How to turn MariaDB?

I want to turn my MariaDB server, but all of my string in /etc/my.cnf ignored.

my.cnf below:
------------------
[mysqld]
bind-address = ::
skip_name_resolve
local-infile=0
datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock
# Disabling symbolic-links is recommended to prevent assorted security risks
symbolic-links=0
# Settings user and group are ignored when systemd is used.
# If you need to run mysqld under a different user or group,
# customize your systemd unit file for mariadb...

How to turn MariaDB?