[home]$ /bin/netstat -ntu | awk '{print $5}' | cut -d: -f1 | sort |uniq -c | sort -n |more
     1 142.32.208.232
     1 142.58.185.157
     1 154.5.60.241
     1 164.77.228.99
     1 192.28.0.22
     1 192.168.100.235
     1 208.80.193.29
     1 213.250.36.94
     1 66.249.67.34
     1 72.30.142.170
     1 98.188.147.225
     1 Address
     1 servers)
     2 41.4.138.112
     2 67.195.115.54
     3 192.168.100.236
     3 209.216.175.95
     3 213.39.187.103
     4 192.168.100.18
     6 192.168.100.16
     6 74.13.129.145
     6 79.65.242.231
     8 199.60.221.132
    13 65.2.116.47
    31 192.168.100.46
Block un-wanted IPs using IPTables
/sbin/iptables -I INPUT -s 12.34.56.78 -j DROP
/sbin/service iptables save
/sbin/service iptables restart
