When I go into the DNS setting there is one DNS server listed by default and that the IP address of the gateway, If I change the address to the Google DNS servers instead of using the gateway IP address will DNS Caching still be done? Or is there no DNS caching with this version of Sophos? Not sure now because I don't see anyway of clearing the DNS Caching on the DNS page. Also if I keep the default IP address in the DNS server is it using my WAN DNS server settings from my ISP?
Thanks