The Domain Name System (DNS) is a distributed, hierarchical system that provides a method for identifying hosts on the Internet. DNS uses alphanumeric names called fully- qualified domain names (FQDNs) instead of using numeric IP addresses that are difficult to remember.
The entries in the DNS Settings section are as follows.
|Domain name||The domain name of the WebTitan Cloud appliance.|
|DNS Server(s)||The IP address of the Primary DNS server and the IP addresses of any secondary DNS servers for the appliance. The primary DNS server should be the fastest DNS server accessible to the appliance. Click Add to add each IP address.|
|DNS Forwarding||Use this to enable or disable DNS forwarding on the WTC appliance.|
|Cache Size (MB)||Here we specify the size of the cache we wish to be stored on the WTC appliance. The default value is 31MB.|
|Flush Cache||The cache can be flushed by clicking on the Flush option in this section. You will be notified by a status message when the cache has been successfully flushed.|
|Permitted IP Addresses||This will display the list of IP addresses that are currently accepted by the WebTitan Cloud appliance. When a new IP address is added it will be appended to this list.|