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From: markp on 16 Dec 2009 08:33
I've just designed in a radio module RFM12B-433-S1 from hoperf
(www.hoperf.com). Now I cannot access the hoperf website. In fact
DNS doesn't resolve the name (either with my DNS servers or
online nslookup).

Should I be worried? This is a Chinese company and these modules seem to be
very popular. They might be changing servers I guess and Christmas is
probably a good time to do it, would this normally result in no DNS lookup
at all while they do it?

Mark.


From: Jan Panteltje on 16 Dec 2009 08:47
On a sunny day (Wed, 16 Dec 2009 13:33:07 -0000) it happened "markp"
<map.nospam(a)f2s.com> wrote in <7os5q4F3qsetoU1(a)mid.individual.net>:

>I've just designed in a radio module RFM12B-433-S1 from hoperf
>(www.hoperf.com). Now I cannot access the hoperf website. In fact
>DNS doesn't resolve the name (either with my DNS servers or
>online nslookup).
>
>Should I be worried? This is a Chinese company and these modules seem to be
>very popular. They might be changing servers I guess and Christmas is
>probably a good time to do it, would this normally result in no DNS lookup
>at all while they do it?
>
>Mark.

I get an error message too, but:
# host www.hoperf.com
# Host www.hoperf.com not found: 3(NXDOMAIN)

# host hoperf.com
hoperf.com has address 121.199.253.175
hoperf.com mail is handled by 10 mx.hoperf.com.

So, typing 121.199.253.175 gets a Chinese site.
With very little info.

From: markp on 16 Dec 2009 08:56
>>I've just designed in a radio module RFM12B-433-S1 from hoperf
>>(www.hoperf.com). Now I cannot access the hoperf website. In fact
>>DNS doesn't resolve the name (either with my DNS servers or
>>online nslookup).
>>
>>Should I be worried? This is a Chinese company and these modules seem to
>>be
>>very popular. They might be changing servers I guess and Christmas is
>>probably a good time to do it, would this normally result in no DNS lookup
>>at all while they do it?
>>
>>Mark.
>
> I get an error message too, but:
> # host www.hoperf.com
> # Host www.hoperf.com not found: 3(NXDOMAIN)
>
> # host hoperf.com
> hoperf.com has address 121.199.253.175
> hoperf.com mail is handled by 10 mx.hoperf.com.
>
> So, typing 121.199.253.175 gets a Chinese site.
> With very little info.
>

Thanks for confirming. Yes, I actually found that site too while doing a
lookup, some wierd Chinese homepage! I'm hoping they have just changed
servers and DNS is currently broken, and that they haven't gone out of
business. This radio module is the best and cheapest I've found, it's great.
Fingers crossed...

Mark.


From: markp on 16 Dec 2009 16:08

"markp" <map.nospam(a)f2s.com> wrote in message
news:7os5q4F3qsetoU1(a)mid.individual.net...
> I've just designed in a radio module RFM12B-433-S1 from hoperf
> (www.hoperf.com). Now I cannot access the hoperf website. In fact
> DNS doesn't resolve the name (either with my DNS servers or
> online nslookup).
>
> Should I be worried? This is a Chinese company and these modules seem to
> be
> very popular. They might be changing servers I guess and Christmas is
> probably a good time to do it, would this normally result in no DNS lookup
> at all while they do it?
>
> Mark.
>

Phew, it's back. Funnily none of the online nslookup services could find it
either using their own servers, but at least my DNS servers can again. Maybe
an outage at their hosting company (?).

Mark.


From: Jan Panteltje on 16 Dec 2009 17:16
On a sunny day (Wed, 16 Dec 2009 21:08:18 -0000) it happened "markp"
<map.nospam(a)f2s.com> wrote in <7ot0fkF3rhg99U1(a)mid.individual.net>:

>
>"markp" <map.nospam(a)f2s.com> wrote in message
>news:7os5q4F3qsetoU1(a)mid.individual.net...
>> I've just designed in a radio module RFM12B-433-S1 from hoperf
>> (www.hoperf.com). Now I cannot access the hoperf website. In fact
>> DNS doesn't resolve the name (either with my DNS servers or
>> online nslookup).
>>
>> Should I be worried? This is a Chinese company and these modules seem to
>> be
>> very popular. They might be changing servers I guess and Christmas is
>> probably a good time to do it, would this normally result in no DNS lookup
>> at all while they do it?
>>
>> Mark.
>>
>
>Phew, it's back. Funnily none of the online nslookup services could find it
>either using their own servers, but at least my DNS servers can again. Maybe
>an outage at their hosting company (?).
>
>Mark.

The same happens with my site when I switch the server off, as the name server,
the authoritive one, that tells everybody where my site is (its IP address),
also runs on this same server.
That is the way DNS can work, not everybody needs an ISP to run a 'named'.
A bit strange that hoperf.com (without the www) was resolved though.
Could also be their named was victim of some attack.
BTW 'named' is a program.
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