mariadbのコンフィグファイルであるmy.cnfにポートの設定を追加する。mysqldセクションとportを下記のように追加して再起動する。そしてmysqlにログインして show variables like ‘port’; を実行して反映されているか確認。
# nano /etc/mysql/my.cnf
# The MariaDB configuration file
#
# The MariaDB/MySQL tools read configuration files in the following order:
# 1. “/etc/mysql/mariadb.cnf” (this file) to set global defaults,
# 2. “/etc/mysql/conf.d/*.cnf” to set global options.
# 3. “/etc/mysql/mariadb.conf.d/*.cnf” to set MariaDB-only options.
# 4. “~/.my.cnf” to set user-specific options.
#
# If the same option is defined multiple times, the last one will apply.
#
# One can use all long options that the program supports.
# Run program with –help to get a list of available options and with
# –print-defaults to see which it would actually understand and use.#
# This group is read both both by the client and the server
# use it for options that affect everything
#
[mysqld]
port=10456[client-server]
# Import all .cnf files from configuration directory
!includedir /etc/mysql/conf.d/
!includedir /etc/mysql/mariadb.conf.d/
