I need to block these bastards

I check my LogWatch report and found these IPs has attempted multiple connection to ftp and ssh on my server. Here is detail

Failed logins from these:
admin/password from 203.30.170.12: 8 Time(s)
admin/password from 210.123.181.195: 12 Time(s)
admin/password from 210.127.243.85: 14 Time(s)
admin/password from 210.205.6.157: 14 Time(s)
admin/password from 217.26.14.33: 14 Time(s)
guest/password from 203.30.170.12: 4 Time(s)
guest/password from 210.123.181.195: 6 Time(s)
guest/password from 210.127.243.85: 7 Time(s)
guest/password from 210.205.6.157: 7 Time(s)
guest/password from 210.52.213.6: 3 Time(s)
guest/password from 217.26.14.33: 7 Time(s)
root/password from 203.30.170.12: 12 Time(s)
root/password from 210.123.181.195: 18 Time(s)
root/password from 210.127.243.85: 21 Time(s)
root/password from 210.205.6.157: 21 Time(s)
root/password from 217.26.14.33: 21 Time(s)
test/password from 203.30.170.12: 9 Time(s)
test/password from 210.123.181.195: 12 Time(s)
test/password from 210.127.243.85: 14 Time(s)
test/password from 210.205.6.157: 14 Time(s)
test/password from 210.52.213.6: 3 Time(s)
test/password from 217.26.14.33: 14 Time(s)
user/password from 203.30.170.12: 4 Time(s)
user/password from 210.123.181.195: 6 Time(s)
user/password from 210.127.243.85: 7 Time(s)
user/password from 210.205.6.157: 7 Time(s)
user/password from 217.26.14.33: 7 Time(s)

Any suggestions. I want to block these bastards.

Thanks
GN

 

 

 

 

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