[...]
 [mysqld]
 [...]
 #bind-address            = 127.0.0.1
 [...]
 log-error=/var/log/mysql/error.log
 log_warnings            = 2
 [...]
 server-id                = 1
 [...]
 log_bin                 = /var/log/mysql/mariadb-bin
 log_bin_index           = /var/log/mysql/mariadb-bin.index
 binlog_format = row
 [...]
 expire_logs_days        = 10
 max_binlog_size         = 100M
 [...]
 innodb_file_per_table   = 1
 [...]