Re: [Dorset] I'm Having Trouble with apscheduler and pytz Under bullseye

2021-12-31 Thread Keith Edmunds
OK, so we've fixed the "I can't install zoneinfo" problem. I'll let
someone else battle whatever the remaining problem is.
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Re: [Dorset] I'm Having Trouble with apscheduler and pytz Under bullseye

2021-12-31 Thread Keith Edmunds
> No specific new error, just thsame as before.

Terry, I'm trying to help you here but you need to help me. Let's try one
more time: what error do you get when you try to import zoneinfo?

I get this:

$ ipython3 
Python 3.9.2 (default, Feb 28 2021, 17:03:44) 
Type 'copyright', 'credits' or 'license' for more information
IPython 7.20.0 -- An enhanced Interactive Python. Type '?' for help.

In [1]: import zoneinfo

In [2]: 

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Re: [Dorset] I'm Having Trouble with apscheduler and pytz Under bullseye

2021-12-31 Thread Keith Edmunds
I read all the replies in this thread but didn't see what error you got
when you tried to import zoneinfo.
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Re: [Dorset] I'm Having Trouble with apscheduler and pytz Under bullseye

2021-12-31 Thread Keith Edmunds
> when I tried to install zoneinfo it failed 

zoneinfo is part of the Python Standard Library, so you shouldn't need to
install it.

>   from zoneinfo import ZoneInfo 
> 
> to the program and still got the error.

What error do you get?
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Re: [Dorset] Problem Mounting Memory Stick on Raspberry Pi

2021-11-29 Thread Keith Edmunds
> $ sudo mount /dev/sda1 /media/usb/ -o uid=pi,gid=pi

Tell it the filesystem type (-t ext2) and then check in dmesg to see what
it doesn't like. Maybe your pi doesn't support ext2?
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Re: [Dorset] Xed V's Mousepad

2021-07-31 Thread Keith Edmunds
On Sat, 31 Jul 2021 10:31:41 +0100, zir...@xendistar.co.uk said:

> I have been trawling through an old MySQL database and as it archived 
> Archive Manager was using Xed to look at the file

What format is the file? (Hint: at command line, type 'file filename')

> In the end I did a simple CTRL-A of the whole data base and then copied
> and pasted it into Mousepad

Presumably you selected the whole of the database dump file rather than
the database?

> Was it faster pasting it into Mousepad simply because I had copied the 
> text out and into Mouse pad and xed was dealing all the SQL stuff. 

I've never used (or even heard of) Xed before today, but it doesn't seem
to deal with SQL. Do you mean syntax highlighting? If so, it's possible -
syntax highlighting will have a processing overhead, although I don't know
how efficient Xed is at doing that.

Some editors (eg, vim) will only process syntax for what's displayed;
others will parse the whole file. The latter approach will clearly be
slower on initial load, but faster to scroll.

How big is the dump file?
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Re: [Dorset] Chromium no Longer Stores Passwords on Kubuntu

2021-06-05 Thread Keith Edmunds
On Sat, 05 Jun 2021 12:28:36 +0100, d-...@hadrian-way.co.uk said:

> Are you using it as an extension or as a full installation into Linux?

Both.
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Re: [Dorset] Chromium no Longer Stores Passwords on Kubuntu

2021-06-05 Thread Keith Edmunds
On Sat, 05 Jun 2021 10:40:22 +0100, d-...@hadrian-way.co.uk said:

> first bitwarden has to be explicitly unlocked each time the browser is used.

Each time the browser is restarted, not each time it's used.

> The second issue is that it doesn't work when logging in to Google
> itself. Unlike most sites, the login process for Google is two part;
> enter the email address, click Next and then enter the password.  I
> think the problem is that bitwarden knows nothing about the two step
> process and so offers the email address at the password step.

I've had it work successfully on that kind of login, but next time I'll
pay more attention to how it works.
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Re: [Dorset] Chromium no Longer Stores Passwords on Kubuntu

2021-06-05 Thread Keith Edmunds
On Sat, 5 Jun 2021 10:19:56 +0100, petermerch...@hotmail.com said:

> to see if it works across multiple devices

It does. I'm using it on two Linux systems, my MacBook and my Android
phone.
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Re: [Dorset] Chromium no Longer Stores Passwords on Kubuntu

2021-06-05 Thread Keith Edmunds
On Fri, 04 Jun 2021 12:22:42 +0100, d-...@hadrian-way.co.uk said:

> I'm left with two choices; post a bug on Launchpad or abandon Chromium.

Or use something like Bitwarden. Open Source, runs on Linux, Windows, Mac,
Android, IoS. Automatically syncs. Can be self-hosted if you're
paranoid, but you don't need to. And your passwords belong to you, not
Google or Mozilla. https://bitwarden.com/
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Re: [Dorset] Monitor Pings on WiFi Interface

2021-05-28 Thread Keith Edmunds
Smokeping is a daemon, so no X needed. The (optional) display is simply a
web page, so no X needed. The notifications don't need X.
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Re: [Dorset] Monitor Pings on WiFi Interface

2021-05-28 Thread Keith Edmunds
Smokeping is your friend: https://oss.oetiker.ch/smokeping/

Demo: https://oss.oetiker.ch/smokeping-demo/?target=Customers.OP

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Re: [Dorset] Android (6) and Tesco shopping app.

2021-05-26 Thread Keith Edmunds
There are apps you can get that will allow you specify the orientation for
each app you run as well as a default orientation. You can even force
"portrait only" apps to run in landscape, and vice versa.
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Re: [Dorset] Links from 2021-05-04's Pub Meet.

2021-05-20 Thread Keith Edmunds
Nice summary, thank you Ralph.
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Re: [Dorset] SSD system

2021-03-12 Thread Keith Edmunds
On Fri, 12 Mar 2021 12:59:55 +, gra...@gemmill.name said:

> 1.    I understand that the BTR file system may be better than ext4 for 
> SSDs

Not heard that before. All our SSD systems run on ext4. What problem is
"better" solving for you?

> #rsync -av /opt/ /mnt/nasdata/ >/mnt/nasdata/opt.txt
> #rsync -av /local/ /mnt/nasdata/ >/mnt/nasdata/local.txt
> $rsync -av /virt/ /mnt/nasdata/ >/mnt/nasdata/virt.txt

That will put all files and directories from the three sources all
together in /mnt/nasdata. That probably isn't what you want: you may
prefer to omit the trailing slash from the source directories, which will
then rsync the directories themselves rather than their contents.

Overall, I'd say you're doing what's easily done: you're over-thinking it.
An SSD system mostly doesn't need to be treated any differently to a
rotating disk one.
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Re: [Dorset] Failure of wireless connections again.

2021-03-11 Thread Keith Edmunds
On Thu, 11 Mar 2021 17:48:20 +, ci...@cewland.uk said:

> Thinking of reporting this to Talktalk if it happens in 2 weeks time 
> again; or am I wrong in thinking it's their fault?

I think you're wrong in thinking that TalkTalk will care in the sligtest,
to be honest. TalkTalk have a deserved poor reputation; my advice (harsh,
but I'd like to think fair): either put up with it or change ISP.
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Re: [Dorset] stdout and stderr redirection weirdness

2021-02-18 Thread Keith Edmunds
OK, this is what I would do. Check whether logger (typically
/usr/bin/loggger) is installed on the system. If it is, create a script
that runs at boot as follows:

#!/bin/ash [if /bin/bash is available, I'd use that]

/usr/bin/logger -t xyzzy "SHELL=$SHELL"
/usr/bin/logger -t xyzzy "me=$(whoami)"
echo "test" > /tmp/me.log
/usr/bin/logger -t xyzzy "Status after file write: $?"

What that does:

 - /usr/bin/logger makes entries in syslog, so no need to worry about
   writing files

 - "-t xyzzy" will tag each syslog entry with "xyzzy". Of course you can
   use any string, but that allows you to 'grep xyzzy /var/log/messages'
   (or wherever syslog writes)

 - we check the shell (is it really ash?)

 - we check who we are (are we really root?)

 - we try writing to a file and report the status of doing so

Just looking at your original post, the other thing I'd change is the
relative file reference. Rather than writing to ../stdout.log, just write
to /tmp/stdout.log. Better still:

python3 ./main.py --id "NAS" 2>&1 | tee /usr/bin/logger -t xyzzy

...and have it sent to syslog.

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Re: [Dorset] stdout and stderr redirection weirdness

2021-02-18 Thread Keith Edmunds
> I'm finding that during startup piping and redirecting output doesn't
> work. This is using the ash shell from busybox.

By "during startup" do you mean system startup or your process startup?
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Re: [Dorset] Terminate a Python Program Conditionally (or Alternatively Trace a Running Program)

2021-02-12 Thread Keith Edmunds
Have you tried debugging with pdb? I'd put a breakpoint where the code
stops the player, then step through it from there. If you're not familiar
with that technique it would be helpful for you to understand the
difference between the debugger commands 'next' and 'step'.

Let us know how you get on.
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Re: [Dorset] Wireless dropping out

2021-02-11 Thread Keith Edmunds
On Thu, 11 Feb 2021 12:45:46 +, ci...@cewland.uk said:

> To answer your question 'no' the only Fluorescent or microwave is in the 
> kitchen which is not in line of sight; it's off to one side by 6m+ and 
> has 2 extra walls between them and the router.  Never had a problem 
> before like that.

Sounds like that's not the problem, BUT don't make the mistake of deciding
what isn't causing this until you know what is.
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Re: [Dorset] Wireless dropping out

2021-02-11 Thread Keith Edmunds
Do you have either a fluorescent light or a microwave over anywhere near
the wifi transmitter or receiver?
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[Dorset] Linux job

2021-02-09 Thread Keith Edmunds
If anyone's interested in working with Linux every day, we're recruiting:
https://www.tiger-computing.co.uk/linux-support-consultant-211/

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Re: [Dorset] Microsoft on Raspberry Pi

2021-02-06 Thread Keith Edmunds
On Sat, 6 Feb 2021 10:54:41 +, petermerch...@hotmail.com said:

> Of course I am aware that M$ now owns Git, and this seems to me to be
> underhanded extending their reach.

Microsoft does not own git.

Do we have to refer to "Microsoft" as "M$"? Seems unnecessary.
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Re: [Dorset] Problem with 'full' Root partition

2021-01-31 Thread Keith Edmunds
On Sun, 31 Jan 2021 10:15:59 +, ci...@cewland.uk said:

> Is there a command to show files in root and there sizes?  I tried 'ls' 
> but that lists only my home folder.

'ls' will list the directory you're in unless you pass an argument. So, if
you're in your home directory:

$ ls   [list your home directory]
$ ls /var  [list contents of /var]

You may not have permission to read the contents of other directories (for
that you may need 'sudo ls' or you can be root).

> Tried sudo cd/ no command, not found!

You need a space between the command ('cd') and the argument ('/'), so 

cd /

You don't need sudo for that command. You're allowed to cd to /, and
you'll even be able to see the directories there. You may need sudo to see
inside some directories.

> 'usr' seems to be large at 5.1GB last date modified 13 Dec2019 well 
> before this problem started so unlikely to be the problem?

5GB for /usr sounds about right.

Try this:

$ cd /
$ sudo du -sh * | sort -h

That will show the size of each directory in root in size order. Let's say,
for the sake of example, that /var is the biggest. Then you do:

$ cd /var
$ sudo du -sh * | sort -h

Now you can see which directories in /var are the biggest. You can repeat
the above to find the directories taking the most space.
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Re: [Dorset] Problem with 'full' Root partition

2021-01-29 Thread Keith Edmunds
On Fri, 29 Jan 2021 15:16:43 +, ci...@cewland.uk said:

> Thanks.  I've taken a copy as 'Root' into my /home/copyvartmp folder; 
> had to enter each folder a root.

You could have just (either as root or with 'sudo' in front):

# cp -a /var/tmp/* /home/copyvartmp

That would copy all files and folders under /var/tmp.

> what's putting them in there? And how can I stop it happening[?]

Well, those two questions are related. I don't know how flatpack works -
I've never used it, but maybe someone else can help (Ralph?). Generally,
/var/tmp is used for ephemeral files.
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Re: [Dorset] Problem with 'full' Root partition

2021-01-29 Thread Keith Edmunds
On Fri, 29 Jan 2021 13:04:35 +, ci...@cewland.uk said:

> 12G /tmp/var

I suspect you mean '/var/tmp'

You're unlikely to need anything in there. Take a look first, but probably
safe to delete.

If you want to take a copy just in case, you could copy to somewhere on
/home (but delete it later if you don't need it).
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Re: [Dorset] Problem with 'full' Root partition

2021-01-28 Thread Keith Edmunds
On Thu, 28 Jan 2021 18:38:21 +, ci...@cewland.uk said:

> If I can't find out what is happening then I'll re-install Mint 19.2 

Clive, you really, really do not need to reinstall Mint.

Files in /var/tmp are, generally speaking, safe to delete. The key
difference between /tmp and /var/tmp is that, by default, the former is
emptied on each boot but the latter isn't.

I may have missed it earlier, but the output of the following commands may
help:

$ df -h
$ sudo du -sh /var/*
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Re: [Dorset] Flask web development book

2021-01-23 Thread Keith Edmunds
It's all available online (I think it's close to the same as the book):
http://blog.miguelgrinberg.com/post/the-flask-mega-tutorial-part-i-hello-world

And it's excellent.
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Re: [Dorset] Using Flask to render a set of Buttons.

2021-01-22 Thread Keith Edmunds
On Fri, 22 Jan 2021 13:06:23 +, d-...@hadrian-way.co.uk said:

> One annoying thing when it comes to textbooks is that you cannot copy
> the text in any Kindle type, so you have to type the code by hand.

Install the Kindle Optimizer Pro Chrome extension. Works very well. "Adds
Google Search, Translate, Copy, Text to Speech, and Alarm functionality to
the Kindle Cloud Reader."
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Re: [Dorset] Using Flask to render a set of Buttons.

2021-01-21 Thread Keith Edmunds
I don't know how well you know Flask, Terry, but this is an excellent
intro. It's not going to be the immediate answer to your question, though.

http://blog.miguelgrinberg.com/post/the-flask-mega-tutorial-part-i-hello-world
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Re: [Dorset] Recommendations for webcam?

2021-01-08 Thread Keith Edmunds
I'm using a Logitech C270 HD Webcam under Debian and it works perfectly.
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Re: [Dorset] Migrating from VirtualBox to KVM/QEMU with virt-manager

2020-12-17 Thread Keith Edmunds
On Thu, 17 Dec 2020 16:34:22 +, hamis...@live.co.uk said:

> a way to move an activated Windows
> install without deactivating it? Mine is an OEM copy

You cannot (officially, at least) move OEM Windows to any other device.
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Re: [Dorset] Issues with mpg321 / mpg123 - Part 2

2020-12-05 Thread Keith Edmunds
On Sat, 05 Dec 2020 12:08:38 +, d-...@hadrian-way.co.uk said:

> I think that is unworthy of you.

Terry, I'm not looking for fight. Sorry if I offended.
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Re: [Dorset] Issues with mpg321 / mpg123 - Part 2

2020-12-05 Thread Keith Edmunds
On Sat, 05 Dec 2020 11:43:50 +, d-...@hadrian-way.co.uk said:

> > It's Open Source software. If it doesn't scratch your itch, fix it.  
> 
> Well maybe I would if I could.

Ah, the standard response to the joys of Open Source software.

You might not want to fix it, but you almost certainly could. It would
take time, effort, maybe tears, - like most things in life worth
achieving - but you could do it.

At least be honest and say you don't want to fix it badly enough to
actually do it.
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Re: [Dorset] Issues with mpg321 / mpg123 - Part 2

2020-12-05 Thread Keith Edmunds
On Sat, 05 Dec 2020 11:05:01 +, d-...@hadrian-way.co.uk said:

> I can't see why anyone would want to do that.

Millions of people can't understand why anyone would want to run Linux on
their everyday PC. Does that make them right?

> Hmmm.  So the author thinks legions of people will want to play the
> individual tracks multiple times but not loop the entire playlist like
> every MP3 Player I've ever used.
> 
> I can't see why anyone wouldn't want to do that.

It's Open Source software. If it doesn't scratch your itch, fix it.
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Re: [Dorset] Issues with mpg321 / mpg123 - Part 2

2020-12-05 Thread Keith Edmunds
How about:

while :;do
mpg123 -m --list playlist1.txt
done

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Re: [Dorset] funny in python software

2020-11-12 Thread Keith Edmunds
I've never used Kate (vim for me), but it sounds as if it is
syntax-highlighting 'connect' in one file and not the other. That suggests
either something else has changed so that 'connect' doesn't make sense, or
there may be some non-visual problem with 'connect' (eg, an 8bit char in
there or - silly examples - you've put "Connect" or "c0nnect" or something
like that).

Do you know / can you find out what blue highlighting means? Or - shudder
- can you open the file in (g)vim and see if it looks OK there?
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Re: [Dorset] Paths relative to a current working directory whose path contains symbolic links

2020-11-09 Thread Keith Edmunds
One way (which may or may not be convenient) is to run this from the shell:

$ cd $(realpath .)

That will set your current directory path to the path with all symlinks
resolved.

More info here:
https://www.tiger-computing.co.uk/linux-tips-finding-real-path/
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Re: [Dorset] Very high memory usage (ignoring cache) after being powered on for days

2020-09-10 Thread Keith Edmunds
On Thu, 10 Sep 2020 22:01:20 +0100, hamis...@live.co.uk said:

> but [...] using 20GB of RAM with almost nothing open [...] is not good
> behaviour

Why not? Is there an actual problem in the day to day use of the system?
Or is the problem that you've seen some numbers you don't like the look
of / don't understand?
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Re: [Dorset] Very high memory usage (ignoring cache) after being powered on for days

2020-09-10 Thread Keith Edmunds
Using swap is not a bad thing in itself (quite the opposite in many cases).

The actual process of swapping is expensive, though, and you want to
minimise that.

One way to see whether you have a lot of swapping going on is to run
"vmstat 1" (you don't need to be root). That will produce a new line of
data every second until you stop it (^C). in the middle are two columns
under the label "swap", one sub-labelled "si" and the other "so". They are
respectively "swap in" (ie, read from disk back into memory) and "swap
out" (the other way). If those columns hold mostly zeros, you don't have a
swap problem.

How does it look on your system?
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Re: [Dorset] Very high memory usage (ignoring cache) after being powered on for days

2020-09-10 Thread Keith Edmunds
On Thu, 10 Sep 2020 21:03:21 +0100, hamis...@live.co.uk said:

> Any more ideas? This has definitely revealed something interesting, just
> not sure what it is yet/what to do about it.


You don't need to do anything about it.
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Re: [Dorset] Very high memory usage (ignoring cache) after being powered on for days

2020-09-10 Thread Keith Edmunds
On Thu, 10 Sep 2020 14:07:00 +0100, hamis...@live.co.uk said:

> No difference to the output.

Surprising. Here:

$ ps aux|wc -l
364
$ ps maux|wc -l
1872
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Re: [Dorset] Very high memory usage (ignoring cache) after being powered on for days

2020-09-10 Thread Keith Edmunds
On Thu, 10 Sep 2020 13:57:09 +0100, hamis...@live.co.uk said:

> ps aux

Doesn't show threads. Try "ps maux" (or, if you prefer, "ps -Lef").
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Re: [Dorset] Very high memory usage (ignoring cache) after being powered on for days

2020-09-10 Thread Keith Edmunds
On Thu, 10 Sep 2020 12:09:51 +0100, hamis...@live.co.uk said:

> Using htop in that way seems to show processes that aren't currently
> running any more - like previous invocations of firefox, in the stats.
> Is that expected?

Not expected nor correct. htop shows processes that exist in the process
table. Those processes may be running, runnable, waiting on IO, sleeping
or a number of other states. Regardless of state, they will be using some
memory, although that memory may be virtual.
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Re: [Dorset] Very high memory usage (ignoring cache) after being powered on for days

2020-09-10 Thread Keith Edmunds
What problem are you trying to solve?

If you're just curious about memory usage, run htop, press F6 and sort by
M_RESIDENT or, if you're feeling more adventurous, run atop and press M
(not m). Either will show you how much memory each process is using, with
htop giving a less detailed but possibly easier to interpret display.
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Re: [Dorset] How to Cancel Existing systemd.timer(5) OnCalendar Values.

2020-09-09 Thread Keith Edmunds
On Wed, 9 Sep 2020 09:44:44 +0100, hamis...@live.co.uk said:

> so has anyone experienced cron jobs sporadically (kind of randomly) not
> running when they're meant to?

No, never (and I've been using Linux since the early 90s, and UNIX before
that).

Set up your cron jobs so that the command is:

[...] your-command 2>&1 | /usr/bin/logger -t 'my cronjob'

Then take a look in your syslog files after the cron job has apparently
not run.

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Re: [Dorset] Subject: Re: BeautifulSoup

2020-08-27 Thread Keith Edmunds
On Thu, 27 Aug 2020 13:17:39 +0100, gra...@gemmill.name said:

> [nci.html  text/plain (0 bytes)] 

I think the problem is a lack of input data.

Seriously: can you reduce the problem to a minimum example? Then you can
post the dozen or so lines of html plus your example code.
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Re: [Dorset] Understanding EXT4 disk options

2020-08-27 Thread Keith Edmunds
It's not clear to me what role D-Link plays in this. Why is a script from
a proprietary company mounting your partitions? Does the usual /etc/fstab
not come into play?

Your workarounds are certainly kludgy and I agree that you're right to
find a better way.
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Re: [Dorset] HTML

2020-07-01 Thread Keith Edmunds
Sure, send it.

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Re: [Dorset] Internet Access Using Tethering

2020-06-21 Thread Keith Edmunds
On Sun, 21 Jun 2020 10:20:24 +0100, d-...@hadrian-way.co.uk said:

> Am I missing the point?

Probably not.

I know there are challenges, but being able to directly ssh to your RPis
from the outside, ideally filtered by source IP, would be considerably
simple. I know you said that network is owned by people who don't
understand it and so won't allow it - which is perverse logic.

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Re: [Dorset] Internet Access Using Tethering

2020-06-21 Thread Keith Edmunds
I'm pleased you got it working, but...it sounds like a nightmare to
support and maintain. Very hacky, undocumented, alpha software, multi-hoop
jumping.

Do you have a clear understanding of how it works, what components do
what, why each is there, and a network diagram marked with subnet
addresses? If not, I'd suggest you get all of those or - my real
suggestion - make it orders of magnitude less complex.
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Re: [Dorset] VPN Options

2020-06-08 Thread Keith Edmunds
On Mon, 08 Jun 2020 12:51:43 +0100, d-...@hadrian-way.co.uk said:

> I've not been able to find any Tutorials (or indeed any mention of the
> tool, apart from in his links)

That's sufficient reason to keep looking.

> Alternatively, does anyone else have any information about other VPN
> Servers that will install on a Pi (and also be easy to set up,
> especially the clients)?

I still believe OpenVPN fits the bill.
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Re: [Dorset] Wireguard on RPi

2020-06-07 Thread Keith Edmunds
On Sun, 07 Jun 2020 16:38:30 +0100, d-...@hadrian-way.co.uk said:

> If you want Wireguard then you'll have to manually install it.

It's in the Buster backports repo on Debian:

$ apt policy wireguard
wireguard:
  Installed: (none)
  Candidate: 1.0.20200513-1~bpo10+1
  Version table:
 1.0.20200513-1~bpo10+1 100
100 http://mirror.bytemark.co.uk/debian buster-backports/main
amd64 Packages 100 http://mirror.bytemark.co.uk/debian
buster-backports/main i386 Packages

Does that help?
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Re: [Dorset] Using macvlan to increase Ethernet Ports

2020-06-06 Thread Keith Edmunds
So you need remote access to Raspberry Pi.

If you have fixed IP addresses at home, ssh that is firewalled to those
addresses is easiest.

If you don't have fixed IP addresses, ssh access authenticated only by
keys is easy once set up. If you'd like help with that, what operating
systems will the remote accessors be using?

The link you provided goes to the index of a forum, so it's not clear to
me which VPN software you have been trying. If you do go down the VPN
route, in my experience OpenVPN is relatively easy to set up, is secure,
and it's supported on Windows, Linux, OSX, Android (don't know about
iPhone, never used one).

Happy to help more, but I would urge "keep it simple".
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Re: [Dorset] Using macvlan to increase Ethernet Ports

2020-06-06 Thread Keith Edmunds
Terry, rewind. You've decided you need a VPN, but the VPN is to achieve
something. Define clearly what that something is.

What are you are trying to achieve?
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Re: [Dorset] Using ZOOM on Linus

2020-03-26 Thread Keith Edmunds
On Thu, 26 Mar 2020 11:38:48 +, ci...@cewland.uk said:

> Does Zoom work and is there any problem with it please?

Try it! Let me know if you'd like to set up a quick proof-of-concept call.
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Re: [Dorset] Switching away from Evernote

2020-01-18 Thread Keith Edmunds
Joplin (https://joplinapp.org/)

Open source, clients for web, Android, IOS, Mac, Windows. Syncs to your
choice of sync'd filesystem (I use Nextcloud). Markdown. Import from
Evernote. Just works. Been using it for 18 months or so, never looked back.
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Re: [Dorset] Caps Lock indicator

2019-12-21 Thread Keith Edmunds
> having an indicator to let me know caps lock is on.

As a serious (but long term) suggestion: learn to touch type. The
"indicator" is then the screen, because you can see what you type as you
type.

I taught myself touch typing in the late 80s. Painful at the time, but I
type every day of my life, and it's been extremely useful.
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Re: [Dorset] SMTP Hosting Sought.

2019-12-14 Thread Keith Edmunds
I hear very good things about Fastmail (https://www.fastmail.com/). The
only reason I don't use it is because I have wet string Internet
connectivity.
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Re: [Dorset] Very slow Desktop startup problem

2019-07-06 Thread Keith Edmunds
On Sat, 06 Jul 2019 07:54:08 +0100, ra...@inputplus.co.uk said:

> Having an unnoticed option can be the cause of awkward bugs

Try this:

$ ls
[directory listing]
$ ls *
[same directory listing]
$ touch -- -l # make a file called '-l'
$ ls *
[long directory listing as file '-l' is interpreted as an option

Now, imagine a file called ' -rf' and how that might impact an 'rm'
command.
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Re: [Dorset] Very slow Desktop startup problem

2019-07-02 Thread Keith Edmunds
On Tue, 02 Jul 2019 16:48:43 +0100, ra...@inputplus.co.uk said:

>  swapon -s

You might need that to be /sbin/swapon unless you run as root the lines
Ralph posted (and we don't run things as root unless we have to, right?)

Neat trick though, Ralph!
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Re: [Dorset] The Linux Solution book

2019-05-01 Thread Keith Edmunds
Terry, thanks for your comments and thank you also for buying a copy -
it's much appreciated.
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[Dorset] The Linux Solution book

2019-05-01 Thread Keith Edmunds
Hi everyone! My book, "The Linux Solution", is available on Kindle for 99p
today. All proceeds to Great Ormond Street Children's Charity.

I'd appreciate it if you were able to support both the book and GOSH by
spending 99p on it (the offer is only for today).

https://www.amazon.co.uk/Linux-Solution-Support-Scalable-Systems-ebook/dp/B07NZJHKHN/ref=tmm_kin_title_0?_encoding=UTF8=1556697454=8-1

Thanks,
Keith
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Re: [Dorset] KMail "ghost" messages after deleting from IMAP folders

2019-04-12 Thread Keith Edmunds
On Fri, 12 Apr 2019 14:05:23 +0100, t...@ls83.eclipse.co.uk said:

> IMHO, Thunderbird is a pretty much flawless IMAP client and has been for
> many years.

Gosh! Just goes to show how one man's meat is another man's poison!
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Re: [Dorset] Knotes and other means of keeping files

2019-03-27 Thread Keith Edmunds
On Mon, 18 Mar 2019 16:39:00 +, p...@aptanet.com said:

> Anyway, I now use Joplin

Paul, thanks for that. I'd looked at Joplin once before but - for some
reason that escapes me - I'd dismissed it. Since you posted your note,
I've moved all my Simplenotes notes to Joplin and more besides. The fact
that it works on Linux, Mac and Android, and the fact that I can store
data under my control (in ownCloud in this case), ticks just about every
box.
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Re: [Dorset] Kubuntu, clamav, and daily cron job

2019-03-24 Thread Keith Edmunds
As root, run 'crontab -e' and add that line to the end (without the
vertical bars).

Explanation of numbers at start of line: "man 5 crontab"
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Re: [Dorset] Cannot open nano in boot a shell

2019-03-11 Thread Keith Edmunds
On Sun, 10 Mar 2019 15:47:15 +, d-...@hadrian-way.co.uk said:

> I couldn't get `TERM=linux nano' or `TERM=vt220 nano' to work

Then:

On Sun, 10 Mar 2019 18:16:51 +, d-...@hadrian-way.co.uk said:

> > If you then enter, on one line, `TERM=vt220 nano', and press Enter then
> > nano should be happy and start up.  
> 
> Exactly.  That's what I did and that's what happened.

So, does it work or not? Is the problem solved?
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Re: [Dorset] Cannot open nano in boot a shell

2019-03-11 Thread Keith Edmunds
On Sun, 10 Mar 2019 18:16:51 +, d-...@hadrian-way.co.uk said:

> Exactly the same here in KMail and in BlueMail

Those links that Ralph posted are URLs. Look at the web pages: there are
three blank lines under your name on one, but not on the other.
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Re: [Dorset] Micro:Bit

2019-03-10 Thread Keith Edmunds
So, er, what's the question?
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Re: [Dorset] Monitoring Internet Connectivity.

2019-03-08 Thread Keith Edmunds
You might want to install arpalert, too.

http://www.arpalert.org/arpalert.html


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Re: [Dorset] Network connectivity issues

2019-01-12 Thread Keith Edmunds
On Sat, 12 Jan 2019 19:56:35 +, t...@ls83.eclipse.co.uk said:

> I can't see a laptop on my network from my own computer

What exact commands are you typing, and what exactly is the response?
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Re: [Dorset] Linux Format Magazine contributor

2018-12-04 Thread Keith Edmunds
I'm not exactly local, but maybe something could be arranged...
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Re: [Dorset] Swap file issue

2018-12-02 Thread Keith Edmunds
On Sun, 2 Dec 2018 12:17:19 +, t...@xendistar.co.uk said:

> I noticed a script I added several month ago (and completely forgotten it) 
> which cleared the swap and memory cache over night 

Glad you found the problem, but what were (are) you trying to achieve with
that script?
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Re: [Dorset] Swap file issue

2018-12-02 Thread Keith Edmunds
On Sun, 2 Dec 2018 11:15:23 +, t...@xendistar.co.uk said:

> sudo grep checkswap /var/log/messages
> 
> Assuming that is correct it has not shown me anything.

OK, it should be creating an entry every 50 seconds, so something is
wrong. It may be that the message isn't going into /var/log/messages, so I
suggest you:

$ logger "test"

...to put an entry in whatever log file is configured, then:

$ ls -lrt /var/log

...to see which logfile(s) were last written to. Then you can verify that
the 'test' is there. That will be the logfile to check for the 'checkswap'
messages.

> I think what is happening is that swap disappear

Why do you think that? In 25+ years of messing around with Linux, I've
never seen that happen. 

OK, I've just ready your first mail again. I suggest you reboot your PC,
then check ("sudo swapon -s") that the swap is configured exactly how you
expect. If it is, run the periodic check Ralph suggested (as discussed
above). If it isn't configured exactly how you expect, you need to fix
that first. If you have trouble, start by posting the output of:

$ grep sw /etc/fstab

and

$ sudo dmesg | grep swap
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Re: [Dorset] Swap file issue

2018-12-01 Thread Keith Edmunds
On Sat, 01 Dec 2018 12:31:46 +, ra...@inputplus.co.uk said:

> while sleep 50; do date -Is; swapon -s; done >swap.log

Nice, but I'd use:

while sleep 50; do swapon -s | logger -t checkswap

That will put an entry in the system logger that's tagged 'checkswap'. You
can look at all those entries like this:


$ sudo grep checkswap /var/log/messages
Dec  1 12:42:01 ws checkswap:
Filename#011#011#011#011Type#011#011Size#011Used#011Priority

Dec  1
12:42:01 ws checkswap: /dev/dm-4 #011partition#0114882428#011405688#011-1


I don't like having user-defined log files: they tend to get forgotten
about and fill up disks. Using logger(1) means that the log entries are in
the system log files and thus correctly rotated, etc.
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Re: [Dorset] Next Meeting - One Week Tonight

2018-11-28 Thread Keith Edmunds
On Wed, 28 Nov 2018 09:35:00 +, d-...@hadrian-way.co.uk said:

> I'll pick you up at around 7:30; usual place.

Oooo! Just like a spy movie!
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Re: [Dorset] Having repository troubles

2018-11-24 Thread Keith Edmunds
The unhelpful advice is "don't do things that lead to this problem".
Usually, that's forcing installs or using disreputable repositories (ie,
not Debian ones).

However, as mentioned, that's not helpful given that you've arrived here.

Resolving this will probably be protracted (but, to me, kinda fun). Start
here:

> Upon running 'apt --fix-broken install, I get this:
.
.
> 2 Errors were encountered while
> processing: /var/cache/apt/archives/.77-0ubuntu0.18.04.1_i386.deb 
> /var/cache/apt/archives/libnvidia-gl-390_390.77-0ubuntu0.18.04.1_amd64.deb
> E: Sub-process /usr/bin/dpkg returned an error code (1)

Start by making sure you have ONLY your distro packages configured
(/etc/apt/sources.list and /etc/apt/sources.list.d/*).Then run 'apt-get
update'.

Next, remove those two packages:

# dpkg -l | grep libnvidia-gl-390_390

...to get the exact package names, then

# apt remove $EXACT_PACKAGE_NAMES

You may have to rinse and repeat. 

Keep a note of what you remove so you can reinstall it later if needed. If
you're not comfortable working from the command line, possibly without X,
you may want to seek help from someone who is comfortable like that.
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Re: [Dorset] Database with GUI Front End for Non-Database Experts

2018-11-12 Thread Keith Edmunds
Start by writing your requirements. The hard part: do NOT include any
implementation details in the requirements. Focus on what, not how.

For example, "The database should be hosted on a website somewhere" is not
a requirement. It is a way of achieving an unstated requirement; there may
be other, even better, ways.

Once you've written the requirements, you can look at how you could
implement them. From what you've said so far, I'd be looking at a Flask
app (or, if you'd prefer to spend nine months learning the platform,
Django).

But start with the requirements.
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Re: [Dorset] In-line Replies in Thunderbird

2018-10-11 Thread Keith Edmunds
On Thu, 11 Oct 2018 07:23:03 +0100, d-...@hadrian-way.co.uk said:

> So you guys who don't use Thunderbird are seeing '>' chars at the
> beginning of the quoted text above?

Yep.
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Re: [Dorset] Thunderbirds are go?

2018-09-18 Thread Keith Edmunds
On Tue, 18 Sep 2018 21:38:42 +0100, dorset@mailman.lug.org.uk said:

> Mail from the LUG is filtered into a DLUG folder.  In this folder  the
> emails have the tabs Reply/*Reply List*/ Forward etc. In other folders
> the Tabs are Reply/Forward or if to multiple addressees Reply/Reply
> All/Forward.

Are you certain that the different tabs (do you mean 'tab' or do you
mean 'button'?) are a function of the /folder/ rather than the /email/?
What happens if you move a LUG mail to another folder, and a non-LUG mail
into that folder? My expectation is the appearance or otherwise of the
'Reply List' tab will follow the mail.
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Re: [Dorset] Lets all laugh at me, my tale of woe

2018-09-05 Thread Keith Edmunds
On Wed, 22 Aug 2018 21:47:47 +0100, dorset@mailman.lug.org.uk said:

> I just upgraded a week or so ago from Kubuntu 16.04 to 18.04 and 
> forgot to do a backup first

Do backups regardless of whether you think you'll need them. One day
you *will* need them, and life is such that you don't know in advance when
that will be.
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Re: [Dorset] Links from 2018-05-01's Pub Meet.

2018-05-03 Thread Keith Edmunds
For password management, you could keep it Open Source with Bitwarden.
Runs on Window, Mac, Linux; apps for iPhone and Android; browser plugins
for Chrome, Firefox, Opera, Edge, Safari and even the Tor Browser.

https://bitwarden.com/

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Re: [Dorset] Alternative to Simple Backup Suite

2018-04-29 Thread Keith Edmunds
RSnapshot uses rsync, but it's a bit more than a "front end" to rsync. It
organises backups in a space-efficient way, again by utilising hard links.
It's nice for running hourly/daily/weekly/monthly snapshots. The time
period is arbitrary: if you wanted retain a fortnightly or quarterly
backup, that would be trivial. With RSnapshot, typically the last hourly
backup of the day becomes that day's 'daily' backup, and so on. That means
that if you create a file at 14:37 and delete it at 18:02, it'll be in
some hourly snapshots, but won't make it into the daily snapshot. Of
course, most backup systems run overnight, and in that case your deleted
file wouldn't make it in to any backup.
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Re: [Dorset] Alternative to Simple Backup Suite

2018-04-29 Thread Keith Edmunds
On Sun, 29 Apr 2018 15:28:44 +0100, d-...@hadrian-way.co.uk said:

> What if I accidentally delete a file and don't remember 
> until after the next backup?

The products I cited all retain backups for a user-specified time. We
typically configure 30 days' retention, but it could just as easily be 300
or 3000. The backup server gives the appearance of having full backups for
every day for the past 30 (or 300, etc). In reality, it's using hard links
under the covers to avoid keeping identical copies of files from day to
day. It's smart enough to recognise when a file has changed on the
source, and then retain two copies on the backup server.
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Re: [Dorset] Alternative to Simple Backup Suite

2018-04-29 Thread Keith Edmunds
On Sun, 29 Apr 2018 15:14:54 +0100, d-...@hadrian-way.co.uk said:

> So I wouldn't be able to install it on the NAS, which is where it needs
> to be.

Well, if the NAS runs Linux - many do - then maybe you can, but don't.

I thought your original problem stemmed from sbackup being dropped from
Ubuntu, sorry.
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Re: [Dorset] Alternative to Simple Backup Suite

2018-04-29 Thread Keith Edmunds
Duplicity, BackupPC, RSnapshot and others maintain a "current" backup of
all files in the source directory. You can browse that directory and see
every file that was present in the source. However, if a file hasn't
changed since the last time it was copied, it isn't re-copied: the backup
system automagically puts it in the current backup.

That differs from the traditional backups, often to tape, where to save
time (and tape) you'd only backup those files that have changed since the
last backup ("incremental").

tl;dr You don't need to worry about incremental/full backups: you just
"back up".
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Re: [Dorset] Alternative to Simple Backup Suite

2018-04-29 Thread Keith Edmunds
No. BackupPC is a backup server which backs up clients, possibly including
itself. It may be overkill for what you want, though, on reflection.
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Re: [Dorset] Alternative to Simple Backup Suite

2018-04-29 Thread Keith Edmunds
On Sun, 29 Apr 2018 15:03:38 +0100, d-...@hadrian-way.co.uk said:

> So how do I take a full backup once a month as I've been doing for the
> last ten years?

Rather than use terms like "full backup" and "incremental backup",
describe what you actually want to achieve.

I suspect you misunderstand how duplicity works.
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Re: [Dorset] Alternative to Simple Backup Suite

2018-04-29 Thread Keith Edmunds
We use BackupPC. DWISOTT. Takes a little time to set up, but then fully
automated and a reasonable web UI. It's written in Perl, but other than
that we like it.
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Re: [Dorset] Education

2018-03-20 Thread Keith Edmunds
In 15 years of running an IT support/consultancy business, we've had one
female applicant for a technical role.

I would love to hire a (suitable) female techie!
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Re: [Dorset] Using shred

2018-02-17 Thread Keith Edmunds
On Sat, 17 Feb 2018 18:31:53 +, d-...@hadrian-way.co.uk said:

> I'd be happier if there was no chance of data recovery.

Then destroy the drives.
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Re: [Dorset] Using shred

2018-02-17 Thread Keith Edmunds
Shred is slow. No one will trivially read the ex-data following a
reformat. I suppose if the drive used to hold your plans for world
domination, a few more hours of shred is a small price to pay. However,
if the drive only held data of interest to you and you don't want the PC
running overnight, don't worry about it.
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Re: [Dorset] Eric Raymond Rails Against Uninterruptible Power Supplies.

2018-02-11 Thread Keith Edmunds
On Sun, 11 Feb 2018 23:36:13 +, pugwash1...@gmail.com said:

> I know a fair bit about how UPS's work and I would be interested i trying
> to build a home brew one if there is enough interest and support.

Enough interest and support to do what? In my experience, if you want to
do something, JFDI. Don't hang around waiting for permission, promises
from others or a team to form.
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Re: [Dorset] Funny Business When I Try to Connect to Amazon in Chromium

2016-12-26 Thread Keith Edmunds
On Sat, 24 Dec 2016 17:52:55 +, t...@xendistar.co.uk said:

> >> Mine is 53.0.2785.143 from Debian Testing [...]

> Cheers Terry, Debian repos are dragging there heels again,

"Their", not "there". Jessie Updates has 55.0.2883.75:

$ apt-cache policy chromium
chromium:
  Installed: 55.0.2883.75-1~deb8u1
  Candidate: 55.0.2883.75-1~deb8u1
  Version table:
 *** 55.0.2883.75-1~deb8u1 0
500 http://security.debian.org/ jessie/updates/main amd64 Packages
100 /var/lib/dpkg/status
 53.0.2785.89-1~deb8u1 0
500 http://mirror.bytemark.co.uk/debian/ jessie/main amd64 Packages

So you may want to add the jessie-updates repo to your list.
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Re: [Dorset] Problem with security certificate

2016-10-04 Thread Keith Edmunds
Hi Ralph

> What modem-only hardware do you like?

DrayTek Vigor 130. I would no longer recommend DrayTek routers, but their
modems seem solid.

> And did you consider a router that can run OpenWRT or similar?

I have one running Tomato, which seems pretty good.

My attitude to these things has changed over the years. I now want stuff
that Just Works. In the past I've gone for the simpler, and sometimes
short term cheaper, solutions, and I've learnt a lot getting them to work.
But I don't want to do that any more. I want stuff just to work. So I use:

 - Andrews & Arnold as my ISP. The best, by an order of magnitude, I've
   ever used. They are not, contrary to rumour, expensive, although they
   may cost a little more than what's described on the latest flyer to
   drop through my letterbox.

 - ppp + modem for the reasons discussed earlier.

 - Unbundled services. I don't want something that provides broadband,
   home phone, television, water and two poached eggs every morning. I
   want the businesses I buy those things from (well, apart from the eggs)
   to specialise in those things.

 - Claws mail, because I'm utterly fed up (bit more than that, actually)
   of Thunderbird thinking it knows more about what I want to do than I do
   ("autoconfiguring" mail accounts, downloading everything to a local
   cache, indexing, having a competition with itself to see how much
   system load it can generate and how much memory it can use). Maybe it's
   better these days - I don't use it so I don't know - but I doubt it.

 - Unifi wifi access points. The best, by far, I've ever used.

 - Debian, because it is built by people who utterly understand how to
   produce a secure and maintainable Linux distribution. There is way more
   to Debian than many realise, but after years of supporting Debian, Red
   Hat, CentOS and Ubuntu, the depth of thought behind Debian will
   surface. Red Hat is built by people who know how to make money out of
   selling Linux; CentOS is built for people who think they want Red Hat
   but don't want to pay for it; Ubuntu is built for people who are
   prepared to sacrifice reliability and uptime for the latest shiny thing.
   Nothing wrong with Red Hat, CentOS, Ubuntu or many of the others if
   they float your boat and scratch your itch, but they leave my boats
   itchy and sunk.

I am, of course, a grumpy old man.
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Re: [Dorset] Problem with security certificate

2016-10-02 Thread Keith Edmunds
On Sun, 2 Oct 2016 17:06:11 +0100, gra...@gemmill.name said:

> I cannot understand why a router should start imposing security
> certificates

A lot of domestic routers intercept web browsing, so it wouldn't surprise
me to see security certificates. A quick Google showed up this screenshot
where you can see that "Web browsing interception" is "automatic".
Personally, I've given up using such routers, and now run modem only and
manage ppp from the server.

http://screenshots.portforward.com/routers/Technicolor/TG582n/System_Configuration.htm
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Re: [Dorset] IMAP instead of POP3 in KMail

2016-06-13 Thread Keith Edmunds
On Mon, 13 Jun 2016 16:32:07 +0100, d-...@hadrian-way.co.uk said:

> Presumably IMAP doesn't work in reverse

There are IMAP copy utilities around. In short, you could upload all your
local mail to remote IMAP folders, but it would take a bit of work.

Unlike others, I abhor Thunderbird - but the beauty of using IMAP is that
it doesn't matter what your tastes are in MUAs. So long as you can find
one you like, you're fine.
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Re: [Dorset] IMAP instead of POP3 in KMail

2016-06-12 Thread Keith Edmunds
On Sun, 12 Jun 2016 12:04:44 +0100, d-...@hadrian-way.co.uk said:

> Sometimes I wonder why I stick with KMail!

So change...

> My question therefore is this.  If I changed from POP3 to IMAP, (to
> ensure that I can find the messages again in the future using any tool
> if this happens again) will I still be able to do all these things,
> bearing in mind that the messages will be retained on the server instead
> of locally?

I can't say whether KMail would let you do those things (although I can't
see why it wouldn't). Certainly those things are possible. POP3 and IMAP
are ways of accessing mail only; they don't define how it is stored or
manipulated. You really, really don't want to be using POP3 today. By
default, that downloads your mail to the local system, making it much
harder to access from other devices. It also makes it much harder to
change Mail User Agents. If you set up IMAP, you can try lots of different
MUAs, and change the one you use every third Wednesday if that floats your
boat.
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Re: [Dorset] Microsoft: Better Linux support for Skype

2016-04-27 Thread Keith Edmunds
On Wed, 27 Apr 2016 14:28:47 +0300, mr.fbee...@gmail.com said:

> The ultimate goal would be to develop something that pisses off
> Microsoft to the extent they have a temper tantrum. Some cleverly
> thought out program where they could do nothing about it.

It's not going to happen. Microsoft has a market capitalisation of almost
$400B. I'm not saying they will last for ever - they won't, and the
decline has started - but the development of any one thing isn't going to
put a big crack in that. You may disagree with the way they do business or
their approach to technology, but you don't get to be a $400B company
without some very smart business people around.
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Re: [Dorset] Microsoft: Better Linux support for Skype

2016-04-26 Thread Keith Edmunds
On Tue, 26 Apr 2016 17:38:09 +0100, c...@smithies.org said:

> I just signed the petition "Microsoft: Better Linux support for Skype".

Why?

Microsoft's only interest in Linux is minimizing the damage it can do to
their revenue stream.

If you want to run Skype, run Windows. If you want a VoIP solution, there
are many to choose from.
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