Re: [GTALUG] Ongoing war story (currently issues of user trust)

2024-01-20 Thread Alvin Starr via talk

On 2024-01-20 10:14, Peter King via talk wrote:


Can't say that I disagree with any of this.  I protested when the UofT 
decided to amalgamate all its services on Microsoft Server (to no 
avail), and even more so when they made it all but impossible not to 
use Outlook (after using mutt happily for years and years) - on the 
grounds that Outlook somehow had "more modern" security, which turned 
out to be doublespeak for "proprietary closed-source protocols" for 
accessing the mailserver that they now controlled.  Rewriting links 
and pushing their brand is the completely predicable result.


A few years ago I found a package that would proxy IMAP into an Exchange 
server.

If I remember correctly it was called davmail.
It made some of the problems with a clients insistence on Exchange go away.


I tried to warn people in IT that this was all security theatre, but 
they, like me, were victims of decisions made by administrative staff 
rather than made by informed technical experts.  There you have it.


Just recently I was told that the University would not allow me to ssh 
in to my office computer "because ssh had to be protected from the 
internet" (!), and instead I was supposed to use some binary blob to 
create a VPN into the UofT network -- and how having one point of 
entry into the whole system, trusted internally, "improves" security 
over a single ssh connection to a single computer, I could not tell 
you (and neither can they). But it's policy, so that ends discussion.




I have been on both sides of that argument and there is something to be 
said for a single point of control.
Generally speaking control over VPN users means that if you remove a 
user you have blocked their access.

Random port forwards are harder to keep track of.

However you could have run SSH from your office computer to your home 
computer and set up a port forward.



[snip]

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Alvin Starr   ||   land:  (647)478-6285
Netvel Inc.   ||   Cell:  (416)806-0133
al...@netvel.net  ||

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Re: [GTALUG] Ongoing war story (currently losing the battle)

2024-01-20 Thread Mauro Souza via talk
I don't know how much effort you want to put on a new PC, but I just built
one using a Xeon from '14 and a motherboard from Aliexpress. Paid around
$20 for the processor and $50 for the motherboard, and it's a beast. Xeon
E5-2667v3 and a Machinist MR9A motherboard, paired with some Kingsthon
memory, a 500GB NVMe, 700W power supply and used GPU. A random benchmark
says it is 16% slower than an Intel i7-7700k that costs more than my entire
computer.
I know it's an used CPU on a motherboard that is made from used,
discontinued chipset and everything else, but people are saying those are
good ones, and I have no issue with it whatsoever.

Mauro
https://www.maurosouza.com - registered Linux User: 294521
Scripture is both history, and a love letter from God.


On Sat, Jan 20, 2024 at 1:21 AM Alvin Starr via talk 
wrote:

> I have a client who buys systems from https://www.servergiant.net/
> I have also bought systems from them.
>
> The prices will not be as cheap as a minipc from amazon but you can get a
> decent HP or Dell tower system.
>
> On 2024-01-19 20:17, Peter King via talk wrote:
>
> Thanks for the advice.  The MB is pre-UEFI, and maybe the sensible thing
> to do is to upgrade to a better MB+CPU and migrate as much of the hardware
> as will migrate.  I still have a lot on spinning disks, so something like a
> tower or mini-tower is not the right form factor to have -- unless, of
> course, I chuck all the older hardware, and move to nvme/ssd configuration
> (these days cases don't seem to come with lots of drive bays).  I've never
> tried a Beelink, but I have a delightful Minisforum that seems to be the
> wave of the future.  Old towers with spinning disks are certainly the wave
> of the past.
> On 1/19/24 17:53, D. Hugh Redelmeier via talk wrote:
>
> | From: Peter King via talk  
>
> I don't remember you telling us what the older (now also failing)
> machine model is.  AMIbios from 2009 suggests to me that it predates
> UEFI.  If so, it probably isn't worth investing any time to fix it.
> Publish or perish (unless you have tenure)!
>
> (This system's problem could be as simple as a broken power switch.)
>
> A notebook or a miniPC might be a good stopgap.  You get to tune that
> suggestion to match your requirements.  Shopping too hard will waste
> your time too.
>
> A mini PC ought to just plug into your exiting desk setup.  When you
> are no longer using it, it takes little space in you cupboard,
> bookshelf or the back of your desk.  It is easy to stick in a bag to
> carry to another site.
>
> These BeeLink Mini PCs look OK to me but are not as deeply discounted
> as they have been.  You might well prefer Minisforum.  Support isn't a
> strong suit (but then your experience with Lenovo has been
> disappointing).
>
> All these are from amazon.ca.  The listings have coupons that come and
> go so the prices wander.  And there are so many listings of the same
> devices from the same vendor!  Some have an additional
> 10%-of-list-price coupon that I cannot see because I've used mine up.
> 
>  
> 
> $367 Ryzen 5 5560u 16G RAM / 500G NVMe SSD
> This is a notebook CPU.  Low power in both sense.
> Easy to update RAM and SSD but you cannot add, only replace.
> 
>  
> 
> $329 after coupon; same as above.
> 

Re: [GTALUG] war story: Brother printer won't turn on

2024-01-20 Thread Don Tai via talk
yes, I am old, but my next generation both know how to solder and how to
sew. My daughter has both a sewing machine and a serger. She has become the
"Go to" person in her circle to repair a treasured possession instead of
the pitch and repurchase cycle. When you have little money, maintenance
becomes more important. My son learned to solder at the age of 5.

We've had a great run of economics these last 15 years, but this will not
last. The nextgen will need to work harder than the Boomers.

On Sat, 20 Jan 2024 at 14:10, o1bigtenor  wrote:

> On Sat, Jan 20, 2024 at 11:26 AM Don Tai via talk  wrote:
> >
> > "I'd like to say that soldering is a basic life-skill, but it isn't. " I
> think it is.
> >
> > If you do any kind of electronics repair or hacking, then you must know
> how to solder. It isn't difficult. You just need practice. Tutorials abound
> on YT. Knowing how to use a multimeter is also an essential life skill.
> Without these fundamental skills you must trash equipment that somehow went
> awry and buy another one. This is similar to mending your clothing. You can
> just pitch the clothing and buy new, or buy better quality and learn to
> mend what you have. The choice is yours.
> >
> > With the quality of product dropping as time passes, there is more of a
> need to repair older but better quality products (computer tech excluded)
> than to simply buy new. Learn how to solder and sew yourself, find someone
> that knows, or pay someone to do it for you.
> >
>
> Hm - - - - you pretty much  put your age in neon with a comment
> like that - - - lol.
> Not that I disagree in fact.
>
> The ethos has evolved to where from about 15 to 20 years ago it is now
> considered
> ethically imperative to discard and buy new on a very very regular basis.
> Someone has to be spending money quite regularly to make all those nice
> salaries
> that mid and upper management from most large companiesand the increase the
> wealth of the financial elite. Heaven forfend if the financial elite's
> net worth isn't increasing
> by at least 15% per annum!
>
> HTH
> (tongue firmly in cheek)
>
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Re: [GTALUG] war story: Brother printer won't turn on

2024-01-20 Thread o1bigtenor via talk
On Sat, Jan 20, 2024 at 11:26 AM Don Tai via talk  wrote:
>
> "I'd like to say that soldering is a basic life-skill, but it isn't. " I 
> think it is.
>
> If you do any kind of electronics repair or hacking, then you must know how 
> to solder. It isn't difficult. You just need practice. Tutorials abound on 
> YT. Knowing how to use a multimeter is also an essential life skill. Without 
> these fundamental skills you must trash equipment that somehow went awry and 
> buy another one. This is similar to mending your clothing. You can just pitch 
> the clothing and buy new, or buy better quality and learn to mend what you 
> have. The choice is yours.
>
> With the quality of product dropping as time passes, there is more of a need 
> to repair older but better quality products (computer tech excluded) than to 
> simply buy new. Learn how to solder and sew yourself, find someone that 
> knows, or pay someone to do it for you.
>

Hm - - - - you pretty much  put your age in neon with a comment
like that - - - lol.
Not that I disagree in fact.

The ethos has evolved to where from about 15 to 20 years ago it is now
considered
ethically imperative to discard and buy new on a very very regular basis.
Someone has to be spending money quite regularly to make all those nice salaries
that mid and upper management from most large companiesand the increase the
wealth of the financial elite. Heaven forfend if the financial elite's
net worth isn't increasing
by at least 15% per annum!

HTH
(tongue firmly in cheek)
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Re: [GTALUG] Ongoing war story (currently issues of user trust)

2024-01-20 Thread Dave Collier-Brown via talk

On 2024-01-20 10:14, Peter King via talk wrote:


Just recently I was told that the University would not allow me to ssh
in to my office computer "because ssh had to be protected from the
internet" (!), and instead I was supposed to use some binary blob to
create a VPN into the UofT network -- and how having one point of
entry into the whole system, trusted internally, "improves" security
over a single ssh connection to a single computer, I could not tell
you (and neither can they). But it's policy, so that ends discussion.


In a customer long long ago, we had a similar rule imposed.

It turned out the right person to talk to was in-house counsel, as by
pure happenstance my concern was that I would be blamed when (not if)
the known-buggy product let someone pretend to be me. That was right up
his ally, and about a year later, we settled on ssh with certificates.

--dave

--
David Collier-Brown, | Always do right. This will gratify
System Programmer and Author | some people and astonish the rest
dave.collier-br...@indexexchange.com |  -- Mark Twain


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Re: [GTALUG] Ongoing war story (currently issues of user trust)

2024-01-20 Thread David Collier-Brown via talk


On 2024-01-20 02:51, ac via talk wrote:

On Fri, 19 Jan 2024 22:44:01 -0500
Alvin Starr via talk  wrote:

I have a client who buys systems fromhttps://www.servergiant.net/
I have also bought systems from them.
The prices will not be as cheap as a minipc from amazon but you can
get a decent HP or Dell tower system.




On 1/19/24 17:53, D. Hugh Redelmeier via talk wrote:

| From: Peter King via talk





look at these two "links" above, see whence they came, what they
were and what actually happened :)

to me, it is interesting that there are so very many things (and
increasing at an alarming pace every and each passing day)


Yes: we suffer from that at work, because we use some MS services.


Apparently because users@ utoronto.ca (and microsoft users) send
out malware links and this is a way that Microsoft chooses to try to
protect recipients and their users from malware/abuse - instead of
their users or recipients relying on other software, like browsers,
local anti virus, local script blockers, etc (taking the control away)


We also use a company to send us "practice" phishing emails. /*Every 
single one of those*/ I've received were marked as spam when I submitted 
them to spamcop.net.


Spamcop is the service I use for my home emails.

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Re: [GTALUG] war story: Brother printer won't turn on

2024-01-20 Thread Don Tai via talk
"I'd like to say that soldering is a basic life-skill, but it isn't. " I
think it is.

If you do any kind of electronics repair or hacking, then you must know how
to solder. It isn't difficult. You just need practice. Tutorials abound
on YT. Knowing how to use a multimeter is also an essential life skill.
Without these fundamental skills you must trash equipment that somehow went
awry and buy another one. This is similar to mending your clothing. You can
just pitch the clothing and buy new, or buy better quality and learn to
mend what you have. The choice is yours.

With the quality of product dropping as time passes, there is more of a
need to repair older but better quality products (computer tech excluded)
than to simply buy new. Learn how to solder and sew yourself, find someone
that knows, or pay someone to do it for you.

On Sat, 20 Jan 2024 at 11:51, D. Hugh Redelmeier via talk 
wrote:

> | From: Evan Leibovitch via talk 
>
> | I've had a CDP-L2520DW for at least a decade.
> | Touch wood, no problems like this.
>
> I've found Brother laser printers to be fairly reliable, especially
> considering how complex and mechanical they are.  I don't buy other brands
> so I cannot compare them.
>
> I've bought several refurb Brothers from their web site.  Since the
> pandemic, the prices seem to be way higher.
>
> Brother seems to allow clone toners. That's good.
>
> Brother's say that the toner cartridge is empty a bit prematurely.
> Luckily there are sequences of key presses that override this.
>
> | FWIW, I've found Brother tech support to be quite helpful
>
> Good to know.  I've rarely found any tech support useful so I try them
> last.  Google is much better.  I wonder if chatGPT would be better still.
>
> |  While I have no
> | idea where she was located, she did know her stuff.
>
> I always ask CSRs "what City are you in" as a kind of stamp collecting.  I
> do it at the end because it isn't important and I don't want to throw the
> conversation off.
>
> | For those of us not intrepid enough, or lacking confidence in keeping a
> | soldering gun steady -- I wonder if Brother might make available a
> | replacement circuit board.
> | More expensive than buying a single capacitor but less than replacing
> what
> | has otherwise been a pretty good unit (from a company that has supported
> | Linux very well).
>
> I'd like to say that soldering is a basic life-skill, but it isn't. One
> could try Dropping in on the Hacklab open house (Tuesdays starting at
> 18:00)? 
>
> Ohh: I thought that the Repair Cafe had died but I'm wrong:
> 
>
> The repair is pretty easy if you've done any soldering.  I solder about
> twice a decade, so I'm not very good at it.
>
> I don't know what soldering guns are good for.  Probably not electronics.
> I use a cheap soldering iron I bought three to five decades ago.
> Probably from Radio Shack.  For electronics work, you want a low power and
> small iron.
>
> The latest cool cheap soldering iron is the PINECIL V2.  It has a RISC-V
> processor and open source software.  Why, I don't know.  I'd have bought
> one but the shipping doubles the price and irks me.
> 
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Re: [GTALUG] war story: Brother printer won't turn on

2024-01-20 Thread Don Tai via talk
excellent fix, and you, hopefully, improved your soldering technique!

On Fri, 19 Jan 2024 at 17:46, D. Hugh Redelmeier via talk 
wrote:

> My LASER printer / scanner, a Brother MFC-L2729DW, would not power on.
> Normally something like this is due to a power supply failure, but I
> googled and found this:
>
> 
>
> (The video is incomplete; there is another one that is linked from the
> first, but all the useful info is in the first.)
>
> Following his instructions, I found that I could reset the machine to
> work.  But he said that it would fail again on a power failure or even
> just turning it off.  Furthermore, doing this too many times breaks the
> printer.
>
> It turns out that settings are kept in a RAM that is powered by a
> supercapacitor (instead of a battery).  Furthermore, that
> supercapacitor wears out.  All you need to do to fix the printer is
> to replace the supercapacitor.
>
> The video claims all recent Brother printers have these
> supercapacitors.
>
> The video shows you how the replace the supercapacitor.  You need a
> new supercapacitor, which he will sell you.
>
> Armed with this information, I
>
> - bought a suitable supercapacitor from digikey.ca (cheaper and faster
>   than ordering from Australia).  Actually I bought a slightly smaller
>   one, but that seems to be OK.  The original was 0.33F, 5.5V.
>   I paid $3.48 for two, plus $8.00 shipping, plus HST.
>
> - pulled apart the printer, as per video
>
> - hacked out the old supercapacitor and soldered (badly) the new
>   supercapacitor.  (Doing the job right would have required removing
>   the circuit board.  Instead, I left the old supercapacitor's legs
>   and soldered the new one's legs to the old ones.)
>
> - struggled to get the plastic panel back in place.
>
> It works.
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Re: [GTALUG] war story: Brother printer won't turn on

2024-01-20 Thread D. Hugh Redelmeier via talk
| From: Evan Leibovitch via talk 

| I've had a CDP-L2520DW for at least a decade.
| Touch wood, no problems like this.

I've found Brother laser printers to be fairly reliable, especially 
considering how complex and mechanical they are.  I don't buy other brands 
so I cannot compare them.

I've bought several refurb Brothers from their web site.  Since the 
pandemic, the prices seem to be way higher.

Brother seems to allow clone toners. That's good.

Brother's say that the toner cartridge is empty a bit prematurely.  
Luckily there are sequences of key presses that override this.

| FWIW, I've found Brother tech support to be quite helpful

Good to know.  I've rarely found any tech support useful so I try them 
last.  Google is much better.  I wonder if chatGPT would be better still.

|  While I have no
| idea where she was located, she did know her stuff.

I always ask CSRs "what City are you in" as a kind of stamp collecting.  I 
do it at the end because it isn't important and I don't want to throw the 
conversation off.

| For those of us not intrepid enough, or lacking confidence in keeping a
| soldering gun steady -- I wonder if Brother might make available a
| replacement circuit board.
| More expensive than buying a single capacitor but less than replacing what
| has otherwise been a pretty good unit (from a company that has supported
| Linux very well).

I'd like to say that soldering is a basic life-skill, but it isn't. One 
could try Dropping in on the Hacklab open house (Tuesdays starting at 
18:00)? 

Ohh: I thought that the Repair Cafe had died but I'm wrong: 


The repair is pretty easy if you've done any soldering.  I solder about 
twice a decade, so I'm not very good at it.

I don't know what soldering guns are good for.  Probably not electronics.  
I use a cheap soldering iron I bought three to five decades ago.  
Probably from Radio Shack.  For electronics work, you want a low power and 
small iron.

The latest cool cheap soldering iron is the PINECIL V2.  It has a RISC-V 
processor and open source software.  Why, I don't know.  I'd have bought 
one but the shipping doubles the price and irks me.

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Re: [GTALUG] Ongoing war story (currently issues of user trust)

2024-01-20 Thread Peter King via talk
Can't say that I disagree with any of this.  I protested when the UofT 
decided to amalgamate all its services on Microsoft Server (to no 
avail), and even more so when they made it all but impossible not to use 
Outlook (after using mutt happily for years and years) - on the grounds 
that Outlook somehow had "more modern" security, which turned out to be 
doublespeak for "proprietary closed-source protocols" for accessing the 
mailserver that they now controlled.  Rewriting links and pushing their 
brand is the completely predicable result.


I tried to warn people in IT that this was all security theatre, but 
they, like me, were victims of decisions made by administrative staff 
rather than made by informed technical experts.  There you have it.


Just recently I was told that the University would not allow me to ssh 
in to my office computer "because ssh had to be protected from the 
internet" (!), and instead I was supposed to use some binary blob to 
create a VPN into the UofT network -- and how having one point of entry 
into the whole system, trusted internally, "improves" security over a 
single ssh connection to a single computer, I could not tell you (and 
neither can they).  But it's policy, so that ends discussion.



On 1/20/24 02:51, ac via talk wrote:






Anyway, so to issues of user trust: To me, it seems that utoronto.ca
uses/pays Microsoft and outgoing emails, opens and reads all email
Even https links in already replied to chains (which are now seen as
outgoing links from the users@ utoronto.ca - are clearly - visited,
indexed, checked/scanned (probably Microsoft would say : the
websites/domains/links etc are scanned for malware, I would say that
Microsoft has previously, and in the past, simply 'blocked', 'broken' or
done other things to various websites it does not 'like')

It does so many other things as well, one small one being
'brand dilution' as readers and senders of emails and DM etc etc
- where names are re-written to the Microsoft or Facebook or
whatever abbreviated link brand name -

this serves to underline the brand doing the re-writing - as the "safe"
link in the above example - COULD easily been displayed as AMAZON
(with the actual a href -> protection.outlook.com/  as in example:
https://can01.safelinks.protection.outlook.com/?url=https%3A%2F%2Famazon.com%2F=05%7C02%7Cpeter.king%40utoronto.ca%7Cfd92cef0581c4b68b9bc08dc198daeca%7C78aac2262f034b4d9037b46d56c55210%7C0%7C0%7C638413343519234072%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C=hBoCafebsN1s%2BJepdksVjigW5yev7dnB%2FCwjWrMBNvo%3D=0

Which would then just display the original link, but with an outlook
landing.

BUT - Microsoft 'chooses' to display :
protection.outlook.com?var=very.long.=ascii.long.long.long.long.long.long.long.long.long.long.long

Apparently because users@ utoronto.ca (and microsoft users) send
out malware links and this is a way that Microsoft chooses to try to
protect recipients and their users from malware/abuse - instead of
their users or recipients relying on other software, like browsers,
local anti virus, local script blockers, etc (taking the control away)


--
Peter King  peter.k...@utoronto.ca
Department of Philosophy
170 St. George Street #521
The University of Toronto  (416)-946-3170 ofc
Toronto, ON  M5R 2M8
   CANADA

http://individual.utoronto.ca/pking/

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Re: [GTALUG] war story: Brother printer won't turn on

2024-01-20 Thread Evan Leibovitch via talk
I've had a CDP-L2520DW for at least a decade.
Touch wood, no problems like this.
FWIW, I've found Brother tech support to be quite helpful -- I used their
chat-wirth-an-agent system instead of phone or email.
The problem I had -- fuser related -- was solved quickly. While I have no
idea where she was located, she did know her stuff.
For those of us not intrepid enough, or lacking confidence in keeping a
soldering gun steady -- I wonder if Brother might make available a
replacement circuit board.
More expensive than buying a single capacitor but less than replacing what
has otherwise been a pretty good unit (from a company that has supported
Linux very well).

- Evan


On Fri, Jan 19, 2024 at 2:09 PM D. Hugh Redelmeier via talk 
wrote:

> My LASER printer / scanner, a Brother MFC-L2729DW, would not power on.
> Normally something like this is due to a power supply failure, but I
> googled and found this:
>
> 
>
> (The video is incomplete; there is another one that is linked from the
> first, but all the useful info is in the first.)
>
> Following his instructions, I found that I could reset the machine to
> work.  But he said that it would fail again on a power failure or even
> just turning it off.  Furthermore, doing this too many times breaks the
> printer.
>
> It turns out that settings are kept in a RAM that is powered by a
> supercapacitor (instead of a battery).  Furthermore, that
> supercapacitor wears out.  All you need to do to fix the printer is
> to replace the supercapacitor.
>
> The video claims all recent Brother printers have these
> supercapacitors.
>
> The video shows you how the replace the supercapacitor.  You need a
> new supercapacitor, which he will sell you.
>
> Armed with this information, I
>
> - bought a suitable supercapacitor from digikey.ca (cheaper and faster
>   than ordering from Australia).  Actually I bought a slightly smaller
>   one, but that seems to be OK.  The original was 0.33F, 5.5V.
>   I paid $3.48 for two, plus $8.00 shipping, plus HST.
>
> - pulled apart the printer, as per video
>
> - hacked out the old supercapacitor and soldered (badly) the new
>   supercapacitor.  (Doing the job right would have required removing
>   the circuit board.  Instead, I left the old supercapacitor's legs
>   and soldered the new one's legs to the old ones.)
>
> - struggled to get the plastic panel back in place.
>
> It works.
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-- 
Evan Leibovitch, Toronto Canada
@evanleibovitch / @el56
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