North American Network Operators Group

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Re: Question about strain on the A root server

  • From: Dirk Harms-Merbitz
  • Date: Sat Apr 22 12:41:31 2000

We are seeing a small number of machines that almost do DOS
attacks so many hits are being requested.

It started a few months ago. The number of machines that do
this seems to be slowly increasing.

Could this be a configuration problem in some companies new
DNS server software?


On Sat, Apr 22, 2000 at 11:56:37AM -0400, Nick Patience wrote:
> Hi all,
> Disclosure: I'm a journalist with a company called (details in
> sig file).
> Anyhow, that said, I was talking to Network Solutions about their decision
> to swap out the Sun box that is the A root server and change it for a more
> powerful RS/6000 S80. Also it is using IBM servers for its new network of
> name servers - it has already deployed 8 of the intended 12 according to the
> company, including one brought on stream two days ago in Hong Kong.
> As most on this list probably already know, it is separating the root
> servers from the name servers.
> Anyhow, NSI claims that the strain on the A root server has jumped from 220
> million 'hits' to 420 million during Q1 alone. I haven't managed to define
> what hit is yet but intend to at some point.
> NSI seems slightly unsure as to the main reason for the increase in hits,
> but speculates that one of the reasons may be
> says the main reason for this is that ISP's are using different caching
> techniques and more & more searches are going right to the top of the tree
> than before.
> What do people on this list feel about this as a reason? It seems a little
> woolly to me.
> Cheers,
> Nick
> --
> Nick Patience
> Internet Editor & NY Dep. Bureau Chief
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