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rr style scanning of non-customers

  • From: Kuhtz, Christian
  • Date: Fri Jun 13 22:16:11 2003


Hey gang,


Some ISPs, such as RR, appear to be implementing what I personally would consider quite aggressive approaches to guarding their network by implementing "proactive" scanning of non-customers, similar to what's described at


In this case, sending email to appears to trigger this scanning business (mind you, this is not about the scanning their subs biz; I don't care to get into that in this thread). 


But, the question is.. How many people here are doing this sort of thing?  And where does this stop, short of nmapping the entire box?


Some time ago, when Code Red first came around, discussions raged as to how to deal with it and other infestations of customer owned/operated equipment.  And this kind of is a different slant on the same issue.  Except that it goes quite a bit further than your own prefixes.


I'm not looking to start a flamewar, I'm interested in a discussion or consensus discovery of how far "proactive" tasks can/should/shouldn't go.






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