Nc
>nc -znv 192.168.0.98 1-65535
>nc -v -w 1 192.168.0.110 -z 1-1000
>for i in {101..102}; do nc -vv -n -w 1 192.168.0.$i 21-25 -z; done
>nc -znv 192.168.0.98 1-65535
>nc -v -w 1 192.168.0.110 -z 1-1000
>for i in {101..102}; do nc -vv -n -w 1 192.168.0.$i 21-25 -z; done