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Re: [cobalt-users] approved AXFR



On Wed, Dec 05, 2001 at 06:41:15PM -0000, Ben Liddicott wrote:
> It means that that IP address asked your DNS server for a domain transfer, i.e., to list all names in the domain.
> 
> It's harmless, and probably means someone has used the dig tool.
> 

Ben,

  Agree - but......

  It is probably "harmless" unless you are hosting quite a few
  domains under your DNS and then it means that they have
  "pulled" (copied) your entire DNS structure to their machine so
  they know all your IP's, server names, aliases, cnames, etc.

  While all this information is "publicly" available, it is
  generally thought of very "un-kindly" for someone to actually
  "copy" your entire configuration unless they are an upstream
  provider that does secondary DNS for you.  And that does not
  even include all the "possible" security implications....
  (EG: why probe random IP's when you have a list...)

Larry Smith
SysAd ECSIS.NET
sysad@xxxxxxxxx