kvm.qumranet.com uncontactable?

kvm.qumranet.com uncontactable?

[Alistair John Strachan]

Hi there,

The site at kvm.qumranet.com seems to be inaccessible. My DNS comes directly 
from the root servers, so it is not a DNS issue on my end. I seem to be able 
to traceroute the domain, but a web browser will time out.

Supposedly, it's there, as my colleague in the US can access the site, but it 
does not work in the UK (on JANET). Netcraft.com cannot connect to it either.

Could somebody please look into this? Thanks.

-- 
Cheers,
Alistair.

137/1 Warrender Park Road, Edinburgh, UK.


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Re: kvm.qumranet.com uncontactable?

[Avi Kivity]

Alistair John Strachan wrote:
> Hi there,
>
> The site at kvm.qumranet.com seems to be inaccessible. My DNS comes directly 
> from the root servers, so it is not a DNS issue on my end. I seem to be able 
> to traceroute the domain, but a web browser will time out.
>
> Supposedly, it's there, as my colleague in the US can access the site, but it 
> does not work in the UK (on JANET). Netcraft.com cannot connect to it either.
>
> Could somebody please look into this? Thanks.
>
>   

I'm just back from travel in the US, and can confirm this.  From some
locations, it works well; from others it doesn't work at all; and when
the quantum state is just right you get half your packets dropped.

I suspect that we just have a bad ISP that doesn't peer well.  We'll
work to fix this.


-- 
Do not meddle in the internals of kernels, for they are subtle and quick to panic.


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Re: kvm.qumranet.com uncontactable?

[Luca]

On 8/12/07, Avi Kivity <avi-atKUWr5tajBWk0Htik3J/w@public.gmane.org> wrote:
> Alistair John Strachan wrote:
> > Hi there,
> >
> > The site at kvm.qumranet.com seems to be inaccessible. My DNS comes directly
> > from the root servers, so it is not a DNS issue on my end. I seem to be able
> > to traceroute the domain, but a web browser will time out.
> >
> > Supposedly, it's there, as my colleague in the US can access the site, but it
> > does not work in the UK (on JANET). Netcraft.com cannot connect to it either.
> >
> > Could somebody please look into this? Thanks.
>
> I'm just back from travel in the US, and can confirm this.  From some
> locations, it works well; from others it doesn't work at all; and when
> the quantum state is just right you get half your packets dropped.
>
> I suspect that we just have a bad ISP that doesn't peer well.  We'll
> work to fix this.

Seems more like a firewall or something like that. IP routing is ok, I
can reach the server (from Italy) just fine, but nothing responds
(nothing at *all*, not event a RST - the same behaviour of iptables
DROP target BTW).

Luca

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Re: kvm.qumranet.com uncontactable?

[Avi Kivity]

Luca wrote:
> On 8/12/07, Avi Kivity <avi-atKUWr5tajBWk0Htik3J/w@public.gmane.org> wrote:
>   
>> Alistair John Strachan wrote:
>>     
>>> Hi there,
>>>
>>> The site at kvm.qumranet.com seems to be inaccessible. My DNS comes directly
>>> from the root servers, so it is not a DNS issue on my end. I seem to be able
>>> to traceroute the domain, but a web browser will time out.
>>>
>>> Supposedly, it's there, as my colleague in the US can access the site, but it
>>> does not work in the UK (on JANET). Netcraft.com cannot connect to it either.
>>>
>>> Could somebody please look into this? Thanks.
>>>       
>> I'm just back from travel in the US, and can confirm this.  From some
>> locations, it works well; from others it doesn't work at all; and when
>> the quantum state is just right you get half your packets dropped.
>>
>> I suspect that we just have a bad ISP that doesn't peer well.  We'll
>> work to fix this.
>>     
>
> Seems more like a firewall or something like that. IP routing is ok, I
> can reach the server (from Italy) just fine, but nothing responds
> (nothing at *all*, not event a RST - the same behaviour of iptables
> DROP target BTW).
>   

Well, when our UDP VPN managed to connect, I saw a lot of packet loss, 
but connectivity was there, which is inconsistent with a firewall.  I'll 
ask that the rule restricting ICMP be removed so we can debug more easily.


-- 
error compiling committee.c: too many arguments to function


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Re: kvm.qumranet.com uncontactable?

[Alistair John Strachan]

On Monday 13 August 2007 09:43:51 Avi Kivity wrote:
> Luca wrote:
> > On 8/12/07, Avi Kivity <avi-atKUWr5tajBWk0Htik3J/w@public.gmane.org> wrote:
> >> Alistair John Strachan wrote:
> >>> Hi there,
> >>>
> >>> The site at kvm.qumranet.com seems to be inaccessible. My DNS comes
> >>> directly from the root servers, so it is not a DNS issue on my end. I
> >>> seem to be able to traceroute the domain, but a web browser will time
> >>> out.
> >>>
> >>> Supposedly, it's there, as my colleague in the US can access the site,
> >>> but it does not work in the UK (on JANET). Netcraft.com cannot connect
> >>> to it either.
> >>>
> >>> Could somebody please look into this? Thanks.
> >>
> >> I'm just back from travel in the US, and can confirm this.  From some
> >> locations, it works well; from others it doesn't work at all; and when
> >> the quantum state is just right you get half your packets dropped.
> >>
> >> I suspect that we just have a bad ISP that doesn't peer well.  We'll
> >> work to fix this.
> >
> > Seems more like a firewall or something like that. IP routing is ok, I
> > can reach the server (from Italy) just fine, but nothing responds
> > (nothing at *all*, not event a RST - the same behaviour of iptables
> > DROP target BTW).
>
> Well, when our UDP VPN managed to connect, I saw a lot of packet loss,
> but connectivity was there, which is inconsistent with a firewall.  I'll
> ask that the rule restricting ICMP be removed so we can debug more easily.

Seems to be working here again. Thanks.

-- 
Cheers,
Alistair.

137/1 Warrender Park Road, Edinburgh, UK.

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