I'm having thousands of queries a domain isc.org and this increases my cpu percentage to 100%. That may be happening and how I can control this? is an attack? attachment of the log I made an update to
190.34.55.70 - 201.224.83.242 DNS C isc.org. Internet * ? 190.33.3.27 - 201.224.83.242 DNS C isc.org. Internet * ? 190.32.57.243 - 201.224.83.242 DNS C isc.org. Internet * ? 201.224.149.40 - 201.224.83.242 DNS C isc.org. Internet * ? 190.35.22.44 - 201.224.83.242 DNS C isc.org. Internet * ? 186.73.76.87 - 201.224.83.242 DNS C isc.org. Internet * ? 190.34.44.109 - 201.224.83.242 DNS C isc.org. Internet * ? 190.32.56.118 - 201.224.83.242 DNS C isc.org. Internet * ? 190.34.27.201 - 201.224.83.242 DNS C isc.org. Internet * ? 201.224.115.26 - 201.224.83.242 DNS C isc.org. Internet * ? 190.32.165.139 - 201.224.83.242 DNS C isc.org. Internet * ? 190.33.231.148 - 201.224.83.242 DNS C isc.org. Internet * ? 190.35.84.29 - 201.224.83.242 DNS C isc.org. Internet * ? Thanks a lot! JM ___ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
Re:
thanks chuck, about the other question, as to reduce the response time of my server when the domain does not exist? Thanks a lot! JM 2012/11/29 Chuck Swiger cswi...@mac.com Hi-- On Nov 29, 2012, at 3:00 PM, Jose Manuel Delgado G. wrote: I have the following problem in resolving my DNS using Bind 9, sends me an error connection time out, no servers Could be reached. that way I can avoid giving these errors and how I can reduce the time of the response? this example with my server and public google dns server. # dig @8.8.8.8 videolinedvd.com [ ... ] You've got two nameservers for the domain per WHOIS as: Domain servers in listed order: NS1.VIDEOLINEDVD.COM NS2.VIDEOLINEDVD.COM ...but they don't have A records setup. Your nameservers must have A records: % dig NS1.VIDEOLINEDVD.COM @8.8.8.8 [ ... ] ;; -HEADER- opcode: QUERY, status: SERVFAIL, id: 36700 ;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 0 ;; QUESTION SECTION: ;NS1.VIDEOLINEDVD.COM. IN A See http://www.dnsvalidation.com/reports/50b7e96a7d79ee480a04 Regards, -- -Chuck ___ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
repeated several times request
Bind 9.9.1-P2 I have installed on a server with Solaris 10, when a client makes a query, this is repeated several times and it comes with the domain installed in the client machine. 172.25.3.5 - 172.25.3.11 DNS C samsungvuieventlog.vlingo.com. Internet ? 172.25.3.11 - 172.25.3.5 DNS R Error: 3(Name Error) 172.25.3.5 - 172.25.3.11 DNS C samsungvuieventlog.vlingo.com.* cwpanama.com*. Internet ? 172.25.3.11 - 172.25.3.5 DNS R Error: 3(Name Error) 172.25.3.5 - 172.25.3.11 DNS C samsungvuieventlog.vlingo.com. Internet Addr ? 172.25.3.11 - 172.25.3.5 DNS R Error: 3(Name Error) 172.25.3.5 - 172.25.3.11 DNS C samsungvuieventlog.vlingo.com.* cwpanama.com*. Internet Addr ? 172.25.3.11 - 172.25.3.5 DNS R Error: 3(Name Error) also happened with earlier versions of Bind Thanks a lot! JM ___ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
