Re: [kvm-devel] kvm.qumranet.com uncontactable?

2007-08-14 Thread Alistair John Strachan
On Monday 13 August 2007 09:43:51 Avi Kivity wrote:
 Luca wrote:
  On 8/12/07, Avi Kivity [EMAIL PROTECTED] 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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Re: [kvm-devel] kvm.qumranet.com uncontactable?

2007-08-12 Thread 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-devel] kvm.qumranet.com uncontactable?

2007-08-12 Thread Luca
On 8/12/07, Avi Kivity [EMAIL PROTECTED] 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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