mysqld_selinux(8)					       SELinux Policy mysqld						 mysqld_selinux(8)

NAME

       mysqld_selinux - Security Enhanced Linux Policy for the mysqld processes

DESCRIPTION

       Security-Enhanced Linux secures the mysqld processes via flexible mandatory access control.

       The  mysqld processes execute with the mysqld_t SELinux type. You can check if you have these processes running by executing the ps command
       with the -Z qualifier.

       For example:

       ps -eZ | grep mysqld_t

ENTRYPOINTS

       The mysqld_t SELinux type can be entered via the mysqld_exec_t file type.

       The default entrypoint paths for the mysqld_t domain are the following:

       /usr/sbin/mysqld(-max)?, /usr/sbin/ndbd, /usr/libexec/mysqld, /usr/bin/mysql_upgrade

PROCESS TYPES

       SELinux defines process types (domains) for each process running on the system

       You can see the context of a process using the -Z option to ps

       Policy governs the access confined processes have to files.  SELinux mysqld policy is very flexible allowing users to  setup  their  mysqld
       processes in as secure a method as possible.

       The following process types are defined for mysqld:

       mysqld_safe_t, mysqld_t

       Note:  semanage permissive -a mysqld_t can be used to make the process type mysqld_t permissive. SELinux does not deny access to permissive
       process types, but the AVC (SELinux denials) messages are still generated.

BOOLEANS

       SELinux policy is customizable based on least access required.  mysqld policy is extremely flexible and has several booleans that allow you
       to manipulate the policy and run mysqld with the tightest access possible.

       If you want to allow mysqld to connect to all ports, you must turn on the mysql_connect_any boolean. Disabled by default.

       setsebool -P mysql_connect_any 1

       If  you want to allow users to resolve user passwd entries directly from ldap rather then using a sssd server, you must turn on the authlo-
       gin_nsswitch_use_ldap boolean. Disabled by default.

       setsebool -P authlogin_nsswitch_use_ldap 1

       If you want to allow all daemons to write corefiles to /, you must turn on the daemons_dump_core boolean. Disabled by default.

       setsebool -P daemons_dump_core 1

       If you want to enable cluster mode for daemons, you must turn on the daemons_enable_cluster_mode boolean. Enabled by default.

       setsebool -P daemons_enable_cluster_mode 1

       If you want to allow all daemons to use tcp wrappers, you must turn on the daemons_use_tcp_wrapper boolean. Disabled by default.

       setsebool -P daemons_use_tcp_wrapper 1

       If you want to allow all daemons the ability to read/write terminals, you must turn on the daemons_use_tty boolean. Disabled by default.

       setsebool -P daemons_use_tty 1

       If you want to deny any process from ptracing or debugging any other processes, you must  turn  on  the	deny_ptrace  boolean.  Enabled	by
       default.

       setsebool -P deny_ptrace 1

       If you want to allow all domains to use other domains file descriptors, you must turn on the domain_fd_use boolean. Enabled by default.

       setsebool -P domain_fd_use 1

       If  you	want  to  allow  all domains to have the kernel load modules, you must turn on the domain_kernel_load_modules boolean. Disabled by
       default.

       setsebool -P domain_kernel_load_modules 1

       If you want to determine whether exim can connect to databases, you must turn on the exim_can_connect_db boolean. Disabled by default.

       setsebool -P exim_can_connect_db 1

       If you want to allow all domains to execute in fips_mode, you must turn on the fips_mode boolean. Enabled by default.

       setsebool -P fips_mode 1

       If you want to determine whether ftpd can connect to databases over the TCP network, you must turn on the ftpd_connect_db boolean. Disabled
       by default.

       setsebool -P ftpd_connect_db 1

       If you want to enable reading of urandom for all domains, you must turn on the global_ssp boolean. Disabled by default.

       setsebool -P global_ssp 1

       If  you want to allow HTTPD scripts and modules to connect to databases over the network, you must turn on the httpd_can_network_connect_db
       boolean. Disabled by default.

       setsebool -P httpd_can_network_connect_db 1

       If you want to allow confined applications to run with kerberos, you must turn on the kerberos_enabled boolean. Enabled by default.

       setsebool -P kerberos_enabled 1

       If you want to allow system to run with NIS, you must turn on the nis_enabled boolean. Disabled by default.

       setsebool -P nis_enabled 1

       If you want to allow confined applications to use nscd shared memory, you must turn on the nscd_use_shm boolean. Enabled by default.

       setsebool -P nscd_use_shm 1

NSSWITCH DOMAIN

       If you want to allow users to resolve user passwd entries directly from ldap rather then using a sssd server for  the  mysqld_t,  you  must
       turn on the authlogin_nsswitch_use_ldap boolean.

       setsebool -P authlogin_nsswitch_use_ldap 1

       If you want to allow confined applications to run with kerberos for the mysqld_t, you must turn on the kerberos_enabled boolean.

       setsebool -P kerberos_enabled 1

PORT TYPES

       SELinux defines port types to represent TCP and UDP ports.

       You can see the types associated with a port by using the following command:

       semanage port -l

       Policy  governs	the  access  confined processes have to these ports.  SELinux mysqld policy is very flexible allowing users to setup their
       mysqld processes in as secure a method as possible.

       The following port types are defined for mysqld:

       mysqld_port_t

       Default Defined Ports:
		 tcp 1186,3306,63132-63164

MANAGED FILES

       The SELinux process type mysqld_t can manage files labeled with the following file types.  The paths listed are the default paths for these
       file types.  Note the processes UID still need to have DAC permissions.

       cluster_conf_t

	    /etc/cluster(/.*)?

       cluster_var_lib_t

	    /var/lib/pcsd(/.*)?
	    /var/lib/cluster(/.*)?
	    /var/lib/openais(/.*)?
	    /var/lib/pengine(/.*)?
	    /var/lib/corosync(/.*)?
	    /usr/lib/heartbeat(/.*)?
	    /var/lib/heartbeat(/.*)?
	    /var/lib/pacemaker(/.*)?

       cluster_var_run_t

	    /var/run/crm(/.*)?
	    /var/run/cman_.*
	    /var/run/rsctmp(/.*)?
	    /var/run/aisexec.*
	    /var/run/heartbeat(/.*)?
	    /var/run/cpglockd.pid
	    /var/run/corosync.pid
	    /var/run/rgmanager.pid
	    /var/run/cluster/rgmanager.sk

       hugetlbfs_t

	    /dev/hugepages
	    /lib/udev/devices/hugepages
	    /usr/lib/udev/devices/hugepages

       mysqld_db_t

	    /var/lib/mysql(/.*)?

       mysqld_log_t

	    /var/log/mysql.*
	    /var/log/mariadb(/.*)?

       mysqld_tmp_t

       mysqld_var_run_t

	    /var/run/mysqld(/.*)?
	    /var/run/mariadb(/.*)?
	    /var/lib/mysql/mysql.sock

       root_t

	    /
	    /initrd

FILE CONTEXTS

       SELinux requires files to have an extended attribute to define the file type.

       You can see the context of a file using the -Z option to ls

       Policy  governs	the  access  confined processes have to these files.  SELinux mysqld policy is very flexible allowing users to setup their
       mysqld processes in as secure a method as possible.

       EQUIVALENCE DIRECTORIES

       mysqld policy stores data with multiple different file context types under the /var/lib/mysql directory.  If you would like  to	store  the
       data  in  a  different directory you can use the semanage command to create an equivalence mapping.  If you wanted to store this data under
       the /srv dirctory you would execute the following command:

       semanage fcontext -a -e /var/lib/mysql /srv/mysql
       restorecon -R -v /srv/mysql

       STANDARD FILE CONTEXT

       SELinux defines the file context types for the mysqld, if you wanted to store files with these types in a diffent paths, you need  to  exe-
       cute the semanage command to sepecify alternate labeling and then use restorecon to put the labels on disk.

       semanage fcontext -a -t mysqld_db_t '/srv/mysqld/content(/.*)?'
       restorecon -R -v /srv/mymysqld_content

       Note: SELinux often uses regular expressions to specify labels that match multiple files.

       The following file types are defined for mysqld:

       mysqld_db_t

       - Set files with the mysqld_db_t type, if you want to treat the files as mysqld database content.

       mysqld_etc_t

       - Set files with the mysqld_etc_t type, if you want to store mysqld files in the /etc directories.

       Paths:
	    /etc/mysql(/.*)?, /etc/my.cnf

       mysqld_exec_t

       - Set files with the mysqld_exec_t type, if you want to transition an executable to the mysqld_t domain.

       Paths:
	    /usr/sbin/mysqld(-max)?, /usr/sbin/ndbd, /usr/libexec/mysqld, /usr/bin/mysql_upgrade

       mysqld_home_t

       - Set files with the mysqld_home_t type, if you want to store mysqld files in the users home directory.

       Paths:
	    /root/.my.cnf, /home/[^/]*/.my.cnf

       mysqld_initrc_exec_t

       - Set files with the mysqld_initrc_exec_t type, if you want to transition an executable to the mysqld_initrc_t domain.

       mysqld_log_t

       - Set files with the mysqld_log_t type, if you want to treat the data as mysqld log data, usually stored under the /var/log directory.

       Paths:
	    /var/log/mysql.*, /var/log/mariadb(/.*)?

       mysqld_safe_exec_t

       - Set files with the mysqld_safe_exec_t type, if you want to transition an executable to the mysqld_safe_t domain.

       mysqld_tmp_t

       - Set files with the mysqld_tmp_t type, if you want to store mysqld temporary files in the /tmp directories.

       mysqld_unit_file_t

       - Set files with the mysqld_unit_file_t type, if you want to treat the files as mysqld unit content.

       Paths:
	    /usr/lib/systemd/system/mysqld.*, /usr/lib/systemd/system/mariadb.*

       mysqld_var_run_t

       - Set files with the mysqld_var_run_t type, if you want to store the mysqld files under the /run or /var/run directory.

       Paths:
	    /var/run/mysqld(/.*)?, /var/run/mariadb(/.*)?, /var/lib/mysql/mysql.sock

       Note:  File context can be temporarily modified with the chcon command.	If you want to permanently change the file context you need to use
       the semanage fcontext command.  This will modify the SELinux labeling database.	You will need to use restorecon to apply the labels.

COMMANDS

       semanage fcontext can also be used to manipulate default file context mappings.

       semanage permissive can also be used to manipulate whether or not a process type is permissive.

       semanage module can also be used to enable/disable/install/remove policy modules.

       semanage port can also be used to manipulate the port definitions

       semanage boolean can also be used to manipulate the booleans

       system-config-selinux is a GUI tool available to customize SELinux policy settings.

AUTHOR

       This manual page was auto-generated using sepolicy manpage .

SEE ALSO

       selinux(8), mysqld(8), semanage(8), restorecon(8), chcon(1), sepolicy(8) , setsebool(8), mysqld_safe_selinux(8)

mysqld								     14-06-10							 mysqld_selinux(8)