage fcontext command. This will modify the SELinux labeling data‐
292 base. You will need to use restorecon to apply the labels.
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296 semanage fcontext can also be used to manipulate default file context
297 mappings.
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299 semanage permissive can also be used to manipulate whether or not a
300 process type is permissive.
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302 semanage module can also be used to enable/disable/install/remove pol‐
303 icy modules.
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305 semanage boolean can also be used to manipulate the booleans
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308 system-config-selinux is a GUI tool available to customize SELinux pol‐
309 icy settings.
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313 This manual page was auto-generated using sepolicy manpage .
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317 selinux(8), dnsmasq(8), semanage(8), restorecon(8), chcon(1), sepol‐
318 icy(8), setsebool(8)
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322dnsmasq 21-11-19 dnsmasq_selinux(8)