[Scottish] Strange DNS problem

[Allan Whiteford]

Ben,

If machines won't respond to pings to their IP numbers then chances are
DNS is the least of your problems. If it happens again try pinging
something independent like:

216.239.55.100 (google, btw).

If it doesn't respond then you have bigger problems than DNS.

Thanks,

Allan

Ben Thorp wrote:
> 
> This time round I tried to ping the 3 nameservers in /etc/resolv.conf - 2
> from ntlworld, 1 from freenetname - and none of them were responding to a
> ping: 100% packet loss. I also looked in /var/log/messages and a couple of
> other places, but couldn't see much unusual (or rather, that I recognised
> as unusual ;o)
> 
> It's probably time I upgraded to Slack 8.1 anyway.
> 
> mrBen
> 
> 
>                       colin@wew.co.uk
>                       Sent by:                      To:       scottish@mailman.lug.org.uk
>                       scottish-admin@mailman        cc:
>                       .lug.org.uk                   Subject:  RE: [Scottish] Strange DNS problem
> 
> 
>                       29/08/02 12:03
>                       Please respond to
>                       scottish
> 
> 
> 
> andrew wrote:
> >On Thu, Aug 29, 2002 at 11:39:17AM +0100, Ben Thorp wrote:
> >> This month I
> >> have been running Firestarter firewall, but last month I didn't even
> know
> >> about it. Other than that, everything is the same. And the problem
> resolved
> >
> > Ah, that firewall only works with prodigy internet :-)
> >
> 
> Ouch.
> 
> I assume no indication of port 53 packets getting blocked in the kernel
> log?
> 
> Maybe it's just random weirdness, Ben, but I'd be tempted to note down a
> few key IP addresses (dotted quads, e.g. nameservers, systems which will
> respond to pings on your ISPs subnet, systems beyonfd that) to test it
> out if it goes down again next month.
> 
> HTH
> 
> Colin
> 
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-- 
Programming today is a race between software engineers striving to build
bigger and better idiot-proof programs, and the Universe trying to
produce
bigger and better idiots. So far, the Universe is winning.