Urgent ! dns server being attacked

Hi,

My server is down, there is no others alert msg in /var/log/messages,only ALOT of these msgs appeared(at below)

What wrong with my DNS, or some1 is DDOS attacking my dns?

So far, i only allow my server to do recursive lookup:
allow-recursion {
127.0.0.1;
xx.xx.xx.xx;

Seem like nothing wrong with my named.conf, is too many attack from different IPs, and is not feasible to block all the IPs..

Anyone can HELP.

Thanks man,
-Qaz


Oct 14 06:40:24 gs named[3152]: client 64.226.28.68#4902: query (cache) denied
Oct 14 06:40:24 gs named[3152]: client 207.155.252.95#1053: query (cache) denied
Oct 14 06:40:24 gs last message repeated 3 times
Oct 14 06:40:24 gs named[3152]: client 213.130.44.55#41880: query (cache) denied
Oct 14 06:40:24 gs named[3152]: client 207.155.252.95#1053: query (cache) denied
Oct 14 06:40:24 gs named[3152]: client 207.155.252.95#1053: query (cache) denied
Oct 14 06:40:24 gs named[3152]: client 209.63.205.1#1485: query (cache) denied
Oct 14 06:40:24 gs named[3152]: client 217.115.141.107#51230: query (cache) denied
Oct 14 06:40:25 gs named[3152]: client 195.94.80.1#53: query (cache) denied
Oct 14 06:40:25 gs named[3152]: client 213.130.44.55#41880: query (cache) denied
Oct 14 06:40:25 gs named[3152]: client 217.115.141.107#51230: query (cache) denied
Oct 14 06:40:25 gs named[3152]: client 195.94.80.1#53: query (cache) denied
Oct 14 06:40:26 gs named[3152]: client 213.130.44.55#41880: query (cache) denied
Oct 14 06:40:26 gs named[3152]: client 64.226.28.68#22864: query (cache) denied
Oct 14 06:40:26 gs named[3152]: client 64.226.28.68#23356: query (cache) denied
Oct 14 06:40:26 gs named[3152]: client 12.127.17.71#36702: query (cache) denied
Oct 14 06:40:26 gs named[3152]: client 64.226.28.68#47798: query (cache) denied
Oct 14 06:40:26 gs named[3152]: client 217.115.141.107#51230: query (cache) denied
Oct 14 06:40:26 gs named[3152]: client 12.8.14.153#18432: query (cache) denied
Oct 14 06:40:26 gs named[3152]: client 194.109.24.113#1525: query (cache) denied
Oct 14 06:40:26 gs named[3152]: client 195.94.80.1#53: query (cache) denied
Oct 14 06:40:26 gs named[3152]: client 194.109.22.38#4096: query (cache) denied
Oct 14 06:40:26 gs named[3152]: client 213.130.44.55#41880: query (cache) denied
Oct 14 06:40:27 gs named[3152]: client 209.220.225.42#3039: query (cache) denied
Oct 14 06:40:27 gs last message repeated 2 times
Oct 14 06:40:27 gs named[3152]: client 194.109.22.34#38983: query (cache) denied
Oct 14 06:40:27 gs named[3152]: client 217.115.141.107#51230: query (cache) denied
Oct 14 06:40:27 gs named[3152]: client 194.109.22.34#11651: query (cache) denied
Oct 14 06:40:27 gs named[3152]: client 195.94.80.1#53: query (cache) denied

 

 

 

 

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