[ratelimits] error in amplification attack

Lyle Giese lyle at lcrcomputer.net
Tue Nov 13 16:38:30 UTC 2012


I am seeing this in our logs now:

Nov 12 07:36:24 linux named[18188]: client 199.59.163.143#63663: view 
external: query (cache) 'lcrcomputer/ANY/IN' denied
Nov 12 07:36:24 linux named[18188]: client 199.59.163.143#9119: view 
external: query (cache) 'lcrcomputer/ANY/IN' denied
Nov 12 07:36:24 linux named[18188]: client 199.59.163.143#33665: view 
external: query (cache) 'lylegiese/ANY/IN' denied
Nov 12 07:36:24 linux named[18188]: client 199.59.163.143#54595: view 
external: query (cache) 'lcrcomputer/ANY/IN' denied
Nov 12 07:36:24 linux named[18188]: client 199.59.163.143#11802: view 
external: query (cache) 'lcrcomputer/ANY/IN' denied
Nov 12 07:36:24 linux named[18188]: client 199.59.163.143#13852: view 
external: query (cache) 'lcrcomputer/ANY/IN' denied

It would appear that they are missing the .<suffix>.  I don't know what 
reply my server gives back in this case.  Would it be of any use to 
apply rate limiting to this case also?

Thank,
Lyle Giese
LCR Computer Services, Inc.



More information about the ratelimits mailing list