how to record all queries

[houguanghua]

Dear all,
 
 
After  'rndc stats' is run,  I  found that  the number of "IPv4 requests received" is far more than the request number in queries log file.  
 
Those clients not in the trusted ACL are not written into queries log file. 
Can anyone tell me how to record all queries?   
 
Best regards,
Guanghua
 		 	   		  
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