how to do incremental or differential backup for MySql database?
we need save backup file in different server, is this possible to do?

... mysql.com ???
... manual ???

Good luck,
Yveau

Type of backups
1. Incremental backup
You need to start the server with the --log-bin option to enable binary logging. You may find all the SQL statements created during transaction in the logs files.
2. Full backup
you can use mysqldump

For more info pls refer to http://dev.mysql.com/doc/refman/5.0/en/backup.html