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 'faulty' cable! Today, everything is working, but I
haven't connected the Pi to the network yet (the first thing I did yesterday
was to remove it, with no effect).
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 :)
Can anyone think of any reason for this event? Is it possible that the Pi
caused this? Does Cat 5 stop carrying Ethernet packets in hot weather :-)
This last question is only partially serious, but the cable does run around
the outside of the house.
I haven't come across any issues with hot weather and and ethernet
cables, $previousdayjob had cables outside for a wireless install and
hot weather didn't seem both them. The wet weather however did, although
that was due to them not using external CAT5 cable and it allowed water
to get in and run down the cable to the switch, causing them to replace
the cables with external rated cable.
If the weather was hot enough to melt the cables then I would expect it
to stop working completely or have packet loss due to errors across the
board rather than stopping a single site from working.
The issue looks to be that DNSSEC was removed from raspberrypi.org, the
signed records were removed from the raspberrypi.org name servers before
.org's servers stopped telling everyone that the zone was signed and
before the cached records expired. (
https://twitter.com/Mythic_Beasts/status/1011827917960155136 ) This
caused raspberrypi.org to fail DNSSEC validation and your resolver would
have been returning a servfail.
Assuming the cached records have expired by now, it should be working again.
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