Hi We are running BIND 9.8.0 on Solaris 10 machine.
We are getting continuous hits from various IPs to isc.org (snoop report attached) Due to it our DNS is not responding to other genuine query and users are not able to browse. 0.00002 59.178.138.195 -> 203.94.243.70 DNS C isc.org. Internet * ? 929 0.00000 59.178.51.128 -> 203.94.243.70 DNS C isc.org. Internet * ? 937 0.00000 59.178.166.44 -> 203.94.243.70 DNS C isc.org. Internet * ? 944 0.00000 120.59.103.34 -> 203.94.243.70 DNS C isc.org. Internet * ? 949 0.00000 59.180.142.190 -> 203.94.243.70 DNS C isc.org. Internet * ? 955 0.00001 59.178.50.68 -> 203.94.243.70 DNS C isc.org. Internet * ? 964 0.00000 120.60.156.1 -> 203.94.243.70 DNS C isc.org. Internet * ? 969 0.00001 59.180.159.121 -> 203.94.243.70 DNS C isc.org. Internet * ? 973 0.00000 59.178.182.103 -> 203.94.243.70 DNS C isc.org. Internet * ? 980 0.00000 59.178.169.247 -> 203.94.243.70 DNS C isc.org. Internet * ? 983 0.00000 59.178.162.136 -> 203.94.243.70 DNS C isc.org. Internet * ? 993 0.00003 120.59.108.86 -> 203.94.243.70 DNS C isc.org. Internet * ? 998 0.00000 59.178.51.96 -> 203.94.243.70 DNS C isc.org. Internet * ? 999 0.00010 120.56.185.176 -> 203.94.243.70 DNS C isc.org. Internet * ? 1001 0.00000 59.180.146.89 -> 203.94.243.70 DNS C isc.org. Internet * ? 1015 0.00002 59.178.177.217 -> 203.94.243.70 DNS C isc.org. Internet * ? 1027 0.00000 59.178.62.149 -> 203.94.243.70 DNS C isc.org. Internet * ? 1028 0.00000 59.178.165.0 -> 203.94.243.70 DNS C isc.org. Internet * ? 1037 0.00000 59.180.140.93 -> 203.94.243.70 DNS C isc.org. Internet * ? 1064 0.00000 59.178.183.73 -> 203.94.243.70 DNS C isc.org. Internet * ? 1093 0.00000 59.177.139.7 -> 203.94.243.70 DNS C isc.org. Internet * ? 1103 0.00001 59.183.143.46 -> 203.94.243.70 DNS C isc.org. Internet * ? Thanks Amit
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