xrhsimopoio ssh gia na kano port forwarding se sygkekrimenh porta. To problhma pou exo einai to ekshs: eno sto localhost akouei kanonika o ssh bazontas thn ip toy mhxanhmatos h to onoma den akouei sthn porta. xrhsimopoio thn entolh ssh -L 1521:machine:1521 account at mymachine