[TriLUG] OT: RR Networking Question
lfwelty
lfwelty at redback.com
Thu Apr 11 09:06:56 EDT 2002
I've found RR's DNS servers to be heavily, heavily used
and spotty at times. Try sniffing out some of their other
DNS servers and use them as secondary/tertiary name servers.
Additionally rememember that cable modem's are a shared
resource. If many of your neighbors are also online and
actively surfing, you may notice a slowdown. I live near
NC State. I suspect my pipe is heavily used, sunday evenings
seem particularly bad. But that may not explain your
intermittent slow down.
F.
"M. Mueller" wrote:
>
> On Thursday 11 April 2002 03:04 am, you wrote:
>
> > I went from pinging one of the DNS server with ~ 100ms speed to anywhere
> > from 500ms to 20,000ms (Typically in the 1,000 to 8,000 range). I
> > haven't figured out how to prove there is a problem as I can hook it up
> > to a windows box, but it may not occur while they are in the home. It
> > doesn't seem to be the OpenBSD system as I have switched systems and
> > nics and the situation still occurred (From one OBSD system, to
> > installing another and using it. I had planned on switching them out
> > previously).
> >
> > Anyone seen this or have any ideas? I can't find any errors in the
> > cable modem's logs and it doesn't seem likely that it is my system as
> > when I power cycle the modem and restart networking everything returns
> > to normal for a random amount of time...
> >
> > Any suggestions would be appreciated so I am ready for the tech :)
>
> I have Earthlink DSL. The DNS servers take a break every now and then.
> There are two servers, so I ping one and then the other and compare. I don't
> know a lot about DNS but they seem to throttle every request you make - even
> if you "ping 222.111.55.2" for example, the DNS will look "222.111.555.2" up
> and you will take a delay. Maybe the DNS is doing its maintenance updates
> when you are slowing down? When you are in the slowdown mode, go to
> /etc/resolv.conf and comment out the DNS servers and add "search
> localdomain", then ping an outside IP address (outside your LAN). If there's
> no slow down, then maybe the slowdown is coming from the DNS.
>
> --
> Michael Mueller
> Signalnetware, Inc.
> www.signalnetware.com
> 919.621.6090
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