1update mysql.user set plugin='unix_socket'; 2flush privileges; 3connect(localhost,USER,,test,MASTER_PORT,MASTER_SOCKET); 4connect fail,localhost,$USER; 5ERROR HY000: Plugin 'unix_socket' is not loaded 6ERROR HY000: Plugin 'unix_socket' is not loaded 7install plugin unix_socket soname 'auth_socket.so'; 8connect(localhost,USER,,test,MASTER_PORT,MASTER_SOCKET); 9ERROR 28000: Access denied for user 'USER'@'localhost' 10ERROR 28000: Access denied for user 'USER'@'localhost' 11update mysql.user set plugin=''; 12flush privileges; 13uninstall plugin unix_socket; 14