Re: NT vulnerable to attack on CPU

David Bezold (bezold@tc.fluke.com)
Fri, 20 Dec 1996 08:42:30 -0800


On Thu, 19 Dec 1996, Oskar Pearson wrote:

>
> > _Old problem _
> >
> > Hogging the CPU is one of the oldest known forms of denial of service
> > attack. So old, in fact, that many operating systems have developed a
> > defense. Many forms of Unix allow administrators to set limits on CPU
> > usage by user - limiting any one user to 50 percent of available CPU
> > cycles, for example.
> >
> > Almost all forms of Unix also automatically decrease the priority of
> > the highest-priority processes when applications become starved for
> > CPU time, which is the opposite of what Windows NT does.
> >

Once again bitten by insisting on re-inventing Unix and doing so badly.

-Dave

--
David Bezold                                      Fluke Corporation
bezold@tc.fluke.com                           PO Box 9090  M/S 279F
Fluke Networks Engineering                Everett WA USA 98206-9090