Re: [Dorset] LUG Meets World Cup.

[PeterMerchant via dorset]

On 27/06/18 09:56, Ralph Corderoy wrote:

Hi Terry,


Any dissenters?

If none shout by when I get a round tuit tomorrow,
I'll alter this email's signature, update the wiki,
and tell Nick who isn't subscribed to the list.

Cheers, Ralph.

Just a thunk for an alternative venue for some other time. There is a 
bar on the lower Parkstone road that I noticed a mention of somewhere 
the other day that has recently been refurbished, and I wonder if it 
would be convenient for others who are not so independent as us from 
Colehill/CM.- The Grasshopper?  Also the Sloop down at the Poole 
Roundabout.   I almost sense an exploratory trip coming up.



Peter


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Re: [Dorset] Strange Network Behaviour

[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 simply reporting what they said; 'just in case'.  ;-)

> 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.

Did they put in a drip loop?

I've used standard Cat 5 around this house for about 20 years now, with no 
problems that could be attributed to the cable.  At WMT we installed about 100 
m of armoured Cat 5, but around 30 m of that is buried and the rest is 
strapped to a fence.

 Completely irrelevant anecdote Warning: =

About 45 years ago, I was a young RN Artificer at RNAS Culdrose.  The squadron 
had installed a field telephone between the Line Office and the squadron 
buildings; a distance of around 2-300 metres.  For part of this distance the 
cables had been strapped to a barb wire fence.  This phone was very unreliable 
and as the 'Baby Tiff', I was given the job of sorting it out.  It didn't take 
long; the farmer had recently put his cows into the field on the other side of 
the fence and they quite liked the taste of the insulation.  :-)

==
 
> 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.

That's useful; so raspberrypi.org is maintained by 'Mythic Beasts'?  
Interesting name for a hosting company.

> Assuming the cached records have expired by now, it should be working again.

It wasn't first thing this morning, but it seems to be now.

-- 



Terry Coles



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Re: [Dorset] Strange Network Behaviour

[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 '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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Re: [Dorset] Random Chirp from Acer Aspire Revo R3700.

[Stephen Wolff]

Hi Ralph,

> Anyone here have an idea why this Acer Aspire Revo R3700 should have
> started chirping at random times, in clusters?  I'm assuming it's
> connected to the warm weather.

https://chirp.io/  ?!


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[Dorset] Random Chirp from Acer Aspire Revo R3700.

[Ralph Corderoy]

Hi,

Anyone here have an idea why this Acer Aspire Revo R3700 should have
started chirping at random times, in clusters?  I'm assuming it's
connected to the warm weather.

The noise is a very short `chirp', consistent in duration and pitch;
more deliberately generated rather than mechanical side-effect.  The PC
has a normal `BIOS beep' speaker, but I was wondering if it could be
from a secondary piezoelectric speaker, perhaps on the hard drive?

Speaking of which, the drive is a Hitachi Travelstar 5K500.B
HTS545016B9A300;  the two-page specification I found makes no mention of
noises.  The PC has an AMI BIOS, but I wouldn't expect any of its code
to be running once Linux has control as the kernel does it all itself
based on ACPI tables?

Recordings of `sensors' and `smartctl -x' over the days show no dramatic
change other than background temperature pushing them all up a bit.
Nothing unusual in the log files.

I'm not alone.  There are a few reports of noises like this on other
types of PC, and several of them suggest it comes from the hard-drive
area, e.g.
http://www.tomshardware.co.uk/forum/287497-31-this-beep-driving-crazy

Cheers, Ralph.

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Re: [Dorset] LUG Meets World Cup.

[Ralph Corderoy]

Hi Terry,

> Any dissenters?

If none shout by when I get a round tuit tomorrow,
I'll alter this email's signature, update the wiki,
and tell Nick who isn't subscribed to the list.

Cheers, Ralph.

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Re: [Dorset] LUG Meets World Cup.

[Terry Coles]

On Tuesday, 26 June 2018 17:24:54 BST Terry Coles wrote:
> I suggest that we take a poll on two alternatives (short term solution):
> 
> 1.  Cancel this months meeting.
> 
> 2. Postpone this months meeting until after the Football is finished (the
> Final is on the 15th).

So far I have counted six votes for Number 2 and mine makes it 7.  That's as 
many as we sometimes get for the Meeting, :-) so I suggest we postpone until 
the 17th.

(There were none for Number 1 as far as I'm aware, although when I emailed 
Paul off list he said that he could only do the 3rd, so I guess that counts as 
a 1 :-)  )

Any dissenters?

-- 



Terry Coles



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Re: [Dorset] LUG Meets World Cup.

[PeterMerchant via dorset]

On 25/06/18 08:59, Terry Coles wrote:

Should we put it to the vote?



I have received emails from Natalie and Tim W voting 2, and adding mine, 
that's 3 for a delayed start.


Cheers,
PeterM.

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