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Strange failings of internet services

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Date: Tue, 05 Mar 1996 08:36:07 -0600
From: "Todd K. Pedlar" <todd@xxxxxxxxxxxxxxxxxxx>
Reply-to: "Todd K. Pedlar" <todd@xxxxxxxxxxxxxxxxxxx>
Organization: Northwestern University
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Subject: Re: [Fwd: Strange failings of internet services]
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Todd K. Pedlar wrote:
 yesterday I wrote:
> Subject: Strange failings of internet services
> Date: Mon, 04 Mar 1996 18:02:09 -0600
  
> Something very strange started happening today on one of our Alphas (only
> on one of the four).  The internet services failed at one point today, so
> I reset them using /usr/sbin/rcinet restart.  That was fine, for about five
> minutes, when it failed again.  This has continued all day long - for about
> five minutes after an rcinet restart, the internet services go down.  This
> is only happening to one of our machines, which I find most unusual.  Now
> here is some background to let those gurus out there figure out what I've
> done.
> 
> Today I reconfigured a machine (b.b.b.b, formerly b.b.b.a) which we used to have
> in the group to have a different IP address and of course a different name.  The
> OLD IP address of this machine (b.b.b.b, formerly b.b.b.a) is the same as the one
> (currently called b.b.b.a) which is now failing .
> 
> I only noticed the strange failing of internet services after I booted
> up the reconfigured old machine.  Is there something that I might have done
> which has caused this problem?
> 
> Todd
> 
 
It turns out that the problem was in the subnet mask - I had previously
255.255.0.0 on the machine, and had to switch it to 255.255.255.0.  Making
this switch immediately cured the problem.

Thanks for your help and suggestions, esp to:

Dave Golden   <golden@xxxxxxxxxxxxxxxxxxxxx>
Tom Owano     <owano@xxxxxxxxxxxxxxxxx>
Stam Nicolis  <nicolis@xxxxxxxxxxxxxxxxxxxxxxxxx>
Knut Helleboe <Knut.Hellebo@xxxxxxxxxxxxx>


Cheers,

Todd

__________________________________________________________________________
Todd K. Pedlar                      !  Phones: (847)491-8630 (708)840-5264
Northwestern University             !  Fax:   (847)491-8627
Particle Physics                    !  Email:  todd@xxxxxxxxxxxxxxxxxxx
Fermilab Experiment E835            !          toddp@xxxxxxxxxxxxxx
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