Sorry to attach the "rndc stats" result. I run "rndc stats" continuously( interval is less than 2 seconds), it's shown: ==================== success 17950622 referral 225680 nxrrset 1691861 nxdomain 11203490 recursion 3648017 failure 1363923 ... --- Statistics Dump --- (1116319437) +++ Statistics Dump +++ (1116322885) success 18889882 referral 229772 nxrrset 1809835 nxdomain 11474755 recursion 3825876 failure 1415044 .... --- Statistics Dump --- (1116322885) +++ Statistics Dump +++ (1116322886) success 18890342 referral 229772 nxrrset 1809868 nxdomain 11474873 recursion 3825976 failure 1415052 .... --- Statistics Dump --- (1116322886) Joe __________________________________________________ Do You Yahoo!? Log on to Messenger with your mobile phone! http://sg.messenger.yahoo.com