Re: [Dorset] Strange Network Behaviour

2018-06-27 Thread Terry Coles
On Wednesday, 27 June 2018 10:46:19 BST David Wilkinson wrote: > I'm surprised the ISP blamed the cable when only one site had an issue. > I can't think of how they came that conclusion. > Maybe they thought the cable had became sentient and look a dislike to > raspberrypi.org :) So was I! I was

Re: [Dorset] Strange Network Behaviour

2018-06-27 Thread David Wilkinson
On 26/06/18 09:56, Terry Coles wrote: To cut a long story short, after multiple experiments and conversations with my ISP, I was told that the Ethernet cable (shared with the Pi through a switch was faulty. This, despite the fact that I could get to the Home Router admin page through this 'fault

Re: [Dorset] Strange Network Behaviour

2018-06-26 Thread Terry Coles
On Tuesday, 26 June 2018 17:52:49 BST Ralph Corderoy wrote: > The PoS doesn't broadcast a DNS request, but sends it to its configured > DNS servers, none of which should be router-pi's Internet-side interface > and so it won't even see packet. If PoS had the router-pi's > captive-side IP address a

Re: [Dorset] Strange Network Behaviour

2018-06-26 Thread Ralph Corderoy
Hi Terry, > my concern wsa that if I got my routing tables wrong then my server > could respond to a DNS Request from the PoS equipment instead of the > ISP defined Routers. The PoS doesn't broadcast a DNS request, but sends it to its configured DNS servers, none of which should be router-pi's In

Re: [Dorset] Strange Network Behaviour

2018-06-26 Thread Terry Coles
On Tuesday, 26 June 2018 15:01:17 BST Ralph Corderoy wrote: > DNS for raspberrypi.org has been intermittently failing to resolve since > my last email. I wouldn't bother investigating your work whilst it's > still flaky. Yes. I've also found quite a few postings about it on the web. I agree wit

Re: [Dorset] Strange Network Behaviour

2018-06-26 Thread Ralph Corderoy
Hi Terry, > I can't connect to it again, even though the Pi hasn't been connected > since yesterday. I was connecting OK earlier today. So it's maybe > nothing to do with the Pi. DNS for raspberrypi.org has been intermittently failing to resolve since my last email. I wouldn't bother investiga

Re: [Dorset] Strange Network Behaviour

2018-06-26 Thread Terry Coles
On Tuesday, 26 June 2018 13:44:23 BST Ralph Corderoy wrote: > About fifteen minutes ago I couldn't open that URL from home, and dig(1) > couldn't resolve the domain name to an address to use. dig also failed > on a server in the USA. Now it's OK and I've changed nothing. Suggests > it's not you

Re: [Dorset] Strange Network Behaviour

2018-06-26 Thread Ralph Corderoy
Hi Terry, > https://www.raspberrypi.org/forums/viewtopic.php?f=36&t=215608&p=1332047#p1332067 > Chromium gave an error saying that the site was either down or had too > much traffic. I then went to my normal desktop PC and got the same > result. About fifteen minutes ago I couldn't open that URL

[Dorset] Strange Network Behaviour

2018-06-26 Thread Terry Coles
Hi, Can anyone shed any light on this? Yesterday afternoon I was logged into my WMT Webserver simulation (see http://www.hadrian-way.co.uk/Misc/Pi_Router/). My system was working as I described at the end of the thread 'Using a Raspberry Pi as a Network Router'. I was about to set up a DNS S