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<P DIR=LTR ALIGN=JUSTIFY><SPAN LANG="en-us"></SPAN><A NAME=""><SPAN LANG="en-us"></SPAN></A><SPAN LANG="en-us"></SPAN><A NAME=""><SPAN LANG="en-us"></SPAN><SPAN LANG="en-us"><FONT FACE="Calibri">Hi everyone, I try to set up an authentic bind server in the loopback address(127.0.0.1) in our recursive server of</FONT></SPAN></A><SPAN LANG="en-us"> </SPAN><A NAME=""><SPAN LANG="en-us"></SPAN><SPAN LANG="en-us"></SPAN></A><SPAN LANG="en-us"></SPAN><A NAME=""><SPAN LANG="en-us"></SPAN><SPAN LANG="en-us"><FONT FACE="Calibri">our</FONT></SPAN></A><SPAN LANG="en-us"></SPAN><SPAN LANG="en-us"> <FONT FACE="Calibri">testbed for test reason. When I send a large number of junk queries(5000QPS), the srrt of loopback server in cas</FONT><FONT FACE="Calibri">h is unexpectedly large. Does anyone know the reason?</FONT></SPAN><SPAN LANG="en-us"><FONT FACE="Calibri"></FONT></SPAN><SPAN LANG="en-us"> <FONT FACE="Calibri">T</FONT></SPAN><SPAN LANG="en-us"><FONT FACE="Calibri">he</FONT> <FONT FACE="Calibri">sr</FONT></SPAN><SPAN LANG="en-us"><FONT FACE="Calibri">rt is no</FONT><FONT FACE="Calibri">rmal when I dig or</FONT> <FONT FACE="Calibri">ping the loopback server by the way.</FONT></SPAN><SPAN LANG="en-us"></SPAN></P>
<P DIR=LTR ALIGN=JUSTIFY><SPAN LANG="en-us"><FONT FACE="Calibri">The dump_cache.db</FONT><FONT FACE="Calibri">¡¯</FONT><FONT FACE="Calibri">s content:</FONT></SPAN></P>
<P DIR=LTR ALIGN=JUSTIFY><SPAN LANG="en-us"></SPAN><SPAN LANG="en-us"><FONT SIZE=2 FACE="Calibri">; Address database dump</FONT></SPAN></P>
<P DIR=LTR ALIGN=JUSTIFY><SPAN LANG="en-us"><FONT SIZE=2 FACE="Calibri">;</FONT></SPAN></P>
<P DIR=LTR ALIGN=JUSTIFY><SPAN LANG="en-us"><FONT SIZE=2 FACE="Calibri">; 10.root-servers.net [v4 TTL 10744] [v6 TTL 86344] [v4 nxrrset] [v6 success]</FONT></SPAN></P>
<P DIR=LTR ALIGN=JUSTIFY><SPAN LANG="en-us"><FONT SIZE=2 FACE="Calibri">; 240c:f:1:122::13 [srtt 212] [flags 00002000] [ttl 1746]</FONT></SPAN></P>
<P DIR=LTR ALIGN=JUSTIFY><SPAN LANG="en-us"><FONT SIZE=2 FACE="Calibri">; 8.root-s</FONT><FONT SIZE=2 FACE="Calibri">ervers.net [v4 TTL 10744] [v6 TTL 86344] [v4 nxrrset] [v6 success]</FONT></SPAN></P>
<P DIR=LTR ALIGN=JUSTIFY><SPAN LANG="en-us"><FONT SIZE=2 FACE="Calibri">; 240c:f:1:122::11 [srtt 744] [flags 00002000] [ttl 1746]</FONT></SPAN></P>
<P DIR=LTR ALIGN=JUSTIFY><SPAN LANG="en-us"><FONT SIZE=2 FACE="Calibri">; 3.root-servers.net [v4 TTL 10744] [v6 TTL 86344] [v4 nxrrset] [v6 success]</FONT></SPAN></P>
<P DIR=LTR ALIGN=JUSTIFY><SPAN LANG="en-us"><FONT SIZE=2 FACE="Calibri">; 240c:f:1:122::6 [srtt 171] [flags 0000</FONT><FONT SIZE=2 FACE="Calibri">2000] [ttl 1746]</FONT></SPAN></P>
<P DIR=LTR ALIGN=JUSTIFY><SPAN LANG="en-us"><FONT SIZE=2 FACE="Calibri">; 9.root-servers.net [v4 TTL 10744] [v6 TTL 86344] [v4 nxrrset] [v6 success]</FONT></SPAN></P>
<P DIR=LTR ALIGN=JUSTIFY><SPAN LANG="en-us"><FONT SIZE=2 FACE="Calibri">; 240c:f:1:122::12 [srtt 44] [flags 00002000] [ttl 1746]</FONT></SPAN></P>
<P DIR=LTR ALIGN=JUSTIFY><SPAN LANG="en-us"><FONT SIZE=2 FACE="Calibri">; 4.root-servers.net [v4 TTL 10744] [v6 TTL 86344] [v4 nxrrset] [v6 success]</FONT></SPAN></P>
<P DIR=LTR ALIGN=JUSTIFY><SPAN LANG="en-us"><FONT SIZE=2 FACE="Calibri">; 240c:f:1:122::7 [srtt 64] [flags 00002000] [ttl 1746]</FONT></SPAN></P>
<P DIR=LTR ALIGN=JUSTIFY><SPAN LANG="en-us"><FONT SIZE=2 FACE="Calibri">; 13.root-servers.net [v4 TTL 10744] [v6 TTL 86344] [v4 nxrrset] [v6</FONT><FONT SIZE=2 FACE="Calibri"> success]</FONT></SPAN></P>
<P DIR=LTR ALIGN=JUSTIFY><SPAN LANG="en-us"><FONT SIZE=2 FACE="Calibri">; 240c:f:1:122::16 [srtt 26] [flags 00002000] [ttl 1746]</FONT></SPAN></P>
<P DIR=LTR ALIGN=JUSTIFY><SPAN LANG="en-us"><FONT SIZE=2 FACE="Calibri">; 5.root-servers.net [v4 TTL 10744] [v6 TTL 86344] [v</FONT><FONT SIZE=2 FACE="Calibri">4 nxrrset] [v6 success]</FONT></SPAN></P>
<P DIR=LTR ALIGN=JUSTIFY><SPAN LANG="en-us"><FONT SIZE=2 FACE="Calibri">; 240c:f:1:122::8 [srtt 29] [flags 00002000] [ttl 1746]</FONT></SPAN></P>
<P DIR=LTR ALIGN=JUSTIFY><SPAN LANG="en-us"><FONT SIZE=2 FACE="Calibri">; 12.root-servers.net [v4 TTL 10744] [v6 T</FONT><FONT SIZE=2 FACE="Calibri">TL 86344] [v4 nxrrset] [v6 success]</FONT></SPAN></P>
<P DIR=LTR ALIGN=JUSTIFY><SPAN LANG="en-us"><FONT SIZE=2 FACE="Calibri">; 240c:f:1:122::15 [srtt 2054] [flags 00002000] [ttl 1746]</FONT></SPAN></P>
<P DIR=LTR ALIGN=JUSTIFY><SPAN LANG="en-us"><FONT SIZE=2 FACE="Calibri">; 6.root-servers.net [v4 TTL 10744] [v6 TTL 86344] [v4 nxrrset] [v6 success]</FONT></SPAN></P>
<P DIR=LTR ALIGN=JUSTIFY><SPAN LANG="en-us"><FONT SIZE=2 FACE="Calibri">; 240c:f:1:122::9 [srtt 663] [flags 00002000] [ttl 1746]</FONT></SPAN></P>
<P DIR=LTR ALIGN=JUSTIFY><SPAN LANG="en-us"><FONT SIZE=2 FACE="Calibri">; 1.root-servers.net [v4 TTL 10744] [v6 TTL 86344] [v4 nxrrset] [v6 success]</FONT></SPAN></P>
<P DIR=LTR ALIGN=JUSTIFY><SPAN LANG="en-us"><FONT SIZE=2 FACE="Calibri">; 240c:f:1:122::2 [srtt 550] [flags 00002000] [ttl 1746]</FONT></SPAN></P>
<P DIR=LTR ALIGN=JUSTIFY><SPAN LANG="en-us"><FONT SIZE=2 FACE="Calibri">; 11.root-servers.net [v4 TTL 10744] [v6 TTL 86344] [v4 nxrrset] [v6 success]</FONT></SPAN></P>
<P DIR=LTR ALIGN=JUSTIFY><SPAN LANG="en-us"><FONT SIZE=2 FACE="Calibri">; 240c:f:1:122::14 [srtt 44] [flags 00002000] [ttl 1746]</FONT></SPAN></P>
<P DIR=LTR ALIGN=JUSTIFY><SPAN LANG="en-us"><FONT SIZE=2 FACE="Calibri">; 7.root-servers.net [v4 TTL 10744] [v6 TTL 86344] [v4 nxrrset] [v6 success]</FONT></SPAN></P>
<P DIR=LTR ALIGN=JUSTIFY><SPAN LANG="en-us"><FONT SIZE=2 FACE="Calibri">; 240c:f:1:122::10 [srtt 918] [flags 00002000] [ttl 1746]</FONT></SPAN></P>
<P DIR=LTR ALIGN=JUSTIFY><SPAN LANG="en-us"><FONT SIZE=2 FACE="Calibri">; 2.root-servers.net [v4 TTL 10744] [v6 TTL 86344] [v4 nxrrset] [v6 success]</FONT></SPAN></P>
<P DIR=LTR ALIGN=JUSTIFY><SPAN LANG="en-us"><FONT SIZE=2 FACE="Calibri">; 240c:f:1:122::5 [srtt 360] [flags 00002000] [ttl 1746]</FONT></SPAN></P>
<P DIR=LTR ALIGN=JUSTIFY><SPAN LANG="en-us"><FONT SIZE=2 FACE="Calibri">; Unassociated entries</FONT></SPAN></P>
<P DIR=LTR ALIGN=JUSTIFY><SPAN LANG="en-us"><FONT SIZE=2 FACE="Calibri">;</FONT></SPAN></P>
<P DIR=LTR ALIGN=JUSTIFY><SPAN LANG="en-us"><FONT SIZE=2 FACE="Calibri">; ::1 [srtt 689] [flags 00002000] [ttl 1745]</FONT></SPAN></P>
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<P DIR=LTR ALIGN=JUSTIFY><SPAN LANG="en-us"></SPAN><SPAN LANG="en-us"><FONT SIZE=2 FACE="Calibri">Best Regards</FONT></SPAN></P>
<P DIR=LTR ALIGN=JUSTIFY><SPAN LANG="en-us"><FONT SIZE=2 FACE="Calibri">Runxia Wan</FONT></SPAN></P>
<P DIR=LTR ALIGN=JUSTIFY><SPAN LANG="en-us"></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"></SPAN><SPAN LANG="en-us"></SPAN><SPAN LANG="zh-cn"><BR>
<FONT COLOR="#333333" SIZE=2>---------------<BR>
</FONT><FONT COLOR="#333333" SIZE=2 FACE="ËÎÌå">Runxia Wan(Brian)</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="zh-cn"><FONT COLOR="#333333" SIZE=2 FACE="ËÎÌå">Research Engineer<BR>
BII Lab</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="zh-cn"><FONT COLOR="#333333" SIZE=2 FACE="ËÎÌå">Beijing Internet Institute(BII)</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"></SPAN><SPAN LANG="en-us"></SPAN><SPAN LANG="zh-cn"><FONT COLOR="#000000" SIZE=2 FACE="ËÎÌå">rxwan@biigroup.cn</FONT></SPAN><SPAN LANG="en-us"></SPAN><SPAN LANG="en-us"></SPAN><SPAN LANG="zh-cn"></SPAN></P>
<P DIR=LTR ALIGN=JUSTIFY><SPAN LANG="en-us"></SPAN><SPAN LANG="zh-cn"></SPAN></P>
<P DIR=LTR ALIGN=JUSTIFY><SPAN LANG="en-us"></SPAN></P>
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