Root Access - 2017-08-15

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1:47 AM

##/tumbleweed

user image

2:41 AM

0

Q: PGP support for mails

Feature request : Make a field per e-mail address where one's can enter a PGP key, so newletters and job alerts are encrypted (Facebook deos so e.g)

feature-request

3:22 AM

OMG WHY ARE GIRLS SO SENSITIVE

what

Nothing

Just... Idk

People in general

Are very weird

want to telegram?

@Avery in a bit maybe

Okay yeah

What's inside a Tesco Power Hit disposable phone charger.

e-waste!

3:32 AM

Let me guess: Lithium primary battery.

High-margin product.

@bwDraco I believe it's a lithium-ion rechargeable battery inside; that's the real crime

and it's 3 pounds UK for ~2 hours of charge

£3?

Useless for my phone, which uses USB Type-C.

Wait a sec. LiPo?

oh, he just said "lithium battery", didn't say the type

:(

"3.7V which suggests it's lithium-ion, and it's rated 600 mAh"

3:36 AM

3.7V 600 mAh. That's lithium polymer.

Just saw that through closer examination of the video.

Perhaps they'll make fun firestarters by poking holes in them once depleted :P

oh wow, he just said it recharged successfully

so let me get this straight: batteries that could be recharged at least a few times (yes, even if they are worn out, re-used batteries from dead phones and cameras that are on their last legs, they might still be worth 25 or 50 charges) are being chucked in the trash after one use

Well, 600 mAh is pretty low. It looks like it's running the battery very hard.

I don't know the output of this thing, but more than 1.2A (2C) from the battery cell might be a problem...

Also, he notes a high voltage (4.27V). That's well past the correct full-charge voltage of 4.2V. Unless the battery has a nominal voltage of 3.8V or higher, you don't charge it past 4.2V.

Sure, it's cheap to manufacture, but why Li-ion in a disposable product?

@bwDraco I would surmise they're trying to get one last hurrah out of marginal, used cells -- I'm not sure but they could be effectively "recycling" these cells by making sure they can hold at least a certain amount of voltage and then shipping them out

of course, for the cost of another $5 of circuitry, you could put in the standard power electronics for cell protection (to prevent overheat/fire) and add a charge port and get at least a few dozen charges out of it

@allquixotic Most primary batteries will "recharge successfully". As in, it looks like it recharges.

Until it goes up in flames.

It's not a primary battery.

3:43 AM

I can't watch the video right now, but how is he "recharging" it?

@Bob he soldered the connections to a 4.27V e-cig charger he had laying around

@allquixotic That sounds incredibly dodgy.

A proper charger with well-known characteristics, or a "charger" off alibaba?

@Bob bigclivedotcom always does dodgy stuff :P it's funny, he has a very high-end knowledge of electrical engineering that he regularly displays by reverse engineering circuits and such live in his videos, but he often uses cheap crap to get the actual work done

and he often dissects and tears down cheap crap products, like this

@dav @jou superuser.com/a/1240975/432540

NAA

@allquixotic Assuming it's a proper charger, I'd love to see what the CC/CV curve looks like

3:46 AM

Amazon UK link for the Anker PowerCore 20100, £28.99 - I've had mine for close to two years and still use it rather extensively: amazon.co.uk/d/Cell-Phone-Portable-Power-Bank-Chargers/…

@rahuldottech I choose to read this as you saying the equivalent of a sheep going "Baaaaaa" but rhymed as "Naaaaa"

If it's just a constant voltage source... bleh.

@allquixotic lol

(US$39.99 here)

@bwDraco the cost of nearly 9 non-rechargeable units... so I guess if you're super desperate, have next to NO money and really need a phone charge, it's a viable one-time option

definitely something where even buying 5 of them would be costlier than a cheapo rechargeable power bank

3:48 AM

@allquixotic I saw a powerbank vending machine in the train station the other day

they're rechargeable ones

should take a closer look at the price sometime :P

@Bob yeah but how much were they going for?

@allquixotic didn't go over there to check... kinda wanted to get home :P

maybe if I remember today

it was right next to your standard drinks and snacks vending machines

Shipping LGHB2 18650 cells Out

title is deceptive; that's actually a very interesting video with actual footage of inside a battery recycling facility

youtu.be/Va1-chPALxE?t=395 (t = 395 seconds) - relevant

> The ones that are not bloated, we will volt-test and reuse. ... Take two of these, pop it in a little plastic case, put a 4 cent part and 15 cents of labor. And you know what I just got? (Plus another 25 to 30 cents in packaging) ... I have an external, portable cellphone charger that I will buy from a gas station.

4:04 AM

Okay, my PowerCore 20100 actually has one of the two output ports damaged due to a short between Vbus and data (my fault). Oddly, my OnePlus 3T will actually charge faster on it, albeit with more heat. It first thinks it's a USB data port and pulls only 420 mA, then treats it as a dumb USB wall wart and draws up to 1.9A from the port when it realizes there's no communication. (The phone doesn't draw more than 1.5A from a "smart" charging port.)

(the 1.9A figure is an estimate, but it's still more than 1.5A)

@allquixotic or add new shrinkwrap with (Ultra|Trust)Fire branding and sell it on ebay

Father once ordered an el-cheapo headlamp that shipped with "5000 mAh" UltraFire cells. The headlamp's USB charging drove 5V USB power directly into the cells. Immediately returned it on my advice.

@Bob Point I was trying to make was that these 3.7V 600mAh cells in the one-use chargers, even if they're "rechargeable", probably had a long past life used in some kind of personal electronics for months to years; I really doubt they're selling those new for 3 pounds.

You'll be surprised at how low the BOM cost of these sorts of cells is.

£3 is pushing it, but chances are good they're reject or low-binned cells.

On the other hand, a proper, name-brand (e.g. Anker) power bank will have premium cells purchased in bulk directly from the manufacturer.

This is how Anker is able to get away with these kinds of prices, selling a power bank with six premium 18650 cells for a mere $40 - they buy cells from Panasonic et al. by the millions.

@bwDraco You're pretending it's some feat...

I can buy a pair of them for, what, $8 off fasttech

4:20 AM

No matter how you look at it, though, Li-ion cells are not all that expensive.

It's that some battery manufacturers demand insane premiums.

At, say, $2.50 a cell, it's $15.00 for the cells. Casing and circuitry, $2-$4. Packaging and accessories, $1-$2. Labor, $2-$3.

By my estimate, we're probably talking about a $20-25 unit cost, and probably closer to the low end of that range.

I suspect the cell cost could be as low as $2.

So why the huge markup from some companies?

Anker at least is charging a sane price for their power banks. But I've seen some retailers (albeit before power banks became widespread) charge $100+ for this sort of capacity.

@bwDraco really good ones with high capacity, extra safety margins and great durability are pretty expensive because they're made in lower volume

with perhaps the notable exception of Tesla car and powerwall batteries which are being mass produced with high quality

Anker is in that high-quality bracket.

Not on the same scale as Tesla, of course, but they are buying cells by the millions.

Tesla's doing hundreds of millions.

5:20 AM

hm. still incredibly smokey out

all the smell and visibility of a forest fire with none of the danger

well, almost none. air quality alerts.

5:36 AM

@Bob Yikes; hope you have an air purifier in your office/bedroom

If I were in a situation like that, to reduce smoke inhalation / volatile organic compound / ash inhalation, I have poor air circulation in my room with the door closed, so I can get the air quite nicely purified with the purifier running on max :P

@allquixotic nope. but I can't really smell it indoors, soooo

> Air quality monitors reported high amounts of particles and low visibility in numerous suburbs - with "poor" and "very poor" air hanging around until late on Monday evening.

bleh

> The elderly, children and people with heart and lung conditions were most at risk, Dr Scalley said.

6:05 AM

So how did you mess up your first server; I personally moved /* to /www/* on prod.

1 hour later…

7:10 AM

i accidently one companys UAT server.

Oliver Salzburg

user image

7:28 AM

urrrrrrrrrrrgh feel sick

and not sure if it's just because i took my medication and haven't eaten yet

1 hour later…

Journeyman Geek

8:40 AM

I hate ip cameras more than I hate printers

@JourneymanGeek why? they're great for when you need to break into a network ;)

Journeyman Geek

@Bob I currently have one that won't respond

and need to get on a ladder to fix it I suspect

this is cute tho

we were logging in with the wrong password and it was basically giving us bogus info

9:43 AM

that's.... different

but doesn't tell you it's the wrong p/w

?

Journeyman Geek

yup!

Its adorable. and utterly infuriating.

like a small puppy that pees on your nice shoes.

lol

2 hours later…

12:00 PM

yawn

lunch time and all is quiet

sup guys? girls? cats?

q

bbc.co.uk/news/uk-40929709

fail there bbc

big ben is the bell

no one's photoing it very well

Also americans, ya'll don't get it

You pulling down a statue about something that happened 200 years ago, is like Alqueda blowing up the Buddist statues because they disagree with them

pointless

-_-

at the time, it was far more normal than it is now, sigh

destory the memory of it? you're doomed to repeat it

wow it's too quiet here, i feel like the channel is broken D:

even @allquixotic can't save me now.

12:16 PM

@djsmiley2k I was looking away from my screen; take a chill pill

Oliver Salzburg

@djsmiley2k Amazing article

@OliverSalzburg Such quality, right?

'We best not report on the uprising in america, here's a photo guide instead!'

@allquixotic :O

i'm just not use to it being so quiet in here

@djsmiley2k History getting caught up in identity politics. A lot of people now associate with "Confederate" identity or ideals because it's in line with the ideals of "Conservatives" / Republicans today.

nod

doesn't make sense tho, right?

I mean, if we started pulling down statues of Nelson, because we decided that Wars using Ships are now terrible....

Oliver Salzburg

12:35 PM

Anything to get your mind off the war

...statues?

war?

1:01 PM

?

firstly @Bob enjoy the BBC's quality reporting on how not to take a picture of a bell.

53 mins ago, by djsmiley2k

http://www.bbc.co.uk/news/uk-40929709

but... statues?

bbc.co.uk/news/av/world-us-canada-40935250/…

Statues.

Oliver Salzburg

It's pretty amazing to watch a fight where all sides have idiotic goals and approaches to achieve them

1:19 PM

:S

hey all :P

anyone know how to properly form an LDAP query?

1:31 PM

@varfirstName ... that question makes no sense to me

ou=ABC,cn=x,cn=y,cn=z

@bertieb did you get it working yesterday?

1:47 PM

Hello guys do you discuss about visual studio here? VS Community 2017

I thought it was free

Oliver Salzburg

@samjoe And?

Wait i will upload an image!

Oliver Salzburg

I mean, it is free

user image

uh...

1:50 PM

@Oliver It says evaluation period will end in 30 days, i downloaded like 5GB of software and this is what i get

It's a bug. Sign in and it will go away.

i downloaded C++ toolset for windows also.

@samjoe Sign into a MS account

it will go away

20

Q: Visual Studio Community 2017 is a 30 day trial?

So I installed the supposedly free VS Community 2017 on my PC and 30 days later I get this message from VS saying that my license has expired. License? Expired? I thought the community edition was "free forever" therefore sporting the "community" tag. Whats going on? I tried signing in with my ou...

visual-studio-2017

oops

Oh! I need to create an account! thanks @varfirstName !

No problem.

A quick google search very often gets you your answer a lot faster

Just letting you know, we are NOT a code support forum

1:54 PM

Really sorry I thought this site was a forum! I created an account just for this. Guess searching first saves everyones time!

Yep

I don't mean to tell you not to ask questions here, I just mean other people WILL hound you for it

woof woof!

Holy shit, grats, @BenN

:)

@BenN VB? you didn't write it in PowerShell? :P

2:00 PM

My man!

VB :)

Hehe, unfortunately the PS that comes with non-Win10 doesn't have classes and interfaces :(

I also know C# but have been programming in VB.NET for longer, so I'm more fluent in the latter

VB.NET is best

Welcome, @MetaEd

Journeyman Geek

@varfirstName we don't hound people. We terrierise them

also, we do try to keep this place from getting over run with questions. There's a properish way to handle that here, which is hang out and complain ;p

@varfirstName Mornin.

@BenN ...you chose VB.NET over C#?

FOR SHAME

SHAME THE HERETIC

2:12 PM

shamenun.com

At least they're both .NET, and I don't have any horrible VB6 compatibility features on

2:56 PM

@ave telegram

3:11 PM

@BenN ...there's VB6 compat features?

I think I was happier not knowing that :P

Does DoEvents still exist? :P

Oh yes

oh no

It has On Error Resume <label>, you can set Option Compare Text, and if you disable Option Explicit you don't have to declare variables

All of these are horrifying and I avoid them with a passion and a fervor

@BenN On Error Resume Next?

Yup, that too

3:15 PM

...I didn't know that was possible in CIL

what, does it wrap every statement in a try-catch?

Probably

oh god

2

Q: CIL implementation of On Error Resume Next

I've always wondered: How is the infamous VB.NET statement "On Error Resume Next" converted to CIL? Does it involve wrapping every line with try...catches?

.net vb.net cil

        num2 = 0;
        switch ((num2 + 1))
        {
            case 1:
                goto Label_0000;

            case 2:
                goto Label_0007;

            case 3:
                goto Label_000E;

            case 4:
            case 10:
                goto Label_00C0;

            case 5:
                goto Label_001A;

            case 6:
                goto Label_0021;

            case 7:
                goto Label_0028;

            case 8:
            case 9:
                goto Label_003D;

@_@

that's disgusting

(I'm also scared at the thought of just how many pieces of code with On Error Resume Next are probably in prod)

I'm sure there are LOB applications that are still in VB6

An earlier version of VS (not sure about current ones) had a really slick feature where you could open a VB6 project and it would convert it to VB.NET

It did a great job when I was transitioning

I remember trying to install VB 6.0 on Win7

that was fun

IIRC it scanned through my entire directory tree and found an old copy of VSS deep in some backup directory

I've heard of its computer-scanning behavior, but I still don't understand why it does that

The last time I used VB6 was on XP though, so it's been a while

3:22 PM

Survey for GPU support for Windows Subsystem for Linux

From reddit.com/r/bashonubuntuonwindows/comments/6tnlzi/…, posted by Microsoft PM looking for feedback

Huh, neat

I learned yesterday that Let's Encrypt works inside BoUoW, so no more fiddling with VMs for certs! \o/

Do Linux GUI applications run inside WSL yet?

@BenN ...not really. It won't auto-renew properly since WSL doesn't support services.

@BenN I use it often with virt-manager and now RemoteBox. VcXsrv works well :)

Right, I've just been doing it manually anyway, since shared hosting doesn't tend to play nice with LE

No official support for any GUI, but running the X server on Windows...

Ah, very neat

3:28 PM

@BenN Not using the .NET implementation? How could you?! :(

Huh, I was not aware of that project's existence

I'll try that next time I need to renew, thanks for the link!

@BenN Are you doing DNS challenges?

That particular one is only good for IIS, I think.

Nope, file upload

I'm using it with Remote Desktop Gateway.

If it doesn't do what you need, you can use the more advanced PowerShell one

:D

3:34 PM

it's a couple more commands but I'm sure you know how to put it together in a script :P

There's also another one here, that explicitly supports manual challenges => github.com/oocx/acme.net

And a GUI frontend for ACMESharp => github.com/webprofusion/Certify

@BenN looks pretty straightforward github.com/ebekker/ACMESharp/wiki/Quick-Start

w/ Method #2

Yep, that appears to do what I need

which you can also script to do the upload automatically :)

Indeed

> How do I do renewals? Official support for renewals has not yet been implemented (i.e. via the renewal support of the underlying ACME protocol).

@_@

github.com/ebekker/ACMESharp/issues/57

I think I've just been generating new certs anyway

3:39 PM

yea apparently the validity period was reduced from 1yr to 60days at some point so renewing is pretty pointless now

> you need essentially need to start with the very beginning of the process (except for the account registration) every time, so begin with New-ACMEIdentifier. You can't issue Complete-ACMEChallenge with being presented with a set of challenges which is what New-ACMEIdentifier does.

Yep, that appears to be the equivalent of what I've been doing with the Linux client

2 hours later…

5:28 PM

send halp

Indian schools don't give email addresses to students

So I can't make use of Microsoft's free offer

student ID

@varfirstName No option

??

Not on the website

Course schedule?

5:37 PM

microsoft.com/en-us/education/students/default.aspx

@varfirstName hm?

do microsoft imagine

then call microsoft and see how you can work around it

Meh

I still have my old school's address

Should not use it, technically...

Don't.

1 hour later…

6:46 PM

@rahuldottech do yo have student ID?

if you do, you can use imagine.

@Avery imagine?

microsoft imagine

@Avery oh wow, thanks

7:31 PM

Rahul if you can learn to read, I had already said that.. :P

8:07 PM

@OliverSalzburg Unfortunately I'm not going to have time for coding for a few days, but if you could file a report in the issue tracker at your convenience, I'll investigate as soon as I get a chance. Thanks!

8:42 PM

Sec. Mattis: If North Korea fires at the US, it's 'game on'

DPRK has backed down but is still watching closely.

It's clear, howeverm that if the DPRK launches missiles at any US territory, including Guam, we will consider it an act of war.

@varfirstName oh sorry

Totally missed that message

@bwDraco Nuclear Winter looming ... :/

9:03 PM

Fuckin' hell. I hate the extremists in office.

> The Democratic People's Republic of Korea is a genuine workers' state in which all the people are completely liberated from exploitation and oppression. The workers, peasants, soldiers and intellectuals are the true masters of their destiny and are in a unique position to defend their interests.

Yeah right.

(DPRK website via Wayback Machine, NSFW)

Feel free to flag if appropriate.

the UI looks out of...

redstar OS

...eh, is DPRK propaganda NSFW?

no, IMO

An earlier example:

chat.stackexchange.com/transcript/118?m=28790889#28790889 .

You get the idea.

9:21 PM

Oh my god...

XD

Someone had a BIT too much fun with video editing

9:43 PM

> EEXXEECCUUTTIIVVEE SSUUM MMMAARRYY

Google OCR fail.

@bwDraco Why the wayback machine? Is it blocked in the US?

user image

Just trying not to access their server directly.

s/OCR/PDF parsing/

> EExxeeccuuttiivvee SSuummmmaarryy

user image

rofl

##s/OCR /PDF parsing /

@bwDraco That didn't make much sense. Use the !!/help command to learn more.

@bwDraco Google PDF parsing fail. (source)

I always get distracted from review queue

1 hour later…

11:18 PM

morn

roar

Journeyman Geek

11:36 PM

Or it's a way to keep people from copy pasting

11:54 PM

looks more like the doubling for bold

In typography, overstrike is a method of printing characters that are missing from the printer's character set. The character was created by placing one character on another one — for example, overstriking "L" with "-" resulted in printing a "Ł" (L with stroke) character. The ASCII code supports six different diacritics. These are: grave accent, tilde, acute accent (approximated by the apostrophe), diaeresis (double quote), cedilla (comma), and circumflex accent. Each is typed by typing the preceding character, then backspace, and then the 'related character', which is `, ~, ', ", , or ^, r...

troff (manpages) still uses this convention

support.google.com/docs/forum/AAAABuH1jm0sDRUR9kem9k/?hl=en

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Transcript for

Aug '1715

Root Access

For all you Super Users out there. You have backups, right?

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