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North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: Interesting BIND error
On Thu, February 12, 2004 4:52 pm, Brian Wallingford said: > > We've been seeing the following on all of our (9.2.1) authoritative > nameservers since approximately 10am today. Googling has turned up > nothing; I'm currently trying to glean some useful netflow data. Just > wondering if this is local, or if others have suddenly seen the same. > > Seems harmless enough, but the logging is eating a disproportionate amount > of cpu. > > > Feb 12 16:25:07 ns1 named[3150]: internal_send: 244.254.254.254#53: > Invalid argument Its possible that someone is spoofing UDP packets to your nameserver from that IP range (which is IANA reserved space). It looks like BIND is refusing to send to that address, and thus the error. At least, IMHO. So I could be wrong :) -- Brian Bruns The Summit Open Source Development Group Open Solutions For A Closed World / Anti-Spam Resources http://www.sosdg.org The AHBL - http://www.ahbl.org
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