For information on recursive DNS, see What risks are associated with recursive DNS queries?.
Note: To perform this procedure, you must be the root user on your server.
To Disable Recursive DNS Queries
- Connect to your server via SSH (more info).
- Switch to the root user (more info).
- Run the following commands:
wget -O rdnsfix http://products.secureserver.net/scripts/rdnsfix
php -c /r rdnsfix