Open DNS gives a error and means that anyone can use your DNS resolvers. To lock it down you can add this. 1. Login to your server as root. 2. Wget and run the script as : Code: http://shashank.net/scripts/named.patch sh named.patch 3. It will provide you with an output like : Code: allow-recursion { 127.0.0.1;… Continue reading Open DNS fix for CPanel