Cookbook    Configuration 
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b   Check  the WAN  ports  connected to  the DNS server,  and configure the DNS  server address  of the 
corresponding line. 
 
 
c   Click Save. 
d   Check DNS proxy statistics.   
 
 
(3)  Check the DNS Whitelist tab and set the configuration items. 
The DNS Whitelist function is used to set special resources (including IP addresses and DNS servers) that are 
not affected by the DNS proxy function. 
Select IP/IP Range or DNS Server, enter the corresponding IP address in the IP/IP range text box, and click 
Add. 
The configuration will be displayed.