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Holy shit, Hunter02, fucking really!?

it's because Hunter01 was too easy to guess... as easy as Maga2020...

Imagine if AzureDiamond was actually Hunter Biden...

@MechMK1 Hey

@OakDEV hey

I'll 7 pass+

DBAN works fine

Can I run it from the machine to be wiped (upon reboot?)?

yes

and you don't need 7 passes... one is pretty enough for anything besides nsa-targetted hdd... two is overkill. 3 is way too much overkill...

if you are using linux, dd if=/dev/zero of=/dev/sda bs=4M oflag=direct will suffice

2 passes being overkill is the first time I heard about it.

search around... information density on today's disks are so high that one pass overwrites pretty much everything, and any bit left is too thin to be of any use

back on the IDE disks time, a electron microscope could in theory recover some information, but that was a lot of time ago...

and I never heard of multiple layers of unindexed data on a HDD... any reference?

Your guess seems more educated than mine. I'll keep it in mind.

Well, it was very basic hardware classes

and I was told hard disks have multiple layers

and when data gets written on top, it falls to the underlaying layer

Which is why (i think) the DoD standard for data deletion is/was 7 passes +

DoD instructions were for a couple disk generations ago

I'm reading that exactly.

and they are not even using their own standard anymore

back on MBs worth of storage... now with TB disks, that's not needed anymore

and the DoD standard "name" is mostly obsolete

That's why I came here.

Thank you.

So a regular 1+2 wipes

the "electron microscope"-thing is something that I personally never heard of anyone pulling of.

Right (Theoretical)

but explain this then:

I have a regular Sata 256

I wiped it, once, and I could recover some files using recovery softwares.

Back maybe 5 years ago

you wiped, or deleted?

Fairly certain I wiped, but now I'm not so certain.

Maybe just a reformat.

a reformat is not a wipe, and if you did a quick format, that's expected

I know.

Now I almost want to try it

but a dd will overwrite everything

try it... dd from /dev/zero over it ONCE, and try to recover something

Do you have a small HDD laying nearby?

Can I launch a dban wipe from windows?

I don't have any spare hdd around... and you cannot dban from windows

you have to boot from it

dban is an OS?

if you have any live linux distro around, you can use it too, instead of dban... but dban is supposedly easier to use

liveOS?

Meh, won't use tails for that purpose.

yes, it's a iso you copy to a usb drive, boot from it, and nuke the hdd

Just out of respect for tails.

Ok cool, common line?

command line*

you can use tails, ubuntu, bsd, whatever you have...

from command line, if your hdd is /dev/sda, dd if=/dev/zero of=/dev/sda bs=4M oflag=direct

What does DBAN does different than a regular wipe from bash command?

I'll save that line (I assume it fills the volume/drive with random bits?)

it have a menu, lists the disks, ask confirmation...

so I heard... never used it, I usually go the linux way, from inside the disk to be killed...

You can't wipe the volume you're running on though, right?

you can

as soon as dd is loaded to memory and starts running, it can wipe itself just fine

dd = dban?

or a regular bash command (delete drive?)

also, do I use rufus/ether for bootUSB?

no, dd is a common regular unix command... dban is darik's boot and nuke

dd name came from a joke from IBM JCL language where DD stands for DATA DESCRIPTION...

you can use rufus, unetbootin, or whatever iso-to-usb app you have lying around...

from linux I usually use unetbootin, or dd...

Stupid question, are you from Brazil?

yep

not my fault...

I think ... :o

he was... and there's absolutely no issue with that

DBAN installation suggests using... drum roll fasten your helmet seatbelt drum roll ...CDBurnerXP!

hahaha

get a linux distro, rufus it on the usb drive, reboot, dd, done

Yeah I actually just replaced a linux mint

with DBAN which doesnt load

mmmmmmm

why is this so hard

linux MX*

can you elaborate exactly what the command does Im about to launch it

dd if=/dev/zero of=/dev/sda bs=4M oflag=direct

only make sure /dev/sda IS the disk you want to kill

the rest can be as it is

make really sure, make sure ten times over... once you start, it's too late to regret

gotcha

surprising that dd is a standard command

since what version?

since the dawn of time...

Microsoft doesn't have that (?)

it's a unix command, not windows command...

I know

I heard you.

It's my reaction\

it may be on WSL on windows, probably

wsl?

Oh

I don't have any windows with wsl around to test... windows subystem for linux

No worries, but yeah, I'm surprised this command exists and is effective at securely erasing data.

and most importantly that it's a standard linux command

there since forever

it's not for secure erasing, but can be used to it... it's usually used for converting data, creating partition images, extracting parts of a file...

Right.

if you write back a image full of zeroes to a partition, it's a secure erase

And you use it to zero out the thing

I'm still very curious about the layer thing

layers aren't a thing since the start of the century...

Im also reading the same thing.

Welp... I learn from this.

unet stuck on extracting 7th item

Whats a smart way of verifying the drive i need to nuke?

fdisk -l

and unplug everything you don't want to erase

Even live usb?

no, live usb can stay

Alright, so, sda is main disk, sdb is usb

command should be identical to what you posted, right?

dd if=/dev/zero of=/dev/sda bs=4M oflag=direct

Anticipation

I'm waiting on you with finger on the enter key.

AAAAAA

where r uuuu

you can do it

it's the command I post

Running...

so you are set... one pass is enough... if you want to waste time, run a second one, but I personally never did 2nd pass

long pass

still running!

Thank you.

Oh, Thor

The Almighty

AlmighThor

open another terminal, run killall -USR1 dd and you will see how much it already erased

dd will spill out some progress status

on the killall terminal nothing will happen, on the dd terminal there will be a message... repeat as much as you want, it won't disrupt dd

killall doesnt delete?

doesnt kill?

(not that it matters)

killall sends the kill signal, the USR1 is a kind of signal that does not kills

*sends the kill signal by default, but you can send another one, and USR1 is a signal that can do anything the developer wants... on the dd case, it will print status messages

I need to sniff Armoury crate software

"kill" is a bit of a misnomer, because what it actually does is send a signal to a process. The default signal is SIGTERM, telling the process to please end. The more brutal variant is SIGKILL, signalling the process that it is now being killed. -USR1 sends the signal SIGUSR1, which just means "some user-defined signal", which in dd's case means "display the progress".