On 15.04.13 10:02, Jose Manuel Delgado G. wrote:
Subject: 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 version 9.9.2-P2 as recommended but still continuous problems.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 * ?
% host 201.224.83.242 242.83.224.201.in-addr.arpa domain name pointer ns5.cwpanama.net. inetnum: 190.34/15 status: allocated aut-num: N/A owner: Cable & Wireless Panama inetnum: 201.224/16 status: allocated aut-num: N/A owner: Cable & Wireless Panama they apparently expect your nameserver to provide resursive DNS service for your company while it may not be intended for that use... some customers (well, not only customers...) do not understand the difference between authoritative and recursive DNS service and may try to use servers for purpose not intended. Some may also complain if the service does not work properly if you want to be really a bitch, you can set up recursive view with "." domain providing * records. -- Matus UHLAR - fantomas, [email protected] ; http://www.fantomas.sk/ Warning: I wish NOT to receive e-mail advertising to this address. Varovanie: na tuto adresu chcem NEDOSTAVAT akukolvek reklamnu postu. REALITY.SYS corrupted. Press any key to reboot Universe. _______________________________________________ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list bind-users mailing list [email protected] https://lists.isc.org/mailman/listinfo/bind-users
