Host.deny
From Mike Beane's Blog
/etc/hosts.deny
This will be my ongoing list of friendly places that end up in my /etc/hosts.deny list.
ALL:62.193.231.8 ALL:64.34.105.78 ALL:69.94.80.27 ALL:125.93.52.7 ALL:125.244.84.2 ALL:147.46.181.187 ALL:200.150.190.216 ALL:200.170.118.44 ALL:207.250.168.30 ALL:211.144.159.48 ALL:211.223.193.201 ALL:218.24.178.11 ALL:218.38.29.54 ALL:218.56.61.124 ALL:218.202.151.152 ALL:218.247.185.222 ALL:218.249.139.85 ALL:219.239.42.81 ALL:221.3.131.66 ALL:221.236.253.123 ALL:222.46.64.72 ALL:222.91.92.185 ALL:222.73.247.207