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DNS noise
- Subject: DNS noise
- From: nathan at atlasnetworks.us (Nathan Eisenberg)
- Date: Fri, 6 Apr 2012 17:41:48 +0000
Anyone else seeing this sort of noise lately?
10:35:00.958556 IP 72.20.23.24.53 > 66.171.180.48.53: 952+ [1au] ANY? ripe.net. (38)
10:35:00.961055 IP 72.20.23.19.53 > 66.171.180.48.53: 952+ [1au] ANY? ripe.net. (38)
10:35:01.262461 IP 72.20.23.19.53 > 66.171.180.48.53: 952+ [1au] ANY? ripe.net. (38)
10:35:01.350979 IP 72.20.23.24.53 > 66.171.180.48.53: 952+ [1au] ANY? ripe.net. (38)
10:35:01.351001 IP 66.171.180.48 > 72.20.23.24: ICMP 66.171.180.48 udp port 53 unreachable, length 74
10:35:01.573166 IP 72.20.23.19.53 > 66.171.180.48.53: 952+ [1au] ANY? ripe.net. (38)
10:35:01.573204 IP 66.171.180.48 > 72.20.23.19: ICMP 66.171.180.48 udp port 53 unreachable, length 74
10:35:01.730128 IP 72.20.23.24.53 > 66.171.180.48.53: 952+ [1au] ANY? ripe.net. (38)
10:35:01.970730 IP 72.20.23.19.53 > 66.171.180.48.53: 952+ [1au] ANY? ripe.net. (38)
10:35:02.121218 IP 72.20.23.24.53 > 66.171.180.48.53: 952+ [1au] ANY? ripe.net. (38)
10:35:02.374853 IP 72.20.23.19.53 > 66.171.180.48.53: 952+ [1au] ANY? ripe.net. (38)
10:35:02.374879 IP 66.171.180.48 > 72.20.23.19: ICMP 66.171.180.48 udp port 53 unreachable, length 74
10:35:02.493257 IP 72.20.23.24.53 > 66.171.180.48.53: 952+ [1au] ANY? ripe.net. (38)
10:35:02.493270 IP 66.171.180.48 > 72.20.23.24: ICMP 66.171.180.48 udp port 53 unreachable, length 74
10:35:02.726303 IP 72.20.23.19.53 > 66.171.180.48.53: 952+ [1au] ANY? ripe.net. (38)
10:35:02.863667 IP 72.20.23.24.53 > 66.171.180.48.53: 952+ [1au] ANY? ripe.net. (38)
10:35:03.023693 IP 72.20.23.19.53 > 66.171.180.48.53: 952+ [1au] ANY? ripe.net. (38)
10:35:03.251935 IP 72.20.23.24.53 > 66.171.180.48.53: 952+ [1au] ANY? ripe.net. (38)
10:35:03.251964 IP 66.171.180.48 > 72.20.23.24: ICMP 66.171.180.48 udp port 53 unreachable, length 74
10:35:03.326562 IP 72.20.23.19.53 > 66.171.180.48.53: 952+ [1au] ANY? ripe.net. (38)
10:35:03.630514 IP 72.20.23.24.53 > 66.171.180.48.53: 952+ [1au] ANY? ripe.net. (38)
10:35:03.638327 IP 72.20.23.19.53 > 66.171.180.48.53: 952+ [1au] ANY? ripe.net. (38)
Note that the server involved does not run a DNS daemon, or listen on 53, or anything else that would attract attention.
- Follow-Ups:
- DNS noise
- From: keegan.holley at sungard.com (Keegan Holley)
- DNS noise
- From: nick at foobar.org (Nick Hilliard)