kristoff

joined 1 year ago
[–] kristoff@infosec.pub 8 points 1 week ago (15 children)

Hmmm .. πŸ€” The best way not to make friends with somebody with over 30 years of coding experience: suggest him to use ChatGPT to write a computerprogram 🀣🀣

[–] kristoff@infosec.pub 7 points 1 week ago (3 children)

Wauw! So many answers in such a short time. Thanks all! πŸ‘ (I will not spam the channel by sending a thank you to all but this is really greatly apriciated)

Concerning ncurses. I did hear of it but never looked at it myself. What is not completely clear for me. I know you can use it for 'low-level' things, but does it also include 'high-level' concepts like windows, input fields and so?

The blog mentioned in one of the other posts only shows low-level things.

[–] kristoff@infosec.pub 1 points 4 weeks ago

No apps at all ???

So it really is like a dumb terminal. Now I know why I never used a ChromebookπŸ˜€

[–] kristoff@infosec.pub 1 points 4 weeks ago (1 children)

Sounds like a money laundering sceme!

[–] kristoff@infosec.pub 1 points 4 weeks ago* (last edited 4 weeks ago) (2 children)

As I mentioned earlier, I guess chrome is more like android where you have a much more strict seperation between the OS, applications and user data. (I remember reading about all the different partitions on android and what they are used for, but I should bruch up my knowledge on this).

Thanks for the additional into on brtfs! πŸ‘

[–] kristoff@infosec.pub 1 points 1 month ago (1 children)

Just watched some videos on btrfs. I start to understand the conceps. Perhaps I should also look into how exactly

On windows and the "recovery partion". I guess what you say is that it should always be possiblity to boot in some kind of system, but it will not happen automatically as there is no way for a system to detect that the system completely hangs.

Thinking about it. It kind of strange. Embedded systems have watchdog interrupts that get fired if the system hangs (i.e. if it does not provide a "yes, I still live" signal every "x" milliseconds). Does a PC not have something similar?

[–] kristoff@infosec.pub 1 points 1 month ago

just watched some videos on btrfs. Looks interesting indeed. I will look into it and perhaps do a test-installation and see how it goes.

Thanks for the info

[–] kristoff@infosec.pub 4 points 1 month ago

OK. That makes a lot more sense.

Thank you for correcting the original post. πŸ‘

[–] kristoff@infosec.pub 2 points 1 month ago (5 children)

Yes, that was indeed the question.

If I read it correct, you need a specialised distro for this. You cannot do this on a off-the-shelf Debian or Ubuntu?

I'll do some searching on 'unmutable Linux'. Thanks for the (very quick) answer! πŸ˜€

[–] kristoff@infosec.pub 3 points 1 month ago (13 children)

Concerning linux, yesterday I was watching this video on computerphile on the crowdstrike incident. https://www.youtube.com/watch?v=rlaNMJeA1EA (*)

What is interesting is the comment made in the video on how chromebooks do software upgrades with dual "OS" disk-partitions and the ability to rollback to the previous OS-partition.

Question: is something like this also possible on one of the major linux distros? (debian, ubuntu, rocky, ...) What would be the procedure to do this kind of "dual partition" system-upgrade?

(*) a great video that explained some of the technical details in a very clear way, including some very interesting 'lessons learned' and "what if"s If you ever need to explain crowdstrike to your manager, this video is a good start.

[–] kristoff@infosec.pub 28 points 1 month ago (3 children)

This is a typical mail a phishing campaign would send out, and we have already said to people "never believe this kind of messages. They are all fake.

Now, if a genuine company sends out mails with a genuine gift-cards (what the article on techcrunch seems to indicate) .. this is NOT helpfull at all!!!

And that comming from a cybersecurity company (rolling-eyes)

[–] kristoff@infosec.pub 1 points 7 months ago

Yes, that's a very useful idea. Thanks!

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