1mysqld_selinux(8) SELinux Policy mysqld mysqld_selinux(8)
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6 mysqld_selinux - Security Enhanced Linux Policy for the mysqld pro‐
7 cesses
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10 Security-Enhanced Linux secures the mysqld processes via flexible
11 mandatory access control.
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13 The mysqld processes execute with the mysqld_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 mysqld_t
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24 The mysqld_t SELinux type can be entered via the mysqld_exec_t file
25 type.
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27 The default entrypoint paths for the mysqld_t domain are the following:
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29 /usr/sbin/mysqld(-max|-debug)?, /usr/sbin/ndbd, /usr/libexec/mysqld,
30 /usr/libexec/mariadbd, /usr/bin/mysql_upgrade, /usr/bin/mariadb-up‐
31 grade, /usr/bin/mysqld_safe_helper, /usr/bin/mariadbd-safe-helper
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34 SELinux defines process types (domains) for each process running on the
35 system
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37 You can see the context of a process using the -Z option to ps
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39 Policy governs the access confined processes have to files. SELinux
40 mysqld policy is very flexible allowing users to setup their mysqld
41 processes in as secure a method as possible.
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43 The following process types are defined for mysqld:
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45 mysqld_t, mysqld_safe_t
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47 Note: semanage permissive -a mysqld_t can be used to make the process
48 type mysqld_t permissive. SELinux does not deny access to permissive
49 process types, but the AVC (SELinux denials) messages are still gener‐
50 ated.
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54 SELinux policy is customizable based on least access required. mysqld
55 policy is extremely flexible and has several booleans that allow you to
56 manipulate the policy and run mysqld with the tightest access possible.
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60 If you want to allow mysqld to connect to all ports, you must turn on
61 the mysql_connect_any boolean. Disabled by default.
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63 setsebool -P mysql_connect_any 1
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67 If you want to allow mysqld to connect to http port, you must turn on
68 the mysql_connect_http boolean. Disabled by default.
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70 setsebool -P mysql_connect_http 1
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74 If you want to determine whether exim can connect to databases, you
75 must turn on the exim_can_connect_db boolean. Disabled by default.
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77 setsebool -P exim_can_connect_db 1
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81 If you want to allow all domains to execute in fips_mode, you must turn
82 on the fips_mode boolean. Enabled by default.
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84 setsebool -P fips_mode 1
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88 If you want to determine whether ftpd can connect to databases over the
89 TCP network, you must turn on the ftpd_connect_db boolean. Disabled by
90 default.
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92 setsebool -P ftpd_connect_db 1
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96 If you want to allow HTTPD scripts and modules to connect to databases
97 over the network, you must turn on the httpd_can_network_connect_db
98 boolean. Disabled by default.
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100 setsebool -P httpd_can_network_connect_db 1
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104 If you want to allow confined applications to run with kerberos, you
105 must turn on the kerberos_enabled boolean. Enabled by default.
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107 setsebool -P kerberos_enabled 1
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111 If you want to allow system to run with NIS, you must turn on the
112 nis_enabled boolean. Disabled by default.
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114 setsebool -P nis_enabled 1
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116
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118 If you want to allow PowerDNS to connect to databases over the network,
119 you must turn on the pdns_can_network_connect_db boolean. Disabled by
120 default.
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122 setsebool -P pdns_can_network_connect_db 1
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127 SELinux defines port types to represent TCP and UDP ports.
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129 You can see the types associated with a port by using the following
130 command:
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132 semanage port -l
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135 Policy governs the access confined processes have to these ports.
136 SELinux mysqld policy is very flexible allowing users to setup their
137 mysqld processes in as secure a method as possible.
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139 The following port types are defined for mysqld:
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142 mysqld_port_t
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146 Default Defined Ports:
147 tcp 1186,3306,63132-63164
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150 The SELinux process type mysqld_t can manage files labeled with the
151 following file types. The paths listed are the default paths for these
152 file types. Note the processes UID still need to have DAC permissions.
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154 cluster_conf_t
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156 /etc/cluster(/.*)?
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158 cluster_var_lib_t
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160 /var/lib/pcsd(/.*)?
161 /var/lib/cluster(/.*)?
162 /var/lib/openais(/.*)?
163 /var/lib/pengine(/.*)?
164 /var/lib/corosync(/.*)?
165 /usr/lib/heartbeat(/.*)?
166 /var/lib/heartbeat(/.*)?
167 /var/lib/pacemaker(/.*)?
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169 cluster_var_run_t
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171 /var/run/crm(/.*)?
172 /var/run/cman_.*
173 /var/run/rsctmp(/.*)?
174 /var/run/aisexec.*
175 /var/run/heartbeat(/.*)?
176 /var/run/pcsd-ruby.socket
177 /var/run/corosync-qnetd(/.*)?
178 /var/run/corosync-qdevice(/.*)?
179 /var/run/corosync.pid
180 /var/run/cpglockd.pid
181 /var/run/rgmanager.pid
182 /var/run/cluster/rgmanager.sk
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184 faillog_t
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186 /var/log/btmp.*
187 /var/log/faillog.*
188 /var/log/tallylog.*
189 /var/run/faillock(/.*)?
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191 hugetlbfs_t
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193 /dev/hugepages
194 /usr/lib/udev/devices/hugepages
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196 krb5_host_rcache_t
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198 /var/tmp/krb5_0.rcache2
199 /var/cache/krb5rcache(/.*)?
200 /var/tmp/nfs_0
201 /var/tmp/DNS_25
202 /var/tmp/host_0
203 /var/tmp/imap_0
204 /var/tmp/HTTP_23
205 /var/tmp/HTTP_48
206 /var/tmp/ldap_55
207 /var/tmp/ldap_487
208 /var/tmp/ldapmap1_0
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210 lastlog_t
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212 /var/log/lastlog.*
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214 mysqld_db_t
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216 /var/lib/mysql(-files|-keyring)?(/.*)?
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218 mysqld_log_t
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220 /var/log/mysql.*
221 /var/log/mysql(/.*)?
222 /var/log/mariadb(/.*)?
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224 mysqld_tmp_t
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227 mysqld_var_run_t
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229 /var/run/mysql(/.*)?
230 /var/run/mysqld(/.*)?
231 /var/run/mariadb(/.*)?
232 /var/lib/mysql/mysql.sock
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234 root_t
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236 /sysroot/ostree/deploy/.*-atomic/deploy(/.*)?
237 /
238 /initrd
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240 security_t
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242 /selinux
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246 SELinux requires files to have an extended attribute to define the file
247 type.
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249 You can see the context of a file using the -Z option to ls
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251 Policy governs the access confined processes have to these files.
252 SELinux mysqld policy is very flexible allowing users to setup their
253 mysqld processes in as secure a method as possible.
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255 EQUIVALENCE DIRECTORIES
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258 mysqld policy stores data with multiple different file context types
259 under the /var/log/mysql directory. If you would like to store the
260 data in a different directory you can use the semanage command to cre‐
261 ate an equivalence mapping. If you wanted to store this data under the
262 /srv directory you would execute the following command:
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264 semanage fcontext -a -e /var/log/mysql /srv/mysql
265 restorecon -R -v /srv/mysql
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267 mysqld policy stores data with multiple different file context types
268 under the /var/run/mysql directory. If you would like to store the
269 data in a different directory you can use the semanage command to cre‐
270 ate an equivalence mapping. If you wanted to store this data under the
271 /srv directory you would execute the following command:
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273 semanage fcontext -a -e /var/run/mysql /srv/mysql
274 restorecon -R -v /srv/mysql
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276 STANDARD FILE CONTEXT
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278 SELinux defines the file context types for the mysqld, if you wanted to
279 store files with these types in a diffent paths, you need to execute
280 the semanage command to specify alternate labeling and then use re‐
281 storecon to put the labels on disk.
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283 semanage fcontext -a -t mysqld_tmp_t '/srv/mymysqld_content(/.*)?'
284 restorecon -R -v /srv/mymysqld_content
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286 Note: SELinux often uses regular expressions to specify labels that
287 match multiple files.
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289 The following file types are defined for mysqld:
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293 mysqld_db_t
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295 - Set files with the mysqld_db_t type, if you want to treat the files
296 as mysqld database content.
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300 mysqld_etc_t
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302 - Set files with the mysqld_etc_t type, if you want to store mysqld
303 files in the /etc directories.
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306 Paths:
307 /etc/mysql(/.*)?, /etc/my.cnf.d(/.*)?, /etc/my.cnf
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310 mysqld_exec_t
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312 - Set files with the mysqld_exec_t type, if you want to transition an
313 executable to the mysqld_t domain.
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316 Paths:
317 /usr/sbin/mysqld(-max|-debug)?, /usr/sbin/ndbd,
318 /usr/libexec/mysqld, /usr/libexec/mariadbd, /usr/bin/mysql_up‐
319 grade, /usr/bin/mariadb-upgrade, /usr/bin/mysqld_safe_helper,
320 /usr/bin/mariadbd-safe-helper
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323 mysqld_home_t
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325 - Set files with the mysqld_home_t type, if you want to store mysqld
326 files in the users home directory.
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329 Paths:
330 /root/.my.cnf, /home/[^/]+/.my.cnf
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333 mysqld_initrc_exec_t
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335 - Set files with the mysqld_initrc_exec_t type, if you want to transi‐
336 tion an executable to the mysqld_initrc_t domain.
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340 mysqld_log_t
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342 - Set files with the mysqld_log_t type, if you want to treat the data
343 as mysqld log data, usually stored under the /var/log directory.
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346 Paths:
347 /var/log/mysql.*, /var/log/mysql(/.*)?, /var/log/mariadb(/.*)?
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350 mysqld_safe_exec_t
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352 - Set files with the mysqld_safe_exec_t type, if you want to transition
353 an executable to the mysqld_safe_t domain.
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356 Paths:
357 /usr/bin/mysqld_safe, /usr/bin/mariadbd-safe,
358 /usr/libexec/mysqld_safe-scl-helper
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361 mysqld_tmp_t
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363 - Set files with the mysqld_tmp_t type, if you want to store mysqld
364 temporary files in the /tmp directories.
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368 mysqld_unit_file_t
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370 - Set files with the mysqld_unit_file_t type, if you want to treat the
371 files as mysqld unit content.
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374 Paths:
375 /usr/lib/systemd/system/mysqld.*, /usr/lib/systemd/system/mari‐
376 adb.*
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379 mysqld_var_run_t
380
381 - Set files with the mysqld_var_run_t type, if you want to store the
382 mysqld files under the /run or /var/run directory.
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385 Paths:
386 /var/run/mysql(/.*)?, /var/run/mysqld(/.*)?, /var/run/mari‐
387 adb(/.*)?, /var/lib/mysql/mysql.sock
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389
390 Note: File context can be temporarily modified with the chcon command.
391 If you want to permanently change the file context you need to use the
392 semanage fcontext command. This will modify the SELinux labeling data‐
393 base. You will need to use restorecon to apply the labels.
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397 semanage fcontext can also be used to manipulate default file context
398 mappings.
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400 semanage permissive can also be used to manipulate whether or not a
401 process type is permissive.
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403 semanage module can also be used to enable/disable/install/remove pol‐
404 icy modules.
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406 semanage port can also be used to manipulate the port definitions
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408 semanage boolean can also be used to manipulate the booleans
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411 system-config-selinux is a GUI tool available to customize SELinux pol‐
412 icy settings.
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416 This manual page was auto-generated using sepolicy manpage .
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420 selinux(8), mysqld(8), semanage(8), restorecon(8), chcon(1), sepol‐
421 icy(8), setsebool(8), mysqld_safe_selinux(8)
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425mysqld 21-11-19 mysqld_selinux(8)