[iyonix-support] Re: Iyonix network lock out

> In article <9b33e57d52.Alan.Adams@xxxxxxxxxxxxxxxxxxxxxxx>,
>    Alan Adams <alan@xxxxxxxxxxxxxxxx> wrote:
>> Let's see if I understand your setup.
>
>> There's a cable broadband connection to a modem. The modem connects to
>> a router. All your machines connect to the router.
>
>> The cable connection is flaky.
>
>> Pulling the cables out anywhere doesn't simulate the fault.
>
> Correct.
>
>> When the cable connection goes down your Iyonix freezes, if, and only
>> if, it was using the connection at the time.
>
> Sometimes the Iyonix freezes completely, sometimes its network interface
> becomes unusable but the machine can still be used. Sometimes it behaves
> like the other machines.
>
>> The other machines do what in this situation? wait? report error?
>
> Time out and then report they can't lookup the hostname or can't connect
> to the host.
>
> They will still be able to ping each other and the router, sometimes
> even the modem if that hasn't started to rebuild the connection yet (it
> can take several minutes before the modem realises the CMTS has dropped
> the connection).
>
> Oddly enough the connection is now nearing 48 hours of uninterrupted
> uptime. It's really starting to look like the ISP has fixed things at
> their end.
>
> Regards,
> Frank

How is your DNS configured on the iyonix?

The way DNS works is that it always uses the first configured server
unless it is unreachable, when it tries the next one. It should timeout
after 2 minutes if there is no response. My suspicion is that it cannot
connect to the first server, but fails to time-out the connection.



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