The DMZ

Rory Alsop

07:07

@JsupportsPalestine I don't think they are - they would have a better understanding of the basic guidelines that org enforces

And they certainly would not come here and tell us

Anonymous

09:50

@JourneymanGeek Hahahahahahhahaha, wow that is huge.

Anonymous

@RoryAlsop Yes, agreed :D

Journeyman Geek

@JsupportsPalestine Well - you know what they say about people with big keyboards...

(that broke my brain for a moment and thought OP had tiny hands)

Anonymous

@JourneymanGeek HAH

Anonymous

My hands are already fucked up.

Anonymous

If I try and type on that they'll stop working completely...

Journeyman Geek

09:53

I think you could effectively just use your fists to type

Anonymous

Haha, yeah, you're probably right :D

Anonymous

I really hope I get my new deskmats soon...

Anonymous

The one thing I hate about group buys, take so long.

A. Hersean

Or you could type with your nose, when both your hands are holding stuff that you cannot put down because your keyboard takes all the space on the desk.

Anonymous

lol

Journeyman Geek

09:58

See! Perfectly sensible!

djsmiley2kStaysInside

13:48

lol the NSA guy

does he think companies patch software for lols?

'hey guys i'm bored, lets up our version number'

'just roll back to a previous version'

yeah... and introduce all the bugs/regressions too.

Anonymous

14:11

Now I think about it.

Anonymous

I am not sure I do agree with Rory.

Anonymous

In-fact, I find it very plausible the NSA would hire an idiot.

Anonymous

I am certain of it.

ThoriumBR

@JsupportsPalestine so you'd better stop using them so much, for real...

Anonymous

@ThoriumBR meh

ThoriumBR

14:13

I've a pianist friend that was medically forbidden from playing the piano for a couple years, otherwise she would have severe hand nerve damage

Anonymous

i have more important things to do than worry about my hands

ThoriumBR

and another friend was a genius programmer, and had to stop programming for 2 years

if your hands are what you use for a living, it can be depressing to lose them

Anonymous

I mean, I don't disagree with that.

Anonymous

But the thing is, I have a lot to do and so I cannot just... Stop.

Anonymous

If I am forced to stop I might as well not have hands at all.

ThoriumBR

14:14

or you choose to stop and make provisions for that, or your hands will stop for you

if you really cannot, please go see a doctor and tell them you cannot possibly stop and they will help you with exercises, and routines, and the likes

Anonymous

Yeah, I just got some routines off the internet.

Anonymous

They seem to help a bit.

djsmiley2kStaysInside

I just got some cushions for my elbows and my numbness and rsi went away in days

so you should really concider it

You need to figure out what is causing it first tho

Anonymous

My elbows are firmly placed on my 1 out of 100 stacked deskmats at all times.

djsmiley2kStaysInside

how cushoning are they tho

Anonymous

14:22

Well, they're deskmats and there's a lot of them.

Anonymous

Pretty damn cushioning.

djsmiley2kStaysInside

My problem was I was putting all my weight onto one elbow

so maybe that's not the issue then

Anonymous

Its more my fingers themselves.

djsmiley2kStaysInside

so maybe wrist position

keyboard size/shape

Anonymous

Yeah, no idea.

Anonymous

14:25

Will find out once I finish this.

Anonymous

WIll go to the doctors /shrug

Anonymous

too busy now

A. Hersean

14:46

I had pain in my left wrist, so I needed to wear a split for a few weeks for it to heal (needless to say, it was hard to type with it). Then it came back a few months later. Rinse and repeat for 2 years. Then I bought 2 ergonomics keyboards (for home & work). I've never felt the pain since.

Lesson: ergonomics matter!

I have a "cheap" MS ergonomic keyboard, with the wrist rest higher than the keys.

* split -> splint

djsmiley2kStaysInside

I brought these

amazon.co.uk/DumanAsen-Yoga-Knee-Pad-Mat/dp/B07X46SD72/…

stuck em on my desk

no more pain

nobody

15:05

@JsupportsPalestine Well, according to Snowden, the it's mostly just contractors, NSA doesn't directly hire most of the people that work for it.

So what I think is that this is just a contractor trying to come up with an impossible system to sell to the NSA

Anonymous

15:16

@nobody Or some cunt who has a superiority complex because he got hired at the NSA?

Anonymous

(which is the simplest explanation)

Anonymous

@djsmiley2kStaysInside Oh those look useful, thanks.

Anonymous

Am I the only one who finds it really awkward when you message someone and they don't reply? I never know whether I should message them again or just... Wait.

ThoriumBR

@JsupportsPalestine you definitely aren't the only one...

nobody

15:48

If you message someone to ask for something (help or some piece of information only they know but you need to complete your job) I've learnt that it's safest to just wait :)

A. Hersean

It really depends on what message you sent and to whom.

Anonymous

life has too many rules.

Anonymous

but thats probably all good advice..

Anonymous

In other news, I nearly have my ASLR bypass working

Anonymous

hurrah

ThoriumBR

15:58

I found 2 interesting one-page sites (or one-paragraph sites?):
https://www.nohello.com
https://dontasktoask.com

2

in short, the first says "don't say hello on chat, and later ask what you want... ask away"
the second says "don't ask if you can ask, just ask"

reed

Hello, can I ask a question?

ThoriumBR

no, it's not like that...

it's

hi @reed

then you answer... and I reply

"may I ask something?"

reed

May I ask something, June I ask another thing, July I stop cracking stupid jokes

ThoriumBR

and when you say "yep, ask it" I reply with "you won't mind if I do so?"

djsmiley2kStaysInside

'it's really weird tho and I don't think anyone will know...'

ThoriumBR

16:01

and 10 exchanges later I ask something that you say "I have no idea..."

reed

well it's funny because I actually came here to ask a question, lol

but I wasn't going to ask if I could ask

djsmiley2kStaysInside

No noquestions!¬!

reed

If I create a pretty big tar archive (several GBs), encrypt it with GPG (symmetric, AES) and put that on a DVD, what is going to happen if one (or more) bits get corrupted? Do I lose the whole archive? Or part of it?

I'm afraid I'm going to lose the whole file, but I'm not sure

ThoriumBR

depend on how you encrypt... if you divide into small blocks and encrypt one by one, you lose only that corrupt one...
if you encrypt a multi-GB file and the second block is damaged, kiss goodbye to your file

some AES modes use the hash of previous block as the IV, and if you don't have the previous block...

you could use some erasure functions to encrypt the file in blocks, and if some parts got corrupted they could be recalculated from the surviving parts... if that reminds you of RAID, it's exact that

djsmiley2kStaysInside

doesn't DVD do this anyway?

I might be thinking of something else entirely

the raid thing, not the encrpytion thing

ThoriumBR

16:10

jerasure.org

they have an opensource lib (and some github code) that enables you to throw a 1GB file at it and it generates 1.6GB or more, and if you delete 20% of those fragments it still can be recostructed

pretty nice piece of code

@djsmiley2kStaysInside not what you intend... if one physical block is damaged and your reader cannot read it correctly, the underlining data is lost forever...

reed

yeah, I guess CDs and DVDs (blueray too?) have error-correcting codes so a scratch wont' be a problem. However I'm thinking of something worse than a simple scratch, for example losing whole parts of the file/archive

ThoriumBR

depends on how deep and wide is the scratch

reed

I once was curious and I remember trying to scratch a CD as badly as possible to find out if it would still play. I put it under my foot and rubbed it on the floor

it still worked, lol

ThoriumBR

I don't know how old you guys are, but we 90's kids know how is to lose your backup because some grains of sand were kept on the case and damaged the media... or someone put a stick on the CDR and it got peeled away with part of the media

reed

I think heat is a problem for CDs. If you keep them in your room, inside a drawer, it's probably going to be ok. But if you leave them in your car (parked in the sun), they will soon stop working

ThoriumBR

16:15

@reed "play" in analog way? sure... there's error correction for that... but try to put a iso file in one, scratch it, dd from it, and md5sum the result...

it's like audio over UDP, you don't care if you lost 10% of the packets...

reed

@ThoriumBR, yeah, it was music. I didn't test that with raw data

ThoriumBR

but if the data depends on the packet before it, it won't work

it's like the analog tv or digital tv... analog can be pretty noisy with interference but you can still make sense of it... digital works fine with some level of interference until it drops from a cliff...

and on @reed case, if he encrypts the large file and loses the first blocks, it's over...

it's better to compress and encrypt individual files

or create a DVD-sized file, luks-mount it, copy the files there, and dd the file to the DVD

later, mount the DVD, mount the file with LUKS, and read the files, no tar needed... and if some sectors got corrupt, you lose only a few files

unless you lose the luks headers

A. Hersean

Parchive

Parchive (a portmanteau of parity archive, and formally known as Parity Volume Set Specification) is an erasure code system that produces par files for checksum verification of data integrity, with the capability to perform data recovery operations that can repair or regenerate corrupted or missing data. Parchive was originally written to solve the problem of reliable file sharing on Usenet, but it can be used for protecting any kind of data from data corruption, disc rot, bit rot, and accidental or malicious damage. Despite the name, Parchive uses more advanced techniques that do not use simplistic...

ThoriumBR

16:30

nice!

A. Hersean

^ CLI (or GUI) to produce .par2 redundancy files for any file

ThoriumBR

I was reading about jerasure and its code, and I found out that Ceph storage uses it for, well, storage...

A. Hersean

To apply after encrypting, of course

reed

16:41

I guess my best bet would be to encrypt each file separately

ThoriumBR

try the loop-filesystem trick

reed

@ThoriumBR you mean encrypting with LUKS?

ThoriumBR

LUKS is pretty secure, and you can just losetup, mount it, copy all files there, and burn the loop-file on DVD

I know I have a script to create and mount a LUKS loop-file somewhere...

reed

yeah, there's still going to be the problem of a possible corrupted header (where the key is stored, I don't know what to call it)

ThoriumBR

create the loop file smaller than the DVD. export the header, copy both the loopfile and the header backup to the DVD

and man, DVDs are dirt cheap those days, burn the same loopfile on 2 (or 10) DVDs and it's done

until the markings on the DVD-R fade away with time...

reed

16:47

yeah, I thought of that kind of redundancy

I don't know what I'll end up doing. I'll think about it. Thanks for the advice for now

ThoriumBR

20 years ago I read about "juggling data": cut your file into small pieces, send by email to yourself but make your mail server inaccessible for 24h... the sender server will keep the files in queue and retry for at least 48h... after 24h you reenable the mail server, receive the file, and forward it to yourself on another domain... rinse, repeat... free smtp server based storage

reed

or embed your files in selfies with steganography, then upload the pics to Facebook: free cloud storage

ThoriumBR

17:03

facebook can downsample your pictures and ruin the embedded files

better use deepsound, record your band (or anything at all) and upload the files to youtube

reed

hmm, youtube definitely reencodes audio and videos, as far as I know

Rory Alsop

@ThoriumBR but be very careful your songs don't sound like a song by a big MPAA supported artist or you may lose them in a copyright dispute...

ThoriumBR

you can get any freeware sequencer, and a random number generator, and create music

or record the rain, or traffic, or your dishwasher

Rory Alsop

@ThoriumBR yeah, mostly my cynicism brought on when Apple removed my own music from my own iTunes library 10+ years ago. Which is why I won't have apple products in my house.

Aside from the iPad I won at a conf that I use to play idle games on...

ThoriumBR

I have an iphone because it's company mandated

the "usage report" every week says I am using it 10 minutes per week on average... most of the time it's to unlock it so it can charge, to see if it was dead, or to answer random spam...

reed

17:10

"OMG dude, you electronic music is soooo good! I'm going to buy your album!" But it's actually your porn archive re-encoded to map each byte to a note

ThoriumBR

hahaha...

Rory Alsop

@reed nice

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