my.cnf utf8 캐릭터셋 변경 [client] default-character-set=utf8 [mysqld] collation-server = utf8_unicode_ci character-set-server = utf8 skip-character-set-client-handshake [mysql] default-character-set=utf8 [mysqldump] default-character-set=utf8 리눅스/mysql 2019.04.22